Hourly Weather Forecast - Mascoutah, IL

12 AM
40°F
0%
8mph
NNW
Partly Cloudy
Humidity
78%
Feels like
34°F
Dew Point
34°F
1 AM
39°F
0%
8mph
NNW
Partly Cloudy
Humidity
78%
Feels like
33°F
Dew Point
32°F
2 AM
38°F
0%
7mph
NNW
Partly Cloudy
Humidity
77%
Feels like
32°F
Dew Point
31°F
3 AM
37°F
0%
6mph
NNW
Partly Cloudy
Humidity
75%
Feels like
32°F
Dew Point
30°F
4 AM
36°F
0%
6mph
NNW
Partly Cloudy
Humidity
75%
Feels like
31°F
Dew Point
29°F
5 AM
36°F
0%
5mph
NNW
Partly Cloudy
Humidity
71%
Feels like
32°F
Dew Point
28°F
6 AM
36°F
0%
5mph
NNW
Partly Cloudy
Humidity
68%
Feels like
32°F
Dew Point
27°F
7 AM
37°F
0%
4mph
NNW
Partly Cloudy
Humidity
65%
Feels like
33°F
Dew Point
26°F
7:12 AM
8 AM
37°F
0%
4mph
NNW
Partly Cloudy
Humidity
64%
Feels like
34°F
Dew Point
26°F
9 AM
38°F
0%
4mph
N
Partly Cloudy
Humidity
63%
Feels like
34°F
Dew Point
26°F
10 AM
39°F
0%
4mph
N
Mostly Sunny
Humidity
61%
Feels like
36°F
Dew Point
27°F
11 AM
40°F
0%
4mph
NNE
Sunny
Humidity
60%
Feels like
37°F
Dew Point
27°F
12 PM
41°F
0%
4mph
NNE
Sunny
Humidity
59%
Feels like
38°F
Dew Point
28°F
1 PM
42°F
0%
4mph
NE
Sunny
Humidity
58%
Feels like
39°F
Dew Point
28°F
2 PM
42°F
0%
4mph
NE
Sunny
Humidity
57%
Feels like
40°F
Dew Point
28°F
3 PM
42°F
0%
4mph
ENE
Mostly Sunny
Humidity
57%
Feels like
39°F
Dew Point
28°F
4 PM
42°F
0%
4mph
ENE
Mostly Sunny
Humidity
58%
Feels like
39°F
Dew Point
28°F
4:41 PM
5 PM
41°F
0%
4mph
E
Partly Cloudy
Humidity
60%
Feels like
38°F
Dew Point
28°F
6 PM
41°F
0%
5mph
E
Partly Cloudy
Humidity
62%
Feels like
37°F
Dew Point
29°F
7 PM
40°F
0%
6mph
E
Partly Cloudy
Humidity
65%
Feels like
36°F
Dew Point
29°F
8 PM
39°F
0%
6mph
ESE
Partly Cloudy
Humidity
68%
Feels like
35°F
Dew Point
30°F
9 PM
39°F
0%
6mph
ESE
Mostly Clear
Humidity
71%
Feels like
34°F
Dew Point
30°F
10 PM
38°F
0%
7mph
ESE
Partly Cloudy
Humidity
74%
Feels like
33°F
Dew Point
31°F
11 PM
38°F
0%
7mph
ESE
Partly Cloudy
Humidity
76%
Feels like
33°F
Dew Point
31°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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