Hourly Weather Forecast - Mount Vernon, IL

12 AM
25°F
10%
13mph
WNW
Mostly Cloudy
Humidity
61%
Feels like
13°F
Dew Point
13°F
1 AM
24°F
0%
12mph
WNW
Mostly Cloudy
Humidity
61%
Feels like
12°F
Dew Point
12°F
2 AM
23°F
0%
11mph
WNW
Mostly Cloudy
Humidity
61%
Feels like
12°F
Dew Point
12°F
3 AM
22°F
0%
10mph
WNW
Mostly Cloudy
Humidity
62%
Feels like
12°F
Dew Point
11°F
4 AM
22°F
0%
9mph
WNW
Mostly Cloudy
Humidity
63%
Feels like
12°F
Dew Point
11°F
5 AM
22°F
0%
8mph
NW
Partly Cloudy
Humidity
64%
Feels like
12°F
Dew Point
11°F
6 AM
22°F
0%
7mph
NW
Partly Cloudy
Humidity
64%
Feels like
13°F
Dew Point
12°F
7 AM
23°F
0%
7mph
NW
Partly Cloudy
Humidity
63%
Feels like
14°F
Dew Point
12°F
7:07 AM
8 AM
24°F
0%
7mph
NW
Partly Cloudy
Humidity
61%
Feels like
16°F
Dew Point
12°F
9 AM
25°F
0%
7mph
NW
Partly Cloudy
Humidity
59%
Feels like
17°F
Dew Point
13°F
10 AM
26°F
0%
7mph
WNW
Partly Cloudy
Humidity
56%
Feels like
19°F
Dew Point
13°F
11 AM
28°F
0%
7mph
WSW
Mostly Sunny
Humidity
54%
Feels like
21°F
Dew Point
13°F
12 PM
29°F
0%
7mph
SW
Mostly Sunny
Humidity
53%
Feels like
22°F
Dew Point
14°F
1 PM
30°F
0%
7mph
SW
Sunny
Humidity
52%
Feels like
23°F
Dew Point
14°F
2 PM
30°F
0%
6mph
S
Sunny
Humidity
52%
Feels like
24°F
Dew Point
15°F
3 PM
30°F
0%
6mph
SSE
Sunny
Humidity
54%
Feels like
23°F
Dew Point
15°F
4 PM
28°F
0%
6mph
SSE
Sunny
Humidity
59%
Feels like
22°F
Dew Point
16°F
4:37 PM
5 PM
27°F
0%
5mph
SSE
Clear
Humidity
64%
Feels like
21°F
Dew Point
17°F
6 PM
27°F
0%
6mph
SSE
Clear
Humidity
67%
Feels like
20°F
Dew Point
17°F
7 PM
27°F
0%
6mph
SSE
Clear
Humidity
69%
Feels like
20°F
Dew Point
18°F
8 PM
27°F
0%
7mph
SSE
Clear
Humidity
71%
Feels like
20°F
Dew Point
19°F
9 PM
28°F
0%
8mph
S
Clear
Humidity
73%
Feels like
20°F
Dew Point
20°F
10 PM
28°F
0%
8mph
S
Clear
Humidity
74%
Feels like
20°F
Dew Point
21°F
11 PM
29°F
0%
9mph
S
Mostly Clear
Humidity
75%
Feels like
21°F
Dew Point
22°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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