Hourly Weather Forecast - Sumner, IA

12 AM
25°F
10%
8mph
SSE
Cloudy
Humidity
79%
Feels like
16°F
Dew Point
20°F
1 AM
26°F
10%
9mph
SSE
Cloudy
Humidity
79%
Feels like
17°F
Dew Point
20°F
2 AM
26°F
10%
9mph
SSE
Cloudy
Humidity
79%
Feels like
17°F
Dew Point
20°F
3 AM
26°F
10%
9mph
SSE
Cloudy
Humidity
80%
Feels like
17°F
Dew Point
21°F
4 AM
26°F
10%
9mph
SSE
Cloudy
Humidity
80%
Feels like
17°F
Dew Point
21°F
5 AM
26°F
20%
10mph
SSE
Cloudy
Humidity
80%
Feels like
17°F
Dew Point
21°F
6 AM
27°F
10%
10mph
SSE
Cloudy
Humidity
80%
Feels like
17°F
Dew Point
21°F
7 AM
27°F
10%
10mph
SSE
Mostly Cloudy
Humidity
80%
Feels like
18°F
Dew Point
22°F
7:36 AM
8 AM
28°F
10%
11mph
SSE
Partly Cloudy
Humidity
80%
Feels like
18°F
Dew Point
23°F
9 AM
29°F
10%
11mph
SSE
Partly Cloudy
Humidity
79%
Feels like
19°F
Dew Point
23°F
10 AM
30°F
10%
11mph
SSE
Partly Cloudy
Humidity
77%
Feels like
21°F
Dew Point
24°F
11 AM
32°F
10%
12mph
S
Mostly Cloudy
Humidity
74%
Feels like
23°F
Dew Point
25°F
12 PM
33°F
10%
12mph
S
Mostly Cloudy
Humidity
72%
Feels like
24°F
Dew Point
25°F
1 PM
34°F
20%
12mph
S
Mostly Cloudy
Humidity
70%
Feels like
26°F
Dew Point
26°F
2 PM
35°F
20%
12mph
S
Partly Cloudy
Humidity
70%
Feels like
27°F
Dew Point
26°F
3 PM
35°F
20%
12mph
S
Partly Cloudy
Humidity
71%
Feels like
27°F
Dew Point
27°F
4 PM
35°F
10%
12mph
S
Mostly Sunny
Humidity
74%
Feels like
26°F
Dew Point
28°F
4:37 PM
5 PM
34°F
10%
13mph
S
Clear
Humidity
79%
Feels like
25°F
Dew Point
28°F
6 PM
33°F
10%
13mph
S
Clear
Humidity
83%
Feels like
24°F
Dew Point
29°F
7 PM
33°F
10%
13mph
S
Clear
Humidity
85%
Feels like
24°F
Dew Point
29°F
8 PM
33°F
10%
12mph
S
Mostly Clear
Humidity
87%
Feels like
24°F
Dew Point
29°F
9 PM
33°F
10%
12mph
S
Mostly Clear
Humidity
88%
Feels like
24°F
Dew Point
30°F
10 PM
33°F
10%
12mph
S
Hazy
Humidity
91%
Feels like
24°F
Dew Point
31°F
11 PM
33°F
10%
11mph
S
Hazy
Humidity
93%
Feels like
25°F
Dew Point
31°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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