Decatur (United States of America) weather
Find a forecast
Forecast days
-
Maximum daytime temperature: -6° Celsius; Minimum nighttime temperature: -15° Celsius;
Maximum daytime temperature: -6° Celsius; Minimum nighttime temperature: -15° Celsius; -
Maximum daytime temperature: -7° Celsius; Minimum nighttime temperature: -14° Celsius;
Maximum daytime temperature: -7° Celsius; Minimum nighttime temperature: -14° Celsius;
-
Maximum daytime temperature: -9° Celsius; Minimum nighttime temperature: -16° Celsius;
Maximum daytime temperature: -9° Celsius; Minimum nighttime temperature: -16° Celsius; -
Maximum daytime temperature: -9° Celsius; Minimum nighttime temperature: -13° Celsius;
Maximum daytime temperature: -9° Celsius; Minimum nighttime temperature: -13° Celsius;
-
Maximum daytime temperature: -8° Celsius; Minimum nighttime temperature: -15° Celsius;
Maximum daytime temperature: -8° Celsius; Minimum nighttime temperature: -15° Celsius;
-
Maximum daytime temperature: -6° Celsius; Minimum nighttime temperature: -7° Celsius;
Maximum daytime temperature: -6° Celsius; Minimum nighttime temperature: -7° Celsius;
-
Maximum daytime temperature: -3° Celsius; Minimum nighttime temperature: -9° Celsius;
Maximum daytime temperature: -3° Celsius; Minimum nighttime temperature: -9° Celsius;
Partly cloudy changing to clear by nighttime.
Sunrise:
Sunset:
M UV
No pollution data.
No pollen data.
7 day forecast for Decatur
Today (27 January 2026)
| Time |
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%
|
| Temperature |
-9°
|
-9°
|
-10°
|
-12°
|
-12°
|
-14°
|
-15°
|
| Feels like temperature (°C) |
-15°
|
-15°
|
-16°
|
-17°
|
-18°
|
-19°
|
-20°
|
| Wind direction and speed |
NW
9
|
NW
8
|
NW
7
|
NW
6
|
WNW
6
|
WNW
6
|
W
6
|
| Wind gust (mph) |
16
|
12
|
11
|
10
|
9
|
8
|
8
|
| Visibility |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
68%
|
73%
|
73%
|
74%
|
74%
|
75%
|
75%
|
| UV | 1 | - | - | - | - | - | - |
Wednesday (28 January 2026)
| 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°
|
-15°
|
-15°
|
-15°
|
-15°
|
-15°
|
-15°
|
-14°
|
-12°
|
-11°
|
-10°
|
-9°
|
-8°
|
-7°
|
-7°
|
-7°
|
-9°
|
-10°
|
-10°
|
-11°
|
-11°
|
-11°
|
-12°
|
| Feels like temperature (°C) |
-21°
|
-21°
|
-21°
|
-21°
|
-21°
|
-21°
|
-21°
|
-21°
|
-20°
|
-19°
|
-17°
|
-16°
|
-16°
|
-15°
|
-14°
|
-13°
|
-13°
|
-14°
|
-15°
|
-16°
|
-17°
|
-17°
|
-17°
|
-18°
|
| Wind direction and speed (mph) |
W
6
|
W
6
|
W
6
|
W
6
|
W
6
|
W
6
|
WSW
6
|
WSW
6
|
WSW
7
|
W
8
|
W
9
|
W
10
|
W
11
|
W
12
|
WNW
12
|
WNW
10
|
W
8
|
W
7
|
W
7
|
W
7
|
W
7
|
W
7
|
WNW
7
|
WNW
6
|
| Wind gust (mph) |
8
|
9
|
10
|
10
|
10
|
10
|
10
|
12
|
14
|
16
|
18
|
20
|
21
|
21
|
21
|
18
|
13
|
11
|
11
|
11
|
11
|
11
|
11
|
10
|
| 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 |
75%
|
75%
|
75%
|
75%
|
76%
|
76%
|
76%
|
76%
|
76%
|
75%
|
74%
|
74%
|
74%
|
74%
|
72%
|
71%
|
73%
|
75%
|
76%
|
76%
|
76%
|
75%
|
76%
|
76%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 2 | 3 | 4 | 4 | 3 | 2 | 1 | 1 | 1 | - | - | - | - | - | - |
Thursday (29 January 2026)
| 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) |
-13°
|
-13°
|
-13°
|
-14°
|
-14°
|
-13°
|
-13°
|
-13°
|
-12°
|
-11°
|
-11°
|
-10°
|
-10°
|
-9°
|
-9°
|
-9°
|
-9°
|
-10°
|
-11°
|
-12°
|
-11°
|
-13°
|
-12°
|
-13°
|
| Feels like temperature (°C) |
-18°
|
-19°
|
-19°
|
-19°
|
-19°
|
-17°
|
-17°
|
-17°
|
-16°
|
-16°
|
-15°
|
-14°
|
-13°
|
-13°
|
-13°
|
-13°
|
-12°
|
-13°
|
-14°
|
-15°
|
-14°
|
-16°
|
-16°
|
-17°
|
| Wind direction and speed (mph) |
NW
6
|
NW
6
|
NNW
6
|
N
5
|
N
5
|
N
4
|
NNW
4
|
NNW
4
|
N
4
|
N
5
|
N
5
|
NNW
4
|
NW
4
|
NW
4
|
WNW
4
|
WNW
4
|
NW
4
|
NW
3
|
NW
3
|
NW
3
|
NNW
3
|
NNW
4
|
NNW
4
|
NW
4
|
| Wind gust (mph) |
10
|
9
|
9
|
8
|
7
|
6
|
6
|
7
|
9
|
10
|
10
|
9
|
9
|
10
|
9
|
9
|
7
|
5
|
5
|
5
|
5
|
6
|
6
|
6
|
| 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 |
75%
|
76%
|
76%
|
77%
|
79%
|
80%
|
81%
|
81%
|
78%
|
77%
|
76%
|
75%
|
75%
|
75%
|
74%
|
74%
|
74%
|
77%
|
83%
|
84%
|
82%
|
83%
|
83%
|
83%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 2 | 2 | 3 | 3 | 2 | 2 | 1 | 1 | 1 | - | - | - | - | - | - |
Friday (30 January 2026)
| 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%
|
10%
|
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
10%
|
<5%
|
<5%
|
10%
|
10%
|
10%
|
| Temperature (°C) |
-14°
|
-14°
|
-14°
|
-14°
|
-14°
|
-15°
|
-15°
|
-15°
|
-14°
|
-13°
|
-12°
|
-11°
|
-10°
|
-10°
|
-9°
|
-9°
|
-9°
|
-10°
|
-10°
|
-11°
|
-11°
|
-11°
|
-11°
|
-12°
|
| Feels like temperature (°C) |
-18°
|
-19°
|
-19°
|
-19°
|
-20°
|
-20°
|
-21°
|
-21°
|
-20°
|
-19°
|
-18°
|
-17°
|
-17°
|
-16°
|
-16°
|
-15°
|
-15°
|
-15°
|
-16°
|
-16°
|
-17°
|
-17°
|
-18°
|
-19°
|
| Wind direction and speed (mph) |
WNW
4
|
WNW
4
|
NW
5
|
NNW
5
|
N
6
|
N
6
|
N
6
|
N
6
|
N
5
|
N
6
|
N
8
|
N
8
|
N
8
|
N
8
|
N
9
|
N
9
|
N
9
|
N
7
|
N
7
|
NNW
6
|
NNW
7
|
NNW
8
|
NNW
9
|
NNW
9
|
| Wind gust (mph) |
7
|
8
|
8
|
9
|
9
|
10
|
10
|
10
|
12
|
15
|
16
|
17
|
17
|
17
|
17
|
16
|
15
|
13
|
13
|
12
|
14
|
16
|
16
|
16
|
| 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 |
82%
|
82%
|
81%
|
80%
|
79%
|
79%
|
79%
|
79%
|
78%
|
76%
|
76%
|
76%
|
76%
|
75%
|
76%
|
75%
|
76%
|
77%
|
78%
|
78%
|
77%
|
78%
|
76%
|
76%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 2 | 3 | 4 | 3 | 3 | 2 | 1 | 1 | 1 | - | - | - | - | - | - |
Saturday (31 January 2026)
| 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
|
21:00
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Chance of precipitation |
10%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
-12°
|
-12°
|
-12°
|
-13°
|
-13°
|
-13°
|
-13°
|
-13°
|
-12°
|
-11°
|
-11°
|
-10°
|
-9°
|
-9°
|
-8°
|
-8°
|
-8°
|
-9°
|
-10°
|
-12°
|
| Feels like temperature (°C) |
-19°
|
-20°
|
-20°
|
-20°
|
-20°
|
-20°
|
-20°
|
-20°
|
-20°
|
-19°
|
-19°
|
-17°
|
-17°
|
-15°
|
-15°
|
-14°
|
-14°
|
-15°
|
-16°
|
-17°
|
| Wind direction and speed (mph) |
NNW
9
|
NNW
9
|
NW
10
|
NW
10
|
NW
10
|
NW
10
|
NW
10
|
NW
10
|
NW
10
|
NW
11
|
NW
11
|
NW
11
|
NW
11
|
NW
10
|
NW
9
|
NW
9
|
NW
8
|
WNW
6
|
W
6
|
W
6
|
| Wind gust (mph) |
17
|
17
|
17
|
18
|
18
|
18
|
18
|
18
|
19
|
21
|
21
|
20
|
20
|
18
|
17
|
16
|
13
|
10
|
10
|
10
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
75%
|
76%
|
75%
|
75%
|
74%
|
75%
|
74%
|
74%
|
74%
|
74%
|
75%
|
77%
|
78%
|
79%
|
| UV | - | - | - | - | - | - | - | 1 | 1 | 2 | 3 | 4 | 4 | 3 | 2 | 1 | 1 | 1 | - | - |
Sunday (1 February 2026)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
 |
|
| Chance of precipitation |
<5%
|
<5%
|
<5%
|
<5%
|
10%
|
30%
|
40%
|
40%
|
| Temperature (°C) |
-13°
|
-14°
|
-14°
|
-12°
|
-7°
|
-6°
|
-7°
|
-7°
|
| Feels like temperature (°C) |
-18°
|
-19°
|
-20°
|
-18°
|
-13°
|
-12°
|
-13°
|
-12°
|
| Wind direction and speed (mph) |
WSW
5
|
WSW
6
|
SW
6
|
SSW
7
|
SSW
9
|
SSW
9
|
SSW
8
|
SSW
8
|
| Wind gust (mph) |
9
|
11
|
12
|
17
|
18
|
18
|
15
|
13
|
| Visibility (description) |
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
VG
|
M
|
| Humidity |
82%
|
83%
|
82%
|
75%
|
75%
|
78%
|
87%
|
90%
|
| UV | - | - | - | 2 | 4 | 1 | - | - |
Monday (2 February 2026)
| Time |
00:00
|
03:00
|
06:00
|
09:00
|
12:00
|
15:00
|
18:00
|
21:00
|
|---|---|---|---|---|---|---|---|---|
| Weather symbols | |
|
|
|
|
|
|
|
| Chance of precipitation |
30%
|
20%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
<5%
|
| Temperature (°C) |
-7°
|
-6°
|
-6°
|
-5°
|
-4°
|
-4°
|
-5°
|
-5°
|
| Feels like temperature (°C) |
-12°
|
-11°
|
-11°
|
-10°
|
-9°
|
-8°
|
-8°
|
-9°
|
| Wind direction and speed (mph) |
SW
7
|
WSW
7
|
WNW
7
|
WNW
8
|
WNW
9
|
WNW
8
|
W
5
|
WSW
5
|
| Wind gust (mph) |
13
|
13
|
14
|
17
|
16
|
15
|
10
|
10
|
| Visibility (description) |
M
|
M
|
M
|
G
|
VG
|
VG
|
VG
|
VG
|
| Humidity |
92%
|
91%
|
89%
|
85%
|
80%
|
78%
|
85%
|
86%
|
| UV | - | - | - | 1 | 3 | 1 | - | - |
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Forecast
Forecast for 5pm (UTC-6) Tuesday
Updated 18:18 (UTC) on Tue 27 Jan 2026
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Nearest forecasts
- Springfield Capital 42.5 miles
- Bloomington - Central Illinois 45.0 miles
- Peoria Regional 72.1 miles
- Terre Haute - Hulman Field 87.6 miles
- Greater Kankakee 101 miles
- St Louis 109 miles
- St.Louis - Lambert International 109 miles
- Spirit of St. Louis 125 miles
- Quincy 133 miles
- Aurora Municipal 136 miles
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