Hourly Weather Forecast - Gann Valley, SD

12 AM
22°F
0%
4mph
S
Clear
Humidity
71%
Feels like
16°F
Dew Point
14°F
1 AM
21°F
0%
5mph
SSE
Clear
Humidity
71%
Feels like
14°F
Dew Point
13°F
2 AM
21°F
0%
6mph
SSE
Clear
Humidity
72%
Feels like
13°F
Dew Point
13°F
3 AM
20°F
0%
6mph
SSE
Clear
Humidity
72%
Feels like
12°F
Dew Point
13°F
4 AM
20°F
0%
7mph
SSE
Clear
Humidity
73%
Feels like
11°F
Dew Point
13°F
5 AM
20°F
0%
7mph
SSE
Mostly Clear
Humidity
75%
Feels like
10°F
Dew Point
13°F
6 AM
20°F
0%
8mph
SSE
Partly Cloudy
Humidity
77%
Feels like
10°F
Dew Point
13°F
7 AM
20°F
0%
8mph
SSE
Partly Cloudy
Humidity
77%
Feels like
10°F
Dew Point
14°F
8 AM
20°F
0%
8mph
SSE
Partly Cloudy
Humidity
78%
Feels like
11°F
Dew Point
15°F
8:08 AM
9 AM
22°F
0%
9mph
SSE
Mostly Cloudy
Humidity
76%
Feels like
12°F
Dew Point
16°F
10 AM
25°F
0%
9mph
SSE
Cloudy
Humidity
71%
Feels like
16°F
Dew Point
17°F
11 AM
30°F
0%
9mph
SSE
Cloudy
Humidity
63%
Feels like
21°F
Dew Point
19°F
12 PM
33°F
0%
10mph
SSE
Cloudy
Humidity
58%
Feels like
25°F
Dew Point
20°F
1 PM
36°F
0%
10mph
SSE
Cloudy
Humidity
55%
Feels like
28°F
Dew Point
21°F
2 PM
38°F
10%
10mph
SSE
Cloudy
Humidity
53%
Feels like
31°F
Dew Point
22°F
3 PM
38°F
10%
10mph
SSE
Cloudy
Humidity
54%
Feels like
32°F
Dew Point
23°F
4 PM
37°F
10%
10mph
SSE
Partly Cloudy
Humidity
57%
Feels like
30°F
Dew Point
24°F
5 PM
35°F
10%
9mph
SSE
Partly Cloudy
Humidity
63%
Feels like
28°F
Dew Point
24°F
5:00 PM
6 PM
33°F
10%
9mph
SE
Clear
Humidity
68%
Feels like
26°F
Dew Point
24°F
7 PM
32°F
10%
9mph
SE
Clear
Humidity
70%
Feels like
25°F
Dew Point
24°F
8 PM
32°F
10%
9mph
SE
Clear
Humidity
72%
Feels like
25°F
Dew Point
24°F
9 PM
32°F
10%
9mph
SSE
Mostly Clear
Humidity
73%
Feels like
24°F
Dew Point
24°F
10 PM
31°F
10%
9mph
SSE
Mostly Clear
Humidity
73%
Feels like
24°F
Dew Point
24°F
11 PM
31°F
10%
9mph
SSE
Mostly Clear
Humidity
73%
Feels like
24°F
Dew Point
24°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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