Hourly Weather Forecast - Sumner, IA

5 AM
21°F
0%
10mph
WSW
Mostly Cloudy
Humidity
98%
Feels like
11°F
Dew Point
21°F
6 AM
21°F
0%
9mph
W
Partly Cloudy
Humidity
98%
Feels like
11°F
Dew Point
21°F
7 AM
22°F
0%
9mph
W
Mostly Cloudy
Humidity
98%
Feels like
12°F
Dew Point
21°F
7:27 AM
8 AM
23°F
0%
9mph
W
Mostly Cloudy
Humidity
98%
Feels like
13°F
Dew Point
22°F
9 AM
24°F
0%
8mph
W
Mostly Cloudy
Humidity
97%
Feels like
15°F
Dew Point
23°F
10 AM
25°F
0%
6mph
WSW
Mostly Cloudy
Humidity
96%
Feels like
18°F
Dew Point
24°F
11 AM
27°F
0%
7mph
SW
Partly Cloudy
Humidity
94%
Feels like
20°F
Dew Point
26°F
12 PM
29°F
10%
7mph
SSW
Mostly Cloudy
Humidity
93%
Feels like
21°F
Dew Point
27°F
1 PM
30°F
10%
8mph
S
Mostly Cloudy
Humidity
93%
Feels like
22°F
Dew Point
28°F
2 PM
31°F
10%
10mph
S
Mostly Cloudy
Humidity
93%
Feels like
22°F
Dew Point
29°F
3 PM
32°F
20%
11mph
S
Cloudy
Humidity
93%
Feels like
23°F
Dew Point
30°F
4 PM
32°F
30%
14mph
S
30% Chance of Light Rain
Humidity
95%
Feels like
22°F
Dew Point
31°F
4:34 PM
5 PM
33°F
60%
16mph
S
60% Chance of Light Rain
Humidity
96%
Feels like
23°F
Dew Point
32°F
6 PM
33°F
70%
16mph
S
70% Chance of Light Rain
Humidity
98%
Feels like
23°F
Dew Point
33°F
7 PM
34°F
40%
15mph
SSW
40% Chance of Light Rain
Humidity
98%
Feels like
24°F
Dew Point
34°F
8 PM
35°F
30%
16mph
WSW
30% Chance of Light Rain
Humidity
99%
Feels like
25°F
Dew Point
35°F
9 PM
36°F
20%
19mph
WSW
Foggy
Humidity
99%
Feels like
25°F
Dew Point
35°F
10 PM
36°F
10%
21mph
W
Windy
Humidity
98%
Feels like
25°F
Dew Point
35°F
11 PM
36°F
10%
23mph
W
Windy
Humidity
96%
Feels like
25°F
Dew Point
35°F

Snow and ice forecast through Thursday A.M.

Snow Barrels Across the Northern U.S.

Low pressure will produce a swath of snow from Minnesota to Maine into Thursday.

Rainfall Forecast for Northwest through Thursday

Heavy, Flooding Rain Impacts the Northwest

Today's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for December 4, 2025

Active Week of Weather Leads to Mixed Drought Results

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

Cold Air Damming - Cause And Effects

People skating on a frozen pond on a clear day. (Image by Q K from Pixabay)

Safety Tips For Icy Surfaces

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide