Portsmouth (United States of America) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 17° Celsius;
Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 17° Celsius; -
Maximum daytime temperature: 22° Celsius; Minimum nighttime temperature: 14° Celsius;
Maximum daytime temperature: 22° Celsius; Minimum nighttime temperature: 14° Celsius; -
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 12° Celsius;
Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 12° Celsius;
-
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 11° Celsius;
Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 11° Celsius;
-
Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 15° Celsius;
Maximum daytime temperature: 23° Celsius; Minimum nighttime temperature: 15° Celsius;
-
Maximum daytime temperature: 25° Celsius; Minimum nighttime temperature: 16° Celsius;
Maximum daytime temperature: 25° Celsius; Minimum nighttime temperature: 16° Celsius;
-
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 13° Celsius;
Maximum daytime temperature: 21° Celsius; Minimum nighttime temperature: 13° Celsius;
Light rain changing to overcast by lunchtime.
Sunrise:
Sunset:
M UV
No pollution data.
No pollen data.
7 day forecast for Portsmouth
Today (14 October 2025)
| Time |
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 |  |
 |
|
|
|
|
|
|
|
|
 |
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
30%
|
50%
|
80%
|
90%
|
90%
|
90%
|
80%
|
80%
|
60%
|
30%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
10%
|
10%
|
<5%
|
<5%
|
| Temperature |
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
16°
|
16°
|
16°
|
16°
|
17°
|
17°
|
17°
|
18°
|
18°
|
18°
|
18°
|
19°
|
19°
|
19°
|
19°
|
19°
|
| Feels like temperature (°C) |
13°
|
13°
|
13°
|
13°
|
13°
|
14°
|
14°
|
14°
|
14°
|
15°
|
15°
|
15°
|
16°
|
16°
|
16°
|
16°
|
17°
|
17°
|
17°
|
17°
|
17°
|
17°
|
| Wind direction and speed |
NW
11
|
NW
11
|
NW
11
|
NW
11
|
NNW
11
|
NNW
12
|
NNW
12
|
NNW
13
|
N
13
|
N
13
|
N
13
|
N
13
|
N
13
|
N
13
|
N
12
|
N
12
|
N
11
|
N
11
|
N
10
|
N
10
|
N
10
|
N
10
|
| Wind gust (mph) |
23
|
24
|
24
|
25
|
26
|
27
|
29
|
29
|
29
|
29
|
30
|
30
|
30
|
29
|
28
|
26
|
25
|
24
|
23
|
23
|
22
|
21
|
| Visibility |
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
M
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
G
|
VG
|
VG
|
VG
|
| Humidity |
86%
|
88%
|
91%
|
92%
|
92%
|
92%
|
93%
|
93%
|
92%
|
91%
|
87%
|
85%
|
84%
|
83%
|
81%
|
79%
|
78%
|
78%
|
78%
|
78%
|
78%
|
77%
|
| UV | - | - | - | - | - | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 3 | 1 | 1 | 1 | 1 | - | - | - | - | - |
Wednesday (15 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 | |
|
|
|
|
|
 |
 |
|
|
|
|
 |
|
|
|
|
|
 |
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
18°
|
