Hourly Weather Forecast - Decatur, IL

12 AM
25°F
70%
14mph
S
70% Chance of Heavy Snow
Humidity
70%
Feels like
13°F
Dew Point
17°F
1 AM
25°F
40%
15mph
S
40% Chance of Heavy Snow
Humidity
81%
Feels like
13°F
Dew Point
20°F
2 AM
26°F
20%
15mph
S
Mostly Cloudy
Humidity
81%
Feels like
14°F
Dew Point
21°F
3 AM
26°F
10%
15mph
S
Mostly Cloudy
Humidity
76%
Feels like
14°F
Dew Point
20°F
4 AM
27°F
10%
15mph
SSW
Mostly Cloudy
Humidity
74%
Feels like
15°F
Dew Point
20°F
5 AM
28°F
0%
15mph
SSW
Mostly Cloudy
Humidity
70%
Feels like
16°F
Dew Point
19°F
6 AM
29°F
10%
15mph
SSW
Mostly Cloudy
Humidity
68%
Feels like
18°F
Dew Point
19°F
7 AM
30°F
30%
14mph
SW
30% Chance of Flurries
Humidity
68%
Feels like
20°F
Dew Point
21°F
7:15 AM
8 AM
32°F
30%
15mph
SW
30% Chance of Flurries
Humidity
70%
Feels like
22°F
Dew Point
23°F
9 AM
34°F
30%
15mph
WSW
30% Chance of Snow
Humidity
70%
Feels like
24°F
Dew Point
25°F
10 AM
36°F
0%
15mph
WSW
Mostly Cloudy
Humidity
70%
Feels like
26°F
Dew Point
27°F
11 AM
38°F
0%
16mph
W
Mostly Cloudy
Humidity
67%
Feels like
29°F
Dew Point
28°F
12 PM
39°F
0%
16mph
W
Mostly Cloudy
Humidity
63%
Feels like
30°F
Dew Point
28°F
1 PM
39°F
0%
16mph
W
Mostly Cloudy
Humidity
62%
Feels like
31°F
Dew Point
28°F
2 PM
39°F
0%
16mph
W
Mostly Cloudy
Humidity
62%
Feels like
30°F
Dew Point
27°F
3 PM
38°F
10%
16mph
W
Mostly Cloudy
Humidity
64%
Feels like
29°F
Dew Point
27°F
4 PM
37°F
10%
15mph
W
Cloudy
Humidity
67%
Feels like
28°F
Dew Point
27°F
4:56 PM
5 PM
34°F
10%
14mph
WSW
Cloudy
Humidity
73%
Feels like
25°F
Dew Point
26°F
6 PM
32°F
20%
13mph
WSW
Cloudy
Humidity
76%
Feels like
22°F
Dew Point
25°F
7 PM
30°F
30%
12mph
WSW
30% Chance of Snow
Humidity
82%
Feels like
20°F
Dew Point
25°F
8 PM
30°F
30%
12mph
W
30% Chance of Snow
Humidity
79%
Feels like
20°F
Dew Point
24°F
9 PM
30°F
10%
13mph
W
Mostly Cloudy
Humidity
76%
Feels like
20°F
Dew Point
23°F
10 PM
30°F
30%
13mph
WNW
30% Chance of Snow
Humidity
72%
Feels like
19°F
Dew Point
22°F
11 PM
29°F
10%
14mph
WNW
Mostly Cloudy
Humidity
66%
Feels like
18°F
Dew Point
19°F

Snow Forecast through Saturday

Multiple Snowy Systems Hit Great Lakes, Northeast

As one disturbance exits New England tonight, another will be quick on its heels in the Great Lakes on Friday.

Friday's Weather Outlook

Friday's Weather Outlook

Weekend Weather Preview

Weekend Weather Preview

Weekly Drought Map for January 15, 2026

Active Weather Creates Mix of Improvements, Degradations to Drought Depiction

(Image provided by NOAA)

Polar Vortex: What Is It?

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

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