Hourly Weather Forecast - Decatur, IL

7 AM
30°F
10%
14mph
SSW
Mostly Cloudy
Humidity
68%
Feels like
19°F
Dew Point
21°F
7:15 AM
8 AM
31°F
30%
14mph
SW
30% Chance of Flurries
Humidity
71%
Feels like
21°F
Dew Point
23°F
9 AM
33°F
30%
14mph
WSW
30% Chance of Flurries
Humidity
73%
Feels like
23°F
Dew Point
26°F
10 AM
35°F
0%
14mph
WSW
Mostly Cloudy
Humidity
72%
Feels like
26°F
Dew Point
27°F
11 AM
38°F
0%
15mph
WSW
Cloudy
Humidity
70%
Feels like
29°F
Dew Point
29°F
12 PM
40°F
0%
15mph
W
Mostly Cloudy
Humidity
68%
Feels like
31°F
Dew Point
30°F
1 PM
40°F
0%
15mph
W
Mostly Cloudy
Humidity
66%
Feels like
32°F
Dew Point
30°F
2 PM
40°F
0%
15mph
W
Mostly Cloudy
Humidity
66%
Feels like
32°F
Dew Point
29°F
3 PM
39°F
0%
15mph
W
Mostly Cloudy
Humidity
66%
Feels like
30°F
Dew Point
29°F
4 PM
37°F
0%
14mph
WSW
Mostly Cloudy
Humidity
70%
Feels like
29°F
Dew Point
28°F
4:56 PM
5 PM
36°F
30%
13mph
WSW
30% Chance Snow Showers
Humidity
72%
Feels like
27°F
Dew Point
28°F
6 PM
35°F
20%
13mph
WSW
Mostly Cloudy
Humidity
71%
Feels like
26°F
Dew Point
26°F
7 PM
33°F
30%
12mph
WSW
30% Chance of Snow
Humidity
75%
Feels like
24°F
Dew Point
26°F
8 PM
32°F
30%
12mph
W
30% Chance of Snow
Humidity
76%
Feels like
23°F
Dew Point
25°F
9 PM
31°F
30%
12mph
W
30% Chance of Snow
Humidity
75%
Feels like
22°F
Dew Point
24°F
10 PM
31°F
30%
12mph
W
30 % Chance of Heavy Snow
Humidity
75%
Feels like
21°F
Dew Point
23°F
11 PM
30°F
30%
13mph
W
30% Chance of Snow
Humidity
74%
Feels like
19°F
Dew Point
22°F

Snow Forecast through Saturday

Multiple Snowy Systems Hit Great Lakes, Northeast

An exiting low pressure system will produce additional light snow across Maine while a new disturbance will track across the Upper Midwest and Great Lakes.

Friday's Weather Outlook

Today'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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