Hourly Weather Forecast - Illiopolis, IL

12 AM
11°F
0%
4mph
SW
Mostly Cloudy
Humidity
51%
Feels like
3°F
Dew Point
-4°F
1 AM
10°F
0%
4mph
SW
Partly Cloudy
Humidity
53%
Feels like
2°F
Dew Point
-4°F
2 AM
10°F
0%
5mph
SW
Mostly Clear
Humidity
55%
Feels like
1°F
Dew Point
-4°F
3 AM
9°F
0%
5mph
SW
Clear
Humidity
56%
Feels like
0°F
Dew Point
-3°F
4 AM
9°F
0%
5mph
SW
Clear
Humidity
57%
Feels like
0°F
Dew Point
-3°F
5 AM
9°F
10%
5mph
SW
Clear
Humidity
58%
Feels like
0°F
Dew Point
-3°F
6 AM
9°F
0%
5mph
SW
Clear
Humidity
58%
Feels like
0°F
Dew Point
-2°F
7 AM
11°F
0%
6mph
SSW
Clear
Humidity
57%
Feels like
1°F
Dew Point
-1°F
7:14 AM
8 AM
13°F
0%
6mph
SSW
Sunny
Humidity
56%
Feels like
3°F
Dew Point
0°F
9 AM
15°F
0%
7mph
SSW
Mostly Sunny
Humidity
53%
Feels like
5°F
Dew Point
1°F
10 AM
18°F
0%
8mph
SSW
Mostly Sunny
Humidity
50%
Feels like
8°F
Dew Point
3°F
11 AM
22°F
0%
9mph
S
Partly Cloudy
Humidity
45%
Feels like
12°F
Dew Point
4°F
12 PM
25°F
0%
10mph
S
Mostly Cloudy
Humidity
42%
Feels like
15°F
Dew Point
5°F
1 PM
28°F
0%
11mph
SSW
Mostly Cloudy
Humidity
40%
Feels like
18°F
Dew Point
6°F
2 PM
29°F
0%
11mph
SSW
Partly Cloudy
Humidity
39%
Feels like
20°F
Dew Point
7°F
3 PM
30°F
0%
11mph
SSW
Partly Cloudy
Humidity
39%
Feels like
21°F
Dew Point
8°F
4 PM
29°F
0%
10mph
SSW
Partly Cloudy
Humidity
41%
Feels like
20°F
Dew Point
9°F
5 PM
27°F
0%
9mph
S
Partly Cloudy
Humidity
46%
Feels like
19°F
Dew Point
9°F
5:02 PM
6 PM
26°F
0%
9mph
S
Partly Cloudy
Humidity
49%
Feels like
17°F
Dew Point
10°F
7 PM
26°F
0%
10mph
S
Partly Cloudy
Humidity
50%
Feels like
17°F
Dew Point
10°F
8 PM
27°F
0%
12mph
S
Mostly Cloudy
Humidity
50%
Feels like
16°F
Dew Point
11°F
9 PM
27°F
0%
13mph
S
Cloudy
Humidity
50%
Feels like
16°F
Dew Point
11°F
10 PM
28°F
0%
15mph
S
Cloudy
Humidity
50%
Feels like
16°F
Dew Point
12°F
11 PM
28°F
0%
15mph
S
Cloudy
Humidity
50%
Feels like
17°F
Dew Point
12°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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