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Porth Trecastell (Beach) (Isle of Anglesey) weather

Here are our top tips to keep you, your friends and family safe at the beach with links to Royal National Lifeboat Institution (RNLI) and Met Office advice.



Forecast days

Heavy showers.
Beach safety today
Large, powerful waves and strong wind
  • • only experts should take part in water activities

Tide: Next low tide (1.3m) at

Sunrise iconSunrise:
Sunset iconSunset:
L UV
L Pollution
No pollen data.

    7 day forecast for Porth Trecastell (Beach)

    Today (24 October 2025)
    Time
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Heavy shower day Heavy shower day Light shower day Light shower day Light shower day Light shower night Heavy shower night Heavy rain Heavy rain Heavy rain Light shower night
    Chance of precipitation
    90%
    90%
    80%
    60%
    70%
    60%
    90%
    ≥95%
    ≥95%
    ≥95%
    80%
    Temperature
    11°
    11°
    11°
    11°
    10°
    10°
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed
    W
    15
    WNW
    13
    NW
    11
    NNW
    11
    NNW
    12
    NNW
    13
    NNW
    15
    NNW
    18
    NNW
    20
    N
    22
    N
    24
    Wind gust (mph)
    22
    21
    20
    22
    25
    28
    33
    35
    37
    42
    44
    Visibility
    E
    E
    E
    E
    E
    E
    E
    E
    E
    G
    E
    Humidity
    77%
    78%
    77%
    76%
    75%
    75%
    75%
    78%
    80%
    84%
    83%
    UV 2 1 1 1 1 1 - - - - -
    Wind direction and speed
    15
    13
    11
    11
    12
    13
    15
    18
    19
    22
    24
    Height of waves offshore (m)
    1.8
    1.7
    1.6
    1.5
    1.4
    1.4
    1.3
    1.3
    1.3
    1.3
    1.3
    Period of waves offshore (s)
    7
    8
    8
    8
    8
    9
    9
    9
    9
    9
    9
    Direction of waves offshore
    Saturday (25 October 2025)
    Time
    00:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Light shower night Partly cloudy night Cloudy Light shower night Light shower night Light shower night Light shower night Light shower night Light shower day Light shower day Heavy shower day Light shower day Light shower day Light shower day Heavy shower day Light shower day Light shower day Light shower day Light shower night Heavy shower night Light shower night Heavy shower night Light shower night Light shower night
    Chance of precipitation
    60%
    40%
    50%
    60%
    70%
    70%
    80%
    90%
    90%
    90%
    90%
    90%
    90%
    90%
    90%
    80%
    90%
    90%
    90%
    90%
    ≥95%
    90%
    90%
    80%
    Temperature (°C)
    10°
    10°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    N
    26
    N
    27
    NNW
    27
    N
    27
    NNW
    27
    NNW
    27
    NNW
    27
    NNW
    26
    NNW
    25
    NNW
    25
    NNW
    25
    NNW
    24
    NNW
    24
    NNW
    24
    NNW
    25
    NNW
    25
    NW
    25
    NW
    24
    NW
    26
    NW
    27
    NW
    27
    NW
    26
    NNW
    25
    NNW
    24
    Wind gust (mph)
    46
    47
    46
    47
    49
    49
    48
    48
    48
    47
    48
    46
    45
    46
    44
    44
    44
    43
    44
    45
    46
    46
    45
    44
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    77%
    74%
    73%
    72%
    69%
    70%
    67%
    71%
    70%
    74%
    67%
    71%
    69%
    65%
    68%
    67%
    68%
    71%
    71%
    69%
    71%
    68%
    68%
    69%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 1 - - - - - -
    Wind direction and speed (mph)
    27
    27
    27
    27
    27
    27
    27
    26
    25
    25
    25
    23
    23
    24
    24
    25
    25
    25
    26
    27
    28
    27
    26
    25
    Height of waves offshore (m)
    1.3
    1.4
    1.4
    1.5
    1.6
    1.6
    1.6
    1.6
    1.6
    1.6
    1.6
    1.6
    1.6
    1.6
    1.5
    1.5
    1.4
    1.4
    1.4
    1.3
    1.3
    1.4
    1.4
    1.4
    Period of waves offshore (s)
    7
    7
    6
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    7
    6
    6
    6
    6
    6
    6
    6
    Direction of waves offshore
    Sunday (26 October 2025)
    Time
    00:00
    01:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Light shower night Light shower night Light shower night Light shower night Light shower night Light shower night Cloudy Cloudy Overcast Overcast Light rain Light rain Light rain Heavy rain Heavy rain Heavy rain Light rain Light rain Light shower night Light shower night Light shower night Light shower night Overcast Cloudy Cloudy
    Chance of precipitation
    80%
    70%
    70%
    70%
    60%
    50%
    40%
    50%
    40%
    40%
    60%
    80%
    80%
    90%
    90%
    80%
    80%
    70%
    60%
    70%
    50%
    50%
    50%
    40%
    40%
    Temperature (°C)
    10°
    10°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    11°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    NNW
    25
    NW
    25
    NW
    25
    NW
    24
    NW
    24
    NW
    24
    NW
    23
    NW
    23
    NW
    22
    WNW
    21
    WNW
    20
    W
    21
    W
    21
    W
    22
    WSW
    23
    WSW
    26
    WSW
    27
    W
    28
    W
    29
    W
    29
    WNW
    30
    WNW
    31
    WNW
    31
    WNW
    31
    WNW
    31
    Wind gust (mph)
    42
    41
    41
    41
    39
    37
    38
    36
    34
    32
    32
    32
    32
    33
    35
    36
    40
    42
    43
    42
    43
    43
    43
    41
    42
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    VG
    M
    M
    M
    M
    G
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    68%
    66%
    66%
    65%
    66%
    65%
    66%
    66%
    66%
    67%
    68%
    77%
    82%
    84%
    85%
    86%
    87%
    86%
    84%
    83%
    81%
    78%
    77%
    76%
    76%
    UV - - - - - - - - 1 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    25
    25
    25
    24
    24
    24
    23
    23
    22
    21
    21
    21
    21
    22
    23
    25
    27
    28
    28
    28
    30
    30
    30
    30
    30
    Height of waves offshore (m)
    1.4
    1.4
    1.3
    1.3
    1.3
    1.4
    1.4
    1.4
    1.4
    1.3
    1.2
    1.2
    1.1
    1.1
    1.2
    1.3
    1.5
    1.7
    1.7
    1.9
    2.0
    2.0
    2.1
    2.1
    2.1
    Period of waves offshore (s)
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    5
    5
    5
    5
    6
    6
    6
    6
    6
    7
    7
    7
    7
    Direction of waves offshore
    Monday (27 October 2025)
    Time
