Hourly Weather Forecast - Illiopolis, IL

12 PM
41°F
0%
1mph
N
Partly Cloudy
Humidity
81%
Feels like
41°F
Dew Point
36°F
1 PM
42°F
0%
2mph
E
Partly Cloudy
Humidity
80%
Feels like
42°F
Dew Point
36°F
2 PM
42°F
0%
4mph
ESE
Partly Cloudy
Humidity
79%
Feels like
40°F
Dew Point
36°F
3 PM
42°F
0%
5mph
ESE
Mostly Sunny
Humidity
80%
Feels like
38°F
Dew Point
36°F
4 PM
40°F
0%
7mph
SE
Mostly Sunny
Humidity
82%
Feels like
36°F
Dew Point
35°F
4:33 PM
5 PM
39°F
0%
8mph
SE
Mostly Clear
Humidity
85%
Feels like
33°F
Dew Point
35°F
6 PM
38°F
0%
9mph
SE
Mostly Clear
Humidity
88%
Feels like
31°F
Dew Point
34°F
7 PM
37°F
0%
11mph
SSE
Partly Cloudy
Humidity
90%
Feels like
30°F
Dew Point
35°F
8 PM
38°F
0%
12mph
SSE
Hazy
Humidity
91%
Feels like
30°F
Dew Point
35°F
9 PM
38°F
0%
13mph
SSE
Partly Cloudy
Humidity
92%
Feels like
30°F
Dew Point
36°F
10 PM
39°F
0%
14mph
SSE
Partly Cloudy
Humidity
93%
Feels like
31°F
Dew Point
37°F
11 PM
40°F
0%
15mph
S
Partly Cloudy
Humidity
94%
Feels like
32°F
Dew Point
38°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

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

Wednesday'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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