17°
|
17°
|
18°
|
18°
|
19°
|
19°
|
20°
|
21°
|
21°
|
21°
|
22°
|
21°
|
21°
|
20°
|
19°
|
19°
|
18°
|
| Feels like temperature (°C) |
17°
|
17°
|
17°
|
17°
|
17°
|
16°
|
16°
|
16°
|
16°
|
16°
|
17°
|
17°
|
17°
|
18°
|
19°
|
19°
|
19°
|
20°
|
20°
|
19°
|
19°
|
19°
|
18°
|
18°
|
| Wind direction and speed (mph) |
N
10
|
N
10
|
N
10
|
N
10
|
N
9
|
N
9
|
N
9
|
N
9
|
N
8
|
N
9
|
N
10
|
N
10
|
N
10
|
N
10
|
N
10
|
N
10
|
N
10
|
N
9
|
N
8
|
N
8
|
N
6
|
NNW
6
|
NW
5
|
NNW
6
|
| Wind gust (mph) |
21
|
21
|
21
|
21
|
21
|
21
|
20
|
19
|
21
|
22
|
23
|
23
|
23
|
24
|
24
|
24
|
23
|
21
|
19
|
15
|
12
|
12
|
12
|
14
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
77%
|
78%
|
79%
|
80%
|
81%
|
80%
|
81%
|
81%
|
80%
|
76%
|
74%
|
69%
|
65%
|
59%
|
56%
|
53%
|
51%
|
48%
|
52%
|
54%
|
56%
|
61%
|
64%
|
65%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 2 | 3 | 4 | 6 | 5 | 5 | 3 | 2 | 1 | 1 | - | - | - | - | - |
Thursday (16 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 | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
18°
|
18°
|
17°
|
17°
|
16°
|
16°
|
15°
|
15°
|
14°
|
14°
|
15°
|
15°
|
16°
|
16°
|
17°
|
17°
|
18°
|
18°
|
17°
|
17°
|
17°
|
16°
|
16°
|
15°
|
| Feels like temperature (°C) |
17°
|
17°
|
16°
|
15°
|
14°
|
14°
|
13°
|
13°
|
12°
|
12°
|
12°
|
13°
|
13°
|
13°
|
14°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
15°
|
14°
|
14°
|
| Wind direction and speed (mph) |
N
7
|
N
7
|
N
9
|
N
9
|
N
9
|
N
10
|
N
10
|
N
10
|
N
10
|
N
12
|
N
12
|
N
12
|
N
12
|
N
11
|
N
10
|
N
10
|
N
10
|
N
10
|
N
9
|
N
9
|
N
8
|
NNW
8
|
N
7
|
N
6
|
| Wind gust (mph) |
15
|
17
|
22
|
22
|
23
|
23
|
23
|
23
|
26
|
28
|
28
|
28
|
28
|
27
|
26
|
25
|
24
|
22
|
19
|
19
|
17
|
15
|
14
|
14
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
67%
|
69%
|
67%
|
65%
|
64%
|
62%
|
59%
|
59%
|
61%
|
58%
|
55%
|
55%
|
52%
|
46%
|
42%
|
41%
|
41%
|
41%
|
41%
|
42%
|
45%
|
51%
|
54%
|
56%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 2 | 3 | 5 | 6 | 6 | 5 | 3 | 2 | 1 | 1 | - | - | - | - | - |
Friday (17 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 | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
15°
|
15°
|
14°
|
14°
|
14°
|
13°
|
13°
|
13°
|
13°
|
13°
|
14°
|
15°
|
15°
|
16°
|
16°
|
17°
|
17°
|
17°
|
17°
|
16°
|
16°
|
16°
|
15°
|
15°
|
| Feels like temperature (°C) |
14°
|
13°
|
13°
|
13°
|
12°
|
12°
|
12°
|
11°
|
11°
|
12°
|
12°
|
13°
|
14°
|
14°
|
15°
|
15°
|
16°
|
16°
|
16°
|
15°
|
15°
|
15°
|
15°
|
15°
|
| Wind direction and speed (mph) |
N
7
|
N
7
|
N
7
|
N
7
|
N
8
|
N
7
|
N
7
|
N
7
|
NNW
6
|
NNW
7
|
N
8
|
N
8
|
N
8
|
N
8
|
N
8
|
N
7
|
N
6
|
N
6
|
N
5
|
NNW
5
|
NNW
5
|
NNW
4
|
WNW
3
|
WSW
3
|
| Wind gust (mph) |
14
|
15
|
15
|
16
|
15
|
15
|
15
|
15
|
16
|
19
|
20
|
21
|
21
|
20
|
19
|
18
|
17
|
14
|
12
|
11
|
10