    00:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Cloudy Cloudy Cloudy Cloudy Cloudy Partly cloudy night Cloudy Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
    Chance of precipitation
    50%
    40%
    40%
    40%
    30%
    40%
    40%
    40%
    40%
    40%
    40%
    40%
    30%
    40%
    40%
    30%
    30%
    30%
    40%
    30%
    30%
    30%
    30%
    20%
    Temperature (°C)
    11°
    11°
    11°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    10°
    11°
    11°
    11°
    11°
    11°
    11°
    10°
    10°
    10°
    10°
    10°
    10°
    11°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    WNW
    31
    WNW
    31
    WNW
    31
    WNW
    29
    WNW
    28
    WNW
    28
    NW
    27
    NW
    27
    NW
    26
    NW
    24
    NW
    23
    NW
    22
    NW
    21
    NW
    21
    WNW
    21
    WNW
    20
    WNW
    19
    WNW
    19
    WNW
    18
    W
    19
    W
    20
    W
    21
    W
    21
    W
    23
    Wind gust (mph)
    43
    42
    42
    42
    42
    42
    40
    39
    37
    35
    33
    30
    27
    26
    25
    23
    21
    21
    21
    24
    24
    24
    24
    26
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    Humidity
    76%
    76%
    75%
    75%
    74%
    72%
    73%
    74%
    75%
    73%
    68%
    71%
    67%
    67%
    68%
    67%
    67%
    66%
    67%
    67%
    67%
    69%
    69%
    71%
    UV - - - - - - - 1 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    30
    30
    29
    28
    28
    27
    26
    26
    26
    25
    24
    23
    22
    22
    22
    21
    20
    20
    19
    18
    19
    19
    20
    21
    Height of waves offshore (m)
    2.1
    2.2
    2.2
    2.0
    1.9
    1.8
    1.7
    1.6
    1.5
    1.4
    1.4
    1.3
    1.3
    1.2
    1.1
    1.0
    1.0
    1.0
    1.0
    1.1
    1.2
    1.3
    1.4
    1.6
    Period of waves offshore (s)
    7
    7
    7
    7
    7
    7
    7
    6
    6
    6
    6
    6
    6
    5
    5
    5
    5
    5
    5
    5
    5
    5
    6
    6
    Direction of waves offshore
    Tuesday (28 October 2025)
    Time
    00:00
    01:00
    02:00
    03:00
    04:00
    05:00
    06:00
    07:00
    08:00
    09:00
    10:00
    11:00
    12:00
    13:00
    14:00
    15:00
    16:00
    17:00
    18:00
    19:00
    20:00
    21:00
    22:00
    23:00
    Weather symbols Cloudy Overcast Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Light shower day Sunny intervals Sunny intervals Sunny intervals Sunny intervals Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night Partly cloudy night
    Chance of precipitation
    20%
    30%
    40%
    40%
    30%
    40%
    40%
    30%
    30%
    30%
    40%
    50%
    50%
    50%
    50%
    50%
    50%
    50%
    40%
    30%
    30%
    20%
    30%
    30%
    Temperature (°C)
    11°
    11°
    11°
    11°
    11°
    11°
    12°
    11°
    11°
    11°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    12°
    11°
    11°
    11°
    11°
    11°
    11°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    WSW
    23
    WSW
    24
    WSW
    25
    WSW
    26
    WSW
    26
    WSW
    26
    WSW
    27
    WSW
    27
    WSW
    28
    WSW
    27
    WSW
    27
    WSW
    27
    WSW
    26
    WSW
    26
    WSW
    26
    WSW
    25
    WSW
    25
    WSW
    25
    WSW
    24
    WSW
    25
    WSW
    26
    WSW
    26
    WSW
    26
    WSW
    26
    Wind gust (mph)
    28
    28
    26
    28
    30
    34
    34
    34
    35
    35
    36
    35
    35
    35
    33
    34
    34
    32
    33
    32
    32
    31
    32
    32
    Visibility (description)
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    E
    VG
    VG
    Humidity
    74%
    76%
    80%
    77%
    78%
    77%
    78%
    78%
    77%
    77%
    77%
    77%
    78%
    76%
    75%
    73%
    74%
    71%
    71%
    70%
    70%
    70%
    72%
    73%
    UV - - - - - - - 1 1 1 1 1 1 1 1 1 1 - - - - - - -
    Wind direction and speed (mph)
    22
    22
    23
    24
    24
    24
    25
    25
    26
    26
    26
    25
    25
    25
    24
    24
    24
    24
    23
    24
    24
    25
    24
    25
    Height of waves offshore (m)
    1.7
    1.8
    1.8
    1.9
    1.9
    2.0
    1.9
    1.8
    1.8
    1.7
    1.6
    1.7
    1.7
    1.7
    1.7
    1.7
    1.6
    1.6
    1.6
    1.6
    1.6
    1.6
    1.6
    1.6
    Period of waves offshore (s)
    6
    6
    6
    6
    7
    7
    7
    7
    7
    7
    7
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    6
    Direction of waves offshore
    Wednesday (29 October 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Partly cloudy night Partly cloudy night Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
    Chance of precipitation
    30%
    30%
    30%
    40%
    40%
    40%
    40%
    40%
    Temperature (°C)
    10°
    10°
    10°
    11°
    12°
    12°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    WSW
    26
    WSW
    25
    WSW
    22
    WSW
    22
    WSW
    20
    WSW
    18
    WSW
    17
    WSW
    16
    Wind gust (mph)
    32
    31
    30
    26
    23
    21
    18
    18
    Visibility (description)
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    VG
    Humidity
    74%
    75%
    76%
    76%
    74%
    75%
    75%
    77%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    25
    24
    22
    22
    20
    18
    17
    16
    Height of waves offshore (m)
    1.0
    0.7
    0.6
    0.8
    1.1
    Period of waves offshore (s)
    6
    6
    6
    6
    5
    Direction of waves offshore
    Thursday (30 October 2025)
    Time
    00:00
    03:00
    06:00
    09:00
    12:00
    15:00
    18:00
    21:00
    Weather symbols Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Partly cloudy night Partly cloudy night
    Chance of precipitation
    30%
    40%
    40%
    40%
    40%
    40%
    30%
    30%
    Temperature (°C)
    10°
    10°
    11°
    12°
    12°
    10°
    10°
    Feels like temperature (°C)
    Wind direction and speed (mph)
    SW
    16
    SSW
    16
    S
    16
    SE
    17
    SE
    18
    S
    18
    SSW
    18
    SSW
    18
    Wind gust (mph)
    18
    19
    20
    19
    20
    20
    18
    19
    Visibility (description)
    VG
    G
    G
    G
    VG
    VG
    VG
    VG
    Humidity
    78%
    79%
    82%
    82%
    79%
    77%
    75%
    76%
    UV - - - 1 1 1 - -
    Wind direction and speed (mph)
    16
    Height of waves offshore (m)
    Period of waves offshore (s)
    Direction of waves offshore

