Hourly Weather Forecast - Decatur, IL

12 AM
38°F
10%
10mph
NW
Partly Cloudy
Humidity
85%
Feels like
32°F
Dew Point
34°F
1 AM
37°F
10%
10mph
NW
Partly Cloudy
Humidity
87%
Feels like
30°F
Dew Point
33°F
2 AM
35°F
10%
9mph
NNW
Partly Cloudy
Humidity
87%
Feels like
28°F
Dew Point
32°F
3 AM
33°F
10%
9mph
NNW
Partly Cloudy
Humidity
89%
Feels like
26°F
Dew Point
31°F
4 AM
32°F
10%
9mph
NNW
Partly Cloudy
Humidity
90%
Feels like
24°F
Dew Point
29°F
5 AM
30°F
10%
9mph
NNW
Partly Cloudy
Humidity
91%
Feels like
22°F
Dew Point
28°F
6 AM
29°F
10%
9mph
N
Partly Cloudy
Humidity
92%
Feels like
21°F
Dew Point
27°F
7 AM
29°F
10%
10mph
N
Partly Cloudy
Humidity
91%
Feels like
21°F
Dew Point
27°F
7:13 AM
8 AM
31°F
10%
10mph
NNE
Partly Cloudy
Humidity
86%
Feels like
22°F
Dew Point
27°F

Rainfall Totals Through Wednesday A.M.

Heavy Rain Returns to Deluge Pacific Northwest

Another atmospheric river will hit the Pacific Northwest with heavy rain and high winds.

Monday's Weather Outlook

Today's Weather Outlook

How to Measure Snow via NWS

How To Measure Snow

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

A person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

A strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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