Hourly Weather Forecast - Mount Vernon, IL

12 AM
44°F
20%
9mph
SSW
Partly Cloudy
Humidity
80%
Feels like
39°F
Dew Point
39°F
1 AM
45°F
20%
9mph
SSW
Partly Cloudy
Humidity
83%
Feels like
40°F
Dew Point
40°F
2 AM
46°F
20%
9mph
SSW
Partly Cloudy
Humidity
86%
Feels like
41°F
Dew Point
41°F
3 AM
46°F
20%
9mph
SSW
Partly Cloudy
Humidity
88%
Feels like
41°F
Dew Point
42°F
4 AM
46°F
20%
9mph
SSW
Partly Cloudy
Humidity
92%
Feels like
41°F
Dew Point
44°F
5 AM
46°F
20%
9mph
SSW
Partly Cloudy
Humidity
95%
Feels like
41°F
Dew Point
44°F
6 AM
46°F
30%
8mph
SSW
30% Chance Rain Showers
Humidity
96%
Feels like
42°F
Dew Point
45°F
7 AM
47°F
30%
8mph
SSW
30% Chance Rain Showers
Humidity
98%
Feels like
44°F
Dew Point
47°F
7:09 AM
8 AM
50°F
30%
8mph
SSW
30% Chance Rain Showers
Humidity
97%
Feels like
46°F
Dew Point
49°F
9 AM
52°F
30%
9mph
SSW
30% Chance Rain Showers
Humidity
94%
Feels like
52°F
Dew Point
50°F
10 AM
53°F
20%
9mph
SSW
Mostly Cloudy
Humidity
93%
Feels like
53°F
Dew Point
51°F
11 AM
55°F
20%
9mph
SW
Mostly Cloudy
Humidity
90%
Feels like
55°F
Dew Point
52°F
12 PM
56°F
10%
9mph
SW
Mostly Cloudy
Humidity
89%
Feels like
56°F
Dew Point
53°F
1 PM
56°F
10%
9mph
SW
Mostly Cloudy
Humidity
87%
Feels like
56°F
Dew Point
53°F
2 PM
56°F
10%
8mph
SSW
Mostly Cloudy
Humidity
88%
Feels like
56°F
Dew Point
53°F
3 PM
56°F
10%
7mph
SSW
Mostly Cloudy
Humidity
88%
Feels like
56°F
Dew Point
53°F
4 PM
55°F
10%
7mph
SSW
Mostly Cloudy
Humidity
88%
Feels like
55°F
Dew Point
52°F
4:39 PM
5 PM
55°F
10%
6mph
SSW
Partly Cloudy
Humidity
90%
Feels like
55°F
Dew Point
51°F
6 PM
53°F
10%
6mph
SSW
Foggy
Humidity
100%
Feels like
53°F
Dew Point
53°F
7 PM
53°F
20%
5mph
SSW
Partly Cloudy
Humidity
98%
Feels like
53°F
Dew Point
52°F
8 PM
52°F
20%
5mph
SSW
Foggy
Humidity
100%
Feels like
52°F
Dew Point
52°F
9 PM
52°F
30%
5mph
SSW
30% Chance Rain Showers
Humidity
99%
Feels like
52°F
Dew Point
52°F
10 PM
52°F
30%
5mph
SSW
30% Chance Rain Showers
Humidity
100%
Feels like
52°F
Dew Point
52°F
11 PM
52°F
30%
5mph
SSW
30% Chance Rain Showers
Humidity
100%
Feels like
52°F
Dew Point
52°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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