Hourly Weather Forecast - Illiopolis, IL

3 PM
41°F
0%
5mph
SE
Mostly Sunny
Humidity
79%
Feels like
38°F
Dew Point
35°F
4 PM
40°F
0%
7mph
SE
Mostly Sunny
Humidity
81%
Feels like
35°F
Dew Point
35°F
4:33 PM
5 PM
39°F
0%
8mph
SE
Mostly Clear
Humidity
84%
Feels like
33°F
Dew Point
34°F
6 PM
38°F
0%
9mph
SE
Mostly Clear
Humidity
86%
Feels like
31°F
Dew Point
34°F
7 PM
38°F
0%
11mph
SSE
Partly Cloudy
Humidity
87%
Feels like
30°F
Dew Point
34°F
8 PM
38°F
0%
12mph
SSE
Mostly Clear
Humidity
88%
Feels like
30°F
Dew Point
35°F
9 PM
38°F
0%
13mph
SSE
Partly Cloudy
Humidity
89%
Feels like
31°F
Dew Point
36°F
10 PM
39°F
0%
14mph
SSE
Partly Cloudy
Humidity
90%
Feels like
31°F
Dew Point
37°F
11 PM
41°F
0%
15mph
S
Partly Cloudy
Humidity
90%
Feels like
33°F
Dew Point
38°F

Rainfall and Snowfall Totals Through Thursday

Flooding Rain, Heavy Snow and Winds Slam Northwest, North-Central U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Thursday's Weather Outlook

Thursday'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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