|
8
|
7
|
7
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
58%
|
58%
|
57%
|
57%
|
58%
|
59%
|
61%
|
64%
|
65%
|
62%
|
56%
|
53%
|
49%
|
43%
|
43%
|
42%
|
41%
|
41%
|
46%
|
49%
|
53%
|
56%
|
58%
|
61%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 2 | 3 | 5 | 6 | 5 | 4 | 3 | 1 | 1 | 1 | - | - | - | - | - |
Saturday (18 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
|
23:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
14°
|
14°
|
13°
|
13°
|
13°
|
12°
|
12°
|
11°
|
12°
|
13°
|
15°
|
17°
|
19°
|
20°
|
21°
|
22°
|
23°
|
22°
|
22°
|
21°
|
20°
|
18°
|
| Feels like temperature (°C) |
14°
|
14°
|
13°
|
13°
|
12°
|
12°
|
11°
|
11°
|
11°
|
12°
|
14°
|
16°
|
17°
|
18°
|
20°
|
20°
|
21°
|
21°
|
20°
|
20°
|
19°
|
17°
|
| Wind direction and speed (mph) |
SW
3
|
SSW
3
|
SSW
4
|
SW
4
|
SW
4
|
SW
4
|
SW
4
|
SW
4
|
SW
4
|
SW
5
|
SW
5
|
SSW
6
|
SSW
6
|
SSW
6
|
SSW
6
|
SSW
8
|
SW
8
|
SSW
8
|
SSW
8
|
SSW
8
|
SSW
7
|
SSW
8
|
| Wind gust (mph) |
6
|
7
|
7
|
8
|
8
|
8
|
9
|
9
|
10
|
12
|
13
|
15
|
16
|
17
|
17
|
18
|
18
|
18
|
17
|
15
|
16
|
17
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
65%
|
66%
|
68%
|
72%
|
74%
|
77%
|
79%
|
78%
|
77%
|
73%
|
64%
|
57%
|
52%
|
44%
|
42%
|
42%
|
42%
|
43%
|
51%
|
55%
|
57%
|
67%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 2 | 3 | 5 | 6 | 5 | 4 | 3 | 1 | 1 | 1 | - | - | - |
Sunday (19 October 2025)
| Time |
02:00
|
05:00
|
08:00
|
11:00
|
14:00
|
17:00
|
20:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
20%
|
30%
|
| Temperature (°C) |
16°
|
15°
|
15°
|
20°
|
24°
|
25°
|
22°
|
20°
|
| Feels like temperature (°C) |
15°
|
14°
|
14°
|
18°
|
22°
|
23°
|
21°
|
19°
|
| Wind direction and speed (mph) |
SSW
8
|
SSW
8
|
SSW
8
|
SSW
10
|
SW
13
|
SW
12
|
SSW
10
|
WSW
10
|
| Wind gust (mph) |
16
|
17
|
23
|
30
|
30
|
25
|
23
|
23
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
73%
|
77%
|
78%
|
65%
|
52%
|
54%
|
65%
|
75%
|
| UV | - | - | 1 | 5 | 4 | 1 | - | - |
Monday (20 October 2025)
| Time |
02:00
|
05:00
|
08:00
|
11:00
|
14:00
|
17:00
|
20:00
|
23:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
30%
|
30%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
19°
|
17°
|
16°
|
18°
|
20°
|
20°
|
18°
|
17°
|
| Feels like temperature (°C) |
18°
|
16°
|
15°
|
16°
|
18°
|
18°
|
17°
|
16°
|
| Wind direction and speed (mph) |
W
9
|
WNW
8
|
WNW
7
|
NW
10
|
NW
9
|
NW
8
|
W
6
|
WSW
6
|
| Wind gust (mph) |
20
|
19
|
24
|
25
|
22
|
17
|
13
|
11
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
79%
|
83%
|
83%
|
61%
|
45%
|
43%
|
55%
|
63%
|
| UV | - | - | 1 | 5 | 4 | 1 | - | - |
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Forecast
Forecast for 02:00 (UTC-4), Tue
Updated 01:26 (UTC+1) on Tue 14 Oct 2025
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