Hourly Weather Forecast - Illiopolis, IL

12 AM
31°F
30%
14mph
WNW
30% Chance of Flurries
Humidity
65%
Feels like
21°F
Dew Point
21°F
1 AM
30°F
30%
14mph
WNW
30% Chance Snow Showers
Humidity
66%
Feels like
19°F
Dew Point
20°F
2 AM
28°F
0%
13mph
WNW
Partly Cloudy
Humidity
66%
Feels like
17°F
Dew Point
18°F
3 AM
26°F
0%
13mph
WNW
Mostly Clear
Humidity
66%
Feels like
15°F
Dew Point
16°F
4 AM
24°F
0%
12mph
WNW
Mostly Clear
Humidity
67%
Feels like
13°F
Dew Point
15°F
5 AM
23°F
0%
11mph
WNW
Mostly Clear
Humidity
67%
Feels like
11°F
Dew Point
13°F
6 AM
22°F
0%
11mph
WNW
Partly Cloudy
Humidity
67%
Feels like
10°F
Dew Point
12°F
7 AM
21°F
0%
10mph
WNW
Mostly Clear
Humidity
65%
Feels like
10°F
Dew Point
11°F
7:13 AM
8 AM
21°F
0%
10mph
WNW
Mostly Sunny
Humidity
61%
Feels like
10°F
Dew Point
10°F
9 AM
22°F
0%
10mph
WNW
Sunny
Humidity
58%
Feels like
11°F
Dew Point
9°F
10 AM
24°F
0%
10mph
WNW
Mostly Sunny
Humidity
54%
Feels like
13°F
Dew Point
9°F
11 AM
26°F
0%
11mph
WNW
Mostly Sunny
Humidity
50%
Feels like
15°F
Dew Point
10°F
12 PM
27°F
0%
11mph
WNW
Partly Cloudy
Humidity
46%
Feels like
17°F
Dew Point
10°F
1 PM
28°F
0%
11mph
W
Mostly Sunny
Humidity
44%
Feels like
19°F
Dew Point
9°F
2 PM
29°F
0%
11mph
WNW
Mostly Sunny
Humidity
42%
Feels like
19°F
Dew Point
9°F
3 PM
29°F
0%
10mph
WNW
Mostly Sunny
Humidity
42%
Feels like
20°F
Dew Point
9°F
4 PM
28°F
0%
9mph
WNW
Sunny
Humidity
44%
Feels like
20°F
Dew Point
9°F
5 PM
27°F
0%
6mph
W
Sunny
Humidity
47%
Feels like
20°F
Dew Point
9°F
5:04 PM
6 PM
25°F
0%
5mph
W
Clear
Humidity
50%
Feels like
20°F
Dew Point
10°F
7 PM
24°F
0%
4mph
WNW
Clear
Humidity
53%
Feels like
19°F
Dew Point
10°F
8 PM
23°F
0%
4mph
WNW
Clear
Humidity
55%
Feels like
18°F
Dew Point
10°F
9 PM
22°F
0%
4mph
WNW
Clear
Humidity
57%
Feels like
16°F
Dew Point
10°F
10 PM
22°F
0%
5mph
WNW
Clear
Humidity
58%
Feels like
15°F
Dew Point
10°F
11 PM
21°F
0%
6mph
WNW
Clear
Humidity
59%
Feels like
13°F
Dew Point
9°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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