    Tide times

    Friday 24 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 24 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 24 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Friday 24 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 25 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 25 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 25 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Saturday 25 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 26 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 26 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 26 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Sunday 26 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 27 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 27 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 27 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Monday 27 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 28 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 28 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 28 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Tuesday 28 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 29 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 29 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 29 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Wednesday 29 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 30 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 30 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 30 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Tide times

    Thursday 30 October

    Tide times and heights are from Porth Trecastell tidal station which is 0.5 miles away. So times may be different at this beach. What does this mean?

    Contains ADMIRALTY® tidal data: © Crown Copyright and database right.

    Porth Trecastell (Beach) weather map

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    Wales weather forecast

    Headline:

    Heavy showers and windy to start. Feeling colder.

    Today:

    Often cloudy with showers, these heavy at times and merging into longer spells of rain. A windy start, but winds easing inland by the afternoon. Feeling rather cold in the wind. Maximum temperature 12 °C.

    Tonight:

    Showers easing for a time this evening with showers becoming mostly confined to the west overnight. Turning colder with a brisk northerly wind. Minimum temperature 2 °C.

    Saturday:

    A mixture of sunny spells and a scattering of showers, some of these on the heavy side. Feeling rather cold especially when exposed to the strong northerly winds. Maximum temperature 11 °C.

    Outlook for Sunday to Tuesday:

    A chilly start to Sunday with sunny spells but turning cloudier by the evening with outbreaks of rain. Showers following on Monday, drier on Tuesday. Rather cold and often breezy.

    Updated:

    UK long range weather forecast

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