Hourly Weather Forecast - Caseyville, IL

12 AM
44°F
10%
5mph
S
Partly Cloudy
Humidity
91%
Feels like
41°F
Dew Point
42°F
1 AM
45°F
10%
5mph
S
Partly Cloudy
Humidity
93%
Feels like
42°F
Dew Point
43°F
2 AM
45°F
10%
4mph
S
Mostly Cloudy
Humidity
92%
Feels like
43°F
Dew Point
43°F
3 AM
46°F
10%
4mph
S
Mostly Cloudy
Humidity
93%
Feels like
44°F
Dew Point
44°F
4 AM
47°F
10%
4mph
S
Cloudy
Humidity
93%
Feels like
45°F
Dew Point
44°F
5 AM
46°F
10%
4mph
S
Cloudy
Humidity
96%
Feels like
45°F
Dew Point
45°F
6 AM
46°F
10%
4mph
S
Mostly Cloudy
Humidity
96%
Feels like
45°F
Dew Point
45°F
7 AM
47°F
20%
4mph
S
Mostly Cloudy
Humidity
97%
Feels like
45°F
Dew Point
46°F
7:15 AM
8 AM
49°F
20%
4mph
S
Mostly Cloudy
Humidity
97%
Feels like
48°F
Dew Point
48°F
9 AM
51°F
20%
4mph
SSW
Mostly Cloudy
Humidity
93%
Feels like
51°F
Dew Point
49°F
10 AM
52°F
20%
4mph
SSW
Mostly Cloudy
Humidity
92%
Feels like
52°F
Dew Point
50°F
11 AM
54°F
10%
4mph
SSW
Mostly Cloudy
Humidity
88%
Feels like
54°F
Dew Point
51°F
12 PM
56°F
10%
4mph
SW
Mostly Cloudy
Humidity
84%
Feels like
56°F
Dew Point
51°F
1 PM
57°F
10%
4mph
SW
Mostly Cloudy
Humidity
82%
Feels like
57°F
Dew Point
52°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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