Hourly Weather Forecast - Mount Vernon, IA

12 AM
26°F
0%
6mph
NW
Clear
Humidity
68%
Feels like
18°F
Dew Point
16°F
1 AM
24°F
0%
6mph
NW
Clear
Humidity
67%
Feels like
17°F
Dew Point
15°F
2 AM
23°F
0%
6mph
WNW
Clear
Humidity
68%
Feels like
15°F
Dew Point
14°F
3 AM
22°F
0%
6mph
WNW
Clear
Humidity
68%
Feels like
14°F
Dew Point
13°F
4 AM
21°F
0%
6mph
WNW
Clear
Humidity
68%
Feels like
13°F
Dew Point
12°F
5 AM
20°F
0%
5mph
WNW
Clear
Humidity
67%
Feels like
13°F
Dew Point
11°F
6 AM
19°F
0%
5mph
WNW
Clear
Humidity
68%
Feels like
12°F
Dew Point
10°F
7 AM
19°F
10%
4mph
WNW
Clear
Humidity
66%
Feels like
13°F
Dew Point
10°F
7:30 AM
8 AM
20°F
10%
4mph
WNW
Sunny
Humidity
63%
Feels like
14°F
Dew Point
10°F
9 AM
22°F
10%
4mph
WNW
Sunny
Humidity
59%
Feels like
17°F
Dew Point
10°F
10 AM
25°F
10%
4mph
WNW
Sunny
Humidity
53%
Feels like
20°F
Dew Point
10°F
11 AM
28°F
10%
4mph
W
Sunny
Humidity
49%
Feels like
23°F
Dew Point
11°F
12 PM
30°F
10%
4mph
W
Sunny
Humidity
45%
Feels like
26°F
Dew Point
12°F
1 PM
32°F
10%
4mph
W
Sunny
Humidity
42%
Feels like
28°F
Dew Point
12°F
2 PM
33°F
10%
5mph
WSW
Sunny
Humidity
41%
Feels like
29°F
Dew Point
12°F
3 PM
33°F
20%
4mph
WSW
Sunny
Humidity
43%
Feels like
29°F
Dew Point
13°F
4 PM
32°F
20%
4mph
SW
Mostly Sunny
Humidity
46%
Feels like
29°F
Dew Point
14°F
4:37 PM
5 PM
30°F
10%
4mph
S
Partly Cloudy
Humidity
53%
Feels like
26°F
Dew Point
15°F
6 PM
28°F
10%
5mph
SSE
Mostly Cloudy
Humidity
59%
Feels like
23°F
Dew Point
16°F
7 PM
28°F
10%
6mph
SE
Mostly Cloudy
Humidity
65%
Feels like
21°F
Dew Point
17°F
8 PM
28°F
10%
5mph
SE
Mostly Cloudy
Humidity
66%
Feels like
22°F
Dew Point
19°F
9 PM
29°F
0%
5mph
SE
Cloudy
Humidity
67%
Feels like
23°F
Dew Point
19°F
10 PM
29°F
10%
5mph
SE
Cloudy
Humidity
67%
Feels like
24°F
Dew Point
20°F
11 PM
30°F
10%
6mph
SSE
Cloudy
Humidity
67%
Feels like
24°F
Dew Point
20°F

Rainfall and Snowfall Totals Through Thursday

Pineapple Express Slams Northwestern U.S.

The atmospheric river this week will keep buffeting the Pacific Northwest with heavy rain, snow, and high winds.

Wednesday's Weather Outlook

Today'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 person standing in a snowy forest with their back to the camera. They are bundled up in a white hat and a brown jacket. (Image by StockSnap from Pixabay)

Common Cold Weather Illnesses

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

Cold Air Damming - Cause And Effects

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