Hourly Weather Forecast - Illiopolis, IL

12 AM
29°F
0%
16mph
S
Cloudy
Humidity
51%
Feels like
17°F
Dew Point
13°F
1 AM
30°F
0%
17mph
SSW
Cloudy
Humidity
52%
Feels like
18°F
Dew Point
14°F
2 AM
30°F
0%
17mph
SSW
Cloudy
Humidity
53%
Feels like
19°F
Dew Point
15°F
3 AM
31°F
0%
17mph
SSW
Cloudy
Humidity
56%
Feels like
20°F
Dew Point
17°F
4 AM
31°F
0%
17mph
SSW
Mostly Cloudy
Humidity
59%
Feels like
20°F
Dew Point
19°F
5 AM
31°F
0%
16mph
SSW
Partly Cloudy
Humidity
64%
Feels like
20°F
Dew Point
20°F
6 AM
31°F
0%
16mph
SW
Clear
Humidity
67%
Feels like
20°F
Dew Point
22°F
7 AM
31°F
0%
15mph
SW
Clear
Humidity
70%
Feels like
21°F
Dew Point
23°F
7:13 AM
8 AM
31°F
0%
15mph
WSW
Sunny
Humidity
71%
Feels like
21°F
Dew Point
23°F
9 AM
32°F
0%
16mph
W
Sunny
Humidity
71%
Feels like
21°F
Dew Point
24°F
10 AM
33°F
0%
16mph
W
Mostly Sunny
Humidity
69%
Feels like
22°F
Dew Point
24°F
11 AM
34°F
0%
16mph
W
Partly Cloudy
Humidity
64%
Feels like
23°F
Dew Point
23°F
12 PM
35°F
0%
16mph
W
Partly Cloudy
Humidity
61%
Feels like
24°F
Dew Point
22°F
1 PM
35°F
0%
16mph
W
Partly Cloudy
Humidity
57%
Feels like
26°F
Dew Point
22°F
2 PM
36°F
0%
16mph
W
Mostly Sunny
Humidity
54%
Feels like
26°F
Dew Point
21°F
3 PM
36°F
0%
15mph
W
Mostly Sunny
Humidity
53%
Feels like
27°F
Dew Point
20°F
4 PM
35°F
0%
12mph
WSW
Mostly Sunny
Humidity
55%
Feels like
26°F
Dew Point
20°F
5 PM
33°F
0%
9mph
WSW
Partly Cloudy
Humidity
60%
Feels like
25°F
Dew Point
20°F
5:03 PM
6 PM
31°F
0%
8mph
SW
Partly Cloudy
Humidity
63%
Feels like
24°F
Dew Point
20°F
7 PM
31°F
0%
9mph
SW
Mostly Cloudy
Humidity
64%
Feels like
22°F
Dew Point
20°F
8 PM
31°F
0%
11mph
SW
Mostly Cloudy
Humidity
64%
Feels like
21°F
Dew Point
20°F
9 PM
31°F
0%
12mph
SW
Mostly Cloudy
Humidity
64%
Feels like
21°F
Dew Point
20°F
10 PM
31°F
0%
12mph
WSW
Mostly Cloudy
Humidity
64%
Feels like
22°F
Dew Point
20°F
11 PM
31°F
30%
13mph
W
30% Chance of Flurries
Humidity
65%
Feels like
22°F
Dew Point
21°F

Snow Forecast through Sunday

Series of Weather Systems Cover Great Lakes, East in Snow

Two main areas of low pressure will produce snow in the Upper Midwest, Great Lakes and Eastern U.S.

Monday's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for January 15, 2026

Active Weather Creates Mix of Improvements, Degradations to Drought Depiction

Vehicle driving in wintry conditions

Prepare Your Car for Cold Weather

(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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