Hourly Weather Forecast - Mount Vernon, IL

12 AM
28°F
0%
5mph
ESE
Partly Cloudy
Humidity
71%
Feels like
23°F
Dew Point
20°F
1 AM
28°F
0%
5mph
ESE
Partly Cloudy
Humidity
72%
Feels like
22°F
Dew Point
20°F
2 AM
27°F
0%
5mph
SE
Partly Cloudy
Humidity
74%
Feels like
21°F
Dew Point
20°F
3 AM
27°F
10%
5mph
SE
Partly Cloudy
Humidity
76%
Feels like
21°F
Dew Point
20°F
4 AM
26°F
10%
5mph
SE
Partly Cloudy
Humidity
79%
Feels like
20°F
Dew Point
21°F
5 AM
26°F
10%
6mph
SE
Partly Cloudy
Humidity
78%
Feels like
19°F
Dew Point
20°F
6 AM
27°F
20%
6mph
SE
Mostly Cloudy
Humidity
76%
Feels like
20°F
Dew Point
20°F
7 AM
29°F
20%
6mph
SE
Mostly Cloudy
Humidity
73%
Feels like
23°F
Dew Point
21°F
7:09 AM
8 AM
32°F
20%
6mph
SE
Mostly Cloudy
Humidity
69%
Feels like
27°F
Dew Point
23°F
9 AM
35°F
20%
6mph
SE
Partly Cloudy
Humidity
63%
Feels like
30°F
Dew Point
24°F
10 AM
38°F
10%
6mph
SE
Partly Cloudy
Humidity
60%
Feels like
33°F
Dew Point
25°F
11 AM
40°F
10%
7mph
SSE
Partly Cloudy
Humidity
55%
Feels like
35°F
Dew Point
25°F
12 PM
42°F
10%
7mph
SSE
Partly Cloudy
Humidity
52%
Feels like
37°F
Dew Point
26°F
1 PM
44°F
10%
7mph
SSE
Partly Cloudy
Humidity
50%
Feels like
40°F
Dew Point
26°F
2 PM
44°F
20%
7mph
SSE
Mostly Sunny
Humidity
50%
Feels like
40°F
Dew Point
27°F
3 PM
44°F
10%
7mph
SSE
Sunny
Humidity
50%
Feels like
40°F
Dew Point
27°F
4 PM
43°F
10%
7mph
SSE
Sunny
Humidity
53%
Feels like
39°F
Dew Point
27°F
4:39 PM
5 PM
42°F
10%
8mph
SSE
Clear
Humidity
59%
Feels like
38°F
Dew Point
29°F
6 PM
42°F
10%
8mph
S
Mostly Clear
Humidity
61%
Feels like
37°F
Dew Point
29°F
7 PM
42°F
10%
8mph
S
Partly Cloudy
Humidity
63%
Feels like
37°F
Dew Point
30°F
8 PM
43°F
10%
9mph
S
Partly Cloudy
Humidity
64%
Feels like
38°F
Dew Point
31°F
9 PM
43°F
10%
9mph
S
Mostly Cloudy
Humidity
65%
Feels like
38°F
Dew Point
32°F
10 PM
44°F
10%
9mph
SSW
Mostly Cloudy
Humidity
70%
Feels like
38°F
Dew Point
35°F
11 PM
44°F
20%
9mph
SSW
Partly Cloudy
Humidity
76%
Feels like
39°F
Dew Point
37°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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