Hourly Weather Forecast - Mount Vernon, IL

12 AM
29°F
0%
9mph
S
Mostly Clear
Humidity
76%
Feels like
21°F
Dew Point
23°F
1 AM
30°F
0%
9mph
S
Mostly Clear
Humidity
76%
Feels like
22°F
Dew Point
24°F
2 AM
31°F
0%
10mph
S
Mostly Clear
Humidity
77%
Feels like
22°F
Dew Point
24°F
3 AM
31°F
0%
10mph
S
Partly Cloudy
Humidity
77%
Feels like
23°F
Dew Point
25°F
4 AM
32°F
10%
10mph
S
Partly Cloudy
Humidity
76%
Feels like
24°F
Dew Point
25°F
5 AM
32°F
10%
10mph
S
Partly Cloudy
Humidity
79%
Feels like
24°F
Dew Point
26°F
6 AM
32°F
10%
11mph
S
Partly Cloudy
Humidity
83%
Feels like
23°F
Dew Point
27°F
7 AM
32°F
10%
11mph
S
Partly Cloudy
Humidity
85%
Feels like
24°F
Dew Point
28°F
7:08 AM
8 AM
35°F
10%
11mph
S
Mostly Sunny
Humidity
82%
Feels like
27°F
Dew Point
30°F
9 AM
38°F
10%
12mph
S
Mostly Sunny
Humidity
77%
Feels like
31°F
Dew Point
31°F
10 AM
41°F
10%
12mph
S
Mostly Sunny
Humidity
72%
Feels like
34°F
Dew Point
33°F
11 AM
45°F
10%
13mph
SSW
Mostly Sunny
Humidity
68%
Feels like
38°F
Dew Point
35°F
12 PM
47°F
10%
13mph
SSW
Mostly Sunny
Humidity
67%
Feels like
41°F
Dew Point
36°F
1 PM
48°F
20%
13mph
SSW
Sunny
Humidity
67%
Feels like
43°F
Dew Point
38°F
2 PM
48°F
30%
13mph
SSW
30% Chance Rain Showers
Humidity
68%
Feels like
43°F
Dew Point
38°F
3 PM
48°F
30%
12mph
SSW
30% Chance Rain Showers
Humidity
71%
Feels like
42°F
Dew Point
39°F
4 PM
47°F
30%
11mph
SSW
30% Chance Rain Showers
Humidity
76%
Feels like
41°F
Dew Point
39°F
4:38 PM
5 PM
46°F
30%
10mph
SSW
30% Chance Rain Showers
Humidity
79%
Feels like
40°F
Dew Point
39°F
6 PM
45°F
30%
10mph
SSW
30% Chance Rain Showers
Humidity
80%
Feels like
40°F
Dew Point
40°F

Wind chill temperatures Monday A.M.

Cold Weather Chills the Nation Down to the Gulf

Extreme cold paired with their wind chill values will shiver much of the nation.

Snowfall forecast through Monday evening.

Mid-Atlantic, Great Lakes Snow Piles Up

Monday's Weather Outlook

Monday'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 strong cold-air-damming event from March 20, 2018.

Cold Air Damming - Cause And Effects

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