Hourly Weather Forecast - Sumner, IA

12 AM
36°F
0%
14mph
WNW
Mostly Cloudy
Humidity
88%
Feels like
28°F
Dew Point
33°F
1 AM
35°F
0%
13mph
NW
Partly Cloudy
Humidity
89%
Feels like
27°F
Dew Point
32°F
2 AM
34°F
0%
12mph
NW
Partly Cloudy
Humidity
89%
Feels like
25°F
Dew Point
31°F
3 AM
32°F
0%
11mph
NW
Partly Cloudy
Humidity
90%
Feels like
23°F
Dew Point
29°F
4 AM
29°F
0%
9mph
NW
Partly Cloudy
Humidity
91%
Feels like
21°F
Dew Point
27°F
5 AM
27°F
0%
8mph
NW
Partly Cloudy
Humidity
92%
Feels like
19°F
Dew Point
25°F
6 AM
25°F
0%
6mph
NW
Partly Cloudy
Humidity
94%
Feels like
18°F
Dew Point
24°F
7 AM
24°F
0%
5mph
WNW
Partly Cloudy
Humidity
95%
Feels like
17°F
Dew Point
23°F
7:33 AM
8 AM
23°F
0%
4mph
WNW
Partly Cloudy
Humidity
97%
Feels like
18°F
Dew Point
23°F
9 AM
24°F
0%
3mph
W
Partly Cloudy
Humidity
97%
Feels like
19°F
Dew Point
23°F
10 AM
26°F
0%
4mph
SW
Partly Cloudy
Humidity
94%
Feels like
21°F
Dew Point
24°F
11 AM
28°F
0%
5mph
SSW
Mostly Cloudy
Humidity
92%
Feels like
22°F
Dew Point
26°F
12 PM
30°F
0%
7mph
S
Partly Cloudy
Humidity
89%
Feels like
23°F
Dew Point
27°F
1 PM
31°F
0%
9mph
S
Sunny
Humidity
87%
Feels like
23°F
Dew Point
28°F
2 PM
31°F
0%
11mph
SSE
Sunny
Humidity
86%
Feels like
22°F
Dew Point
28°F
3 PM
31°F
0%
13mph
SSE
Sunny
Humidity
85%
Feels like
22°F
Dew Point
28°F
4 PM
31°F
0%
14mph
SSE
Sunny
Humidity
86%
Feels like
21°F
Dew Point
27°F
4:35 PM
5 PM
30°F
0%
15mph
SSE
Mostly Clear
Humidity
87%
Feels like
19°F
Dew Point
27°F
6 PM
30°F
0%
17mph
SSE
Mostly Clear
Humidity
89%
Feels like
18°F
Dew Point
27°F
7 PM
30°F
0%
18mph
SSE
Partly Cloudy
Humidity
91%
Feels like
18°F
Dew Point
28°F
8 PM
31°F
0%
20mph
SSE
Mostly Cloudy
Humidity
94%
Feels like
19°F
Dew Point
29°F
9 PM
32°F
0%
21mph
S
Windy
Humidity
96%
Feels like
20°F
Dew Point
31°F
10 PM
33°F
10%
21mph
S
Windy
Humidity
97%
Feels like
21°F
Dew Point
32°F
11 PM
34°F
20%
21mph
S
Windy
Humidity
99%
Feels like
22°F
Dew Point
34°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

Wednesday'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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