Hourly Weather Forecast - Mount Vernon, IL

12 AM
35°F
0%
7mph
NNW
Mostly Cloudy
Humidity
73%
Feels like
29°F
Dew Point
28°F
1 AM
34°F
0%
7mph
NNW
Partly Cloudy
Humidity
75%
Feels like
28°F
Dew Point
27°F
2 AM
32°F
0%
6mph
NW
Mostly Clear
Humidity
79%
Feels like
27°F
Dew Point
26°F
3 AM
30°F
0%
5mph
NW
Clear
Humidity
82%
Feels like
25°F
Dew Point
26°F
4 AM
29°F
0%
5mph
NW
Clear
Humidity
86%
Feels like
23°F
Dew Point
25°F
5 AM
27°F
0%
5mph
NW
Clear
Humidity
88%
Feels like
21°F
Dew Point
24°F
6 AM
27°F
0%
5mph
NW
Clear
Humidity
87%
Feels like
21°F
Dew Point
24°F
7 AM
29°F
0%
5mph
NNW
Clear
Humidity
83%
Feels like
24°F
Dew Point
24°F
7:08 AM
8 AM
32°F
0%
4mph
NNW
Sunny
Humidity
76%
Feels like
28°F
Dew Point
26°F
9 AM
36°F
0%
4mph
NNW
Sunny
Humidity
67%
Feels like
32°F
Dew Point
26°F
10 AM
38°F
0%
4mph
NNW
Sunny
Humidity
61%
Feels like
34°F
Dew Point
26°F
11 AM
39°F
0%
4mph
NNW
Sunny
Humidity
55%
Feels like
36°F
Dew Point
25°F
12 PM
40°F
0%
4mph
N
Sunny
Humidity
54%
Feels like
37°F
Dew Point
25°F
1 PM
40°F
0%
4mph
N
Sunny
Humidity
53%
Feels like
38°F
Dew Point
24°F
2 PM
40°F
0%
3mph
N
Mostly Sunny
Humidity
53%
Feels like
38°F
Dew Point
24°F
3 PM
38°F
0%
3mph
N
Mostly Sunny
Humidity
54%
Feels like
36°F
Dew Point
23°F
4 PM
36°F
0%
3mph
N
Mostly Sunny
Humidity
57%
Feels like
36°F
Dew Point
22°F
4:38 PM
5 PM
33°F
0%
3mph
NNE
Mostly Clear
Humidity
63%
Feels like
33°F
Dew Point
22°F
6 PM
31°F
0%
3mph
NE
Clear
Humidity
71%
Feels like
31°F
Dew Point
23°F
7 PM
30°F
0%
3mph
ENE
Clear
Humidity
72%
Feels like
27°F
Dew Point
22°F
8 PM
29°F
0%
4mph
E
Clear
Humidity
71%
Feels like
25°F
Dew Point
21°F
9 PM
29°F
0%
4mph
E
Clear
Humidity
70%
Feels like
25°F
Dew Point
21°F
10 PM
29°F
0%
4mph
ESE
Clear
Humidity
71%
Feels like
25°F
Dew Point
21°F
11 PM
29°F
0%
4mph
ESE
Mostly Clear
Humidity
71%
Feels like
24°F
Dew Point
21°F

Forecast Peak Wind Gusts Today

High Winds, Rain, and Snow Cross the Country

A clipper moving over the Great Lakes brings rain, snow, and high winds through the Atlantic Coastline.

Rainfall and Snowfall Totals Through Friday

Atmospheric River Symptoms Repeat in the Northwest

Thursday's Weather Outlook

Today's Weather Outlook

Flu Update Valid For Week Ending December 6, 2025

Weekly Flu Update: Flu Exceeds Annual Baseline

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

How to Measure Snow via NWS

How To Measure Snow

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