Hourly Weather Forecast - Sumner, IA

12 AM
24°F
0%
13mph
S
Mostly Cloudy
Humidity
81%
Feels like
12°F
Dew Point
19°F
1 AM
25°F
0%
13mph
S
Partly Cloudy
Humidity
82%
Feels like
13°F
Dew Point
20°F
2 AM
25°F
0%
13mph
S
Partly Cloudy
Humidity
82%
Feels like
14°F
Dew Point
20°F
3 AM
26°F
0%
13mph
S
Partly Cloudy
Humidity
83%
Feels like
14°F
Dew Point
21°F
4 AM
26°F
0%
12mph
S
Partly Cloudy
Humidity
84%
Feels like
15°F
Dew Point
22°F
5 AM
26°F
0%
11mph
S
Partly Cloudy
Humidity
85%
Feels like
15°F
Dew Point
22°F
6 AM
26°F
10%
10mph
S
Partly Cloudy
Humidity
86%
Feels like
16°F
Dew Point
22°F
7 AM
27°F
20%
6mph
SSW
Partly Cloudy
Humidity
86%
Feels like
20°F
Dew Point
23°F
7:35 AM
8 AM
28°F
20%
6mph
W
Mostly Cloudy
Humidity
86%
Feels like
21°F
Dew Point
24°F
9 AM
29°F
20%
9mph
WNW
Cloudy
Humidity
85%
Feels like
20°F
Dew Point
25°F
10 AM
30°F
10%
11mph
NW
Cloudy
Humidity
83%
Feels like
21°F
Dew Point
26°F
11 AM
32°F
10%
11mph
NW
Mostly Cloudy
Humidity
79%
Feels like
23°F
Dew Point
26°F
12 PM
33°F
0%
12mph
NW
Mostly Cloudy
Humidity
76%
Feels like
24°F
Dew Point
26°F
1 PM
33°F
0%
13mph
NW
Mostly Cloudy
Humidity
74%
Feels like
24°F
Dew Point
26°F
2 PM
33°F
0%
13mph
NW
Mostly Cloudy
Humidity
73%
Feels like
23°F
Dew Point
25°F
3 PM
32°F
0%
13mph
NW
Partly Cloudy
Humidity
73%
Feels like
22°F
Dew Point
24°F
4 PM
31°F
0%
13mph
NW
Partly Cloudy
Humidity
75%
Feels like
21°F
Dew Point
24°F
4:36 PM
5 PM
29°F
10%
13mph
NW
Mostly Cloudy
Humidity
79%
Feels like
18°F
Dew Point
23°F
6 PM
27°F
0%
12mph
NW
Mostly Cloudy
Humidity
81%
Feels like
16°F
Dew Point
22°F
7 PM
26°F
0%
11mph
NW
Mostly Cloudy
Humidity
81%
Feels like
15°F
Dew Point
21°F
8 PM
25°F
0%
11mph
NW
Cloudy
Humidity
80%
Feels like
14°F
Dew Point
20°F
9 PM
24°F
0%
11mph
NW
Cloudy
Humidity
79%
Feels like
14°F
Dew Point
19°F
10 PM
23°F
0%
10mph
NW
Cloudy
Humidity
77%
Feels like
13°F
Dew Point
17°F
11 PM
22°F
0%
10mph
NW
Mostly Cloudy
Humidity
75%
Feels like
12°F
Dew Point
15°F

Rainfall and Snowfall Totals Through Wednesday

Heavy Rain, Snow, and Winds Wallop Northwest

The atmospheric river this week continues to hit 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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