Hourly Weather Forecast - Mascoutah, IL

12 AM
39°F
10%
8mph
S
Partly Cloudy
Humidity
85%
Feels like
33°F
Dew Point
35°F
1 AM
39°F
10%
8mph
S
Mostly Cloudy
Humidity
87%
Feels like
34°F
Dew Point
35°F
2 AM
40°F
10%
7mph
S
Mostly Cloudy
Humidity
88%
Feels like
35°F
Dew Point
36°F
3 AM
40°F
10%
7mph
S
Cloudy
Humidity
90%
Feels like
35°F
Dew Point
37°F
4 AM
40°F
10%
7mph
S
Cloudy
Humidity
91%
Feels like
36°F
Dew Point
38°F
5 AM
41°F
10%
7mph
S
Cloudy
Humidity
92%
Feels like
36°F
Dew Point
39°F
6 AM
42°F
10%
7mph
S
Mostly Cloudy
Humidity
93%
Feels like
37°F
Dew Point
40°F
7 AM
42°F
20%
7mph
S
Mostly Cloudy
Humidity
94%
Feels like
38°F
Dew Point
40°F
7:13 AM
8 AM
43°F
20%
7mph
S
Mostly Cloudy
Humidity
94%
Feels like
38°F
Dew Point
41°F
9 AM
44°F
20%
7mph
SSW
Cloudy
Humidity
94%
Feels like
40°F
Dew Point
42°F
10 AM
46°F
20%
7mph
SSW
Cloudy
Humidity
92%
Feels like
43°F
Dew Point
44°F
11 AM
49°F
10%
8mph
SSW
Cloudy
Humidity
89%
Feels like
46°F
Dew Point
46°F
12 PM
51°F
10%
8mph
SW
Cloudy
Humidity
88%
Feels like
51°F
Dew Point
48°F
1 PM
51°F
10%
7mph
SW
Mostly Cloudy
Humidity
89%
Feels like
51°F
Dew Point
48°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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