Hourly Weather Forecast - Gann Valley, SD

12 AM
17°F
0%
11mph
WNW
Partly Cloudy
Humidity
90%
Feels like
5°F
Dew Point
15°F
1 AM
17°F
0%
10mph
WNW
Partly Cloudy
Humidity
89%
Feels like
5°F
Dew Point
15°F
2 AM
17°F
0%
9mph
WNW
Partly Cloudy
Humidity
89%
Feels like
6°F
Dew Point
15°F
3 AM
17°F
0%
10mph
W
Partly Cloudy
Humidity
89%
Feels like
6°F
Dew Point
15°F
4 AM
17°F
0%
10mph
W
Partly Cloudy
Humidity
89%
Feels like
6°F
Dew Point
15°F
5 AM
17°F
30%
10mph
WSW
30% Chance of Snow
Humidity
89%
Feels like
6°F
Dew Point
15°F
6 AM
17°F
0%
10mph
WSW
Partly Cloudy
Humidity
89%
Feels like
5°F
Dew Point
15°F
7 AM
18°F
0%
11mph
WSW
Partly Cloudy
Humidity
89%
Feels like
5°F
Dew Point
15°F
8 AM
19°F
0%
13mph
WSW
Partly Cloudy
Humidity
88%
Feels like
6°F
Dew Point
16°F
8:04 AM
9 AM
20°F
10%
14mph
WSW
Partly Cloudy
Humidity
87%
Feels like
7°F
Dew Point
17°F
10 AM
22°F
20%
16mph
W
Partly Cloudy
Humidity
83%
Feels like
9°F
Dew Point
18°F
11 AM
25°F
20%
20mph
WNW
Windy
Humidity
79%
Feels like
11°F
Dew Point
20°F
12 PM
27°F
20%
25mph
NW
Windy
Humidity
76%
Feels like
11°F
Dew Point
20°F
1 PM
26°F
20%
28mph
NW
Windy
Humidity
73%
Feels like
10°F
Dew Point
19°F
2 PM
25°F
20%
27mph
NW
Windy
Humidity
70%
Feels like
9°F
Dew Point
17°F
3 PM
23°F
10%
25mph
NW
Windy
Humidity
68%
Feels like
7°F
Dew Point
14°F
4 PM
21°F
10%
22mph
NW
Windy
Humidity
68%
Feels like
5°F
Dew Point
12°F
5 PM
19°F
10%
18mph
NW
Partly Cloudy
Humidity
69%
Feels like
3°F
Dew Point
10°F
5:31 PM
6 PM
16°F
0%
16mph
NW
Mostly Clear
Humidity
70%
Feels like
1°F
Dew Point
8°F
7 PM
15°F
0%
14mph
NW
Partly Cloudy
Humidity
71%
Feels like
0°F
Dew Point
7°F
8 PM
13°F
0%
12mph
NW
Partly Cloudy
Humidity
72%
Feels like
-1°F
Dew Point
6°F
9 PM
12°F
0%
11mph
NW
Mostly Cloudy
Humidity
73%
Feels like
-1°F
Dew Point
5°F
10 PM
11°F
0%
9mph
WNW
Mostly Cloudy
Humidity
76%
Feels like
-1°F
Dew Point
5°F
11 PM
10°F
0%
8mph
WNW
Mostly Cloudy
Humidity
79%
Feels like
-2°F
Dew Point
5°F

Snow Forecast through Sunday

Series of Weather Systems Cover Great Lakes, East in Snow

Two main areas of low pressure will produce snow in the Upper Midwest, Great Lakes and Eastern U.S.

Monday's Weather Outlook

Today's Weather Outlook

Weekly Drought Map for January 15, 2026

Active Weather Creates Mix of Improvements, Degradations to Drought Depiction

Vehicle driving in wintry conditions

Prepare Your Car for Cold Weather

(Image provided by NOAA)

Polar Vortex: What Is It?

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

Safety Tips For Icy Surfaces

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide