Hourly Weather Forecast - Gann Valley, SD

12 AM
34°F
0%
14mph
NW
Mostly Cloudy
Humidity
77%
Feels like
25°F
Dew Point
28°F
1 AM
34°F
0%
14mph
NW
Cloudy
Humidity
77%
Feels like
24°F
Dew Point
28°F
2 AM
33°F
0%
14mph
NW
Cloudy
Humidity
77%
Feels like
24°F
Dew Point
27°F
3 AM
33°F
0%
13mph
NW
Cloudy
Humidity
76%
Feels like
23°F
Dew Point
26°F
4 AM
32°F
0%
13mph
NW
Cloudy
Humidity
74%
Feels like
22°F
Dew Point
25°F
5 AM
31°F
0%
12mph
NW
Cloudy
Humidity
72%
Feels like
21°F
Dew Point
22°F
6 AM
29°F
0%
11mph
NW
Cloudy
Humidity
70%
Feels like
20°F
Dew Point
21°F
7 AM
28°F
0%
11mph
WNW
Partly Cloudy
Humidity
70%
Feels like
19°F
Dew Point
20°F
8 AM
27°F
0%
11mph
WNW
Mostly Clear
Humidity
70%
Feels like
18°F
Dew Point
19°F
8:07 AM
9 AM
27°F
0%
11mph
WNW
Sunny
Humidity
69%
Feels like
17°F
Dew Point
19°F
10 AM
29°F
0%
12mph
WNW
Sunny
Humidity
65%
Feels like
19°F
Dew Point
19°F
11 AM
31°F
0%
13mph
WNW
Sunny
Humidity
60%
Feels like
21°F
Dew Point
19°F
12 PM
33°F
0%
14mph
WNW
Sunny
Humidity
56%
Feels like
23°F
Dew Point
19°F
1 PM
34°F
0%
15mph
WNW
Sunny
Humidity
53%
Feels like
24°F
Dew Point
19°F
2 PM
35°F
0%
14mph
WNW
Sunny
Humidity
52%
Feels like
26°F
Dew Point
19°F
3 PM
35°F
0%
12mph
WNW
Sunny
Humidity
52%
Feels like
26°F
Dew Point
19°F
4 PM
33°F
0%
10mph
NW
Sunny
Humidity
54%
Feels like
25°F
Dew Point
18°F
5 PM
30°F
0%
8mph
NW
Sunny
Humidity
59%
Feels like
23°F
Dew Point
17°F
5:00 PM
6 PM
28°F
0%
6mph
NNW
Clear
Humidity
63%
Feels like
21°F
Dew Point
17°F
7 PM
26°F
0%
6mph
NNW
Clear
Humidity
66%
Feels like
19°F
Dew Point
16°F
8 PM
24°F
0%
5mph
NW
Clear
Humidity
69%
Feels like
18°F
Dew Point
16°F
9 PM
23°F
0%
4mph
NW
Clear
Humidity
71%
Feels like
18°F
Dew Point
15°F
10 PM
22°F
0%
2mph
WNW
Clear
Humidity
72%
Feels like
22°F
Dew Point
15°F
11 PM
22°F
0%
2mph
SSW
Clear
Humidity
71%
Feels like
22°F
Dew Point
14°F

Forecast Peak Wind Gusts Today

High Winds, Rain, and Snow Cross the Country

A clipper moving over the Great Lakes brings rain, snow, and high winds through the Atlantic Coastline.

Rainfall and Snowfall Totals Through Friday

Atmospheric River Symptoms Repeat in the Northwest

Thursday's Weather Outlook

Today's Weather Outlook

Flu Update Valid For Week Ending December 6, 2025

Weekly Flu Update: Flu Exceeds Annual Baseline

Weekly Drought Map for December 11, 2025

Hit-or-Miss Precipitation Leads to Mixed Drought Results

How to Measure Snow via NWS

How To Measure Snow

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