Hourly Weather Forecast - Gann Valley, SD

12 AM
5°F
0%
2mph
NNW
Mostly Clear
Humidity
85%
Feels like
5°F
Dew Point
1°F
1 AM
4°F
0%
1mph
NW
Partly Cloudy
Humidity
86%
Feels like
4°F
Dew Point
1°F
2 AM
4°F
0%
1mph
S
Partly Cloudy
Humidity
86%
Feels like
4°F
Dew Point
1°F
3 AM
4°F
0%
3mph
S
Mostly Cloudy
Humidity
86%
Feels like
4°F
Dew Point
1°F
4 AM
4°F
0%
3mph
SSE
Mostly Cloudy
Humidity
86%
Feels like
-3°F
Dew Point
1°F
5 AM
4°F
0%
4mph
SSE
Mostly Cloudy
Humidity
87%
Feels like
-4°F
Dew Point
1°F
6 AM
4°F
0%
4mph
SE
Mostly Cloudy
Humidity
87%
Feels like
-4°F
Dew Point
1°F
7 AM
5°F
0%
5mph
SE
Mostly Cloudy
Humidity
87%
Feels like
-4°F
Dew Point
2°F
8 AM
7°F
10%
5mph
SE
Cloudy
Humidity
87%
Feels like
-3°F
Dew Point
4°F
8:05 AM
9 AM
8°F
10%
6mph
SSE
Cloudy
Humidity
87%
Feels like
-2°F
Dew Point
5°F
10 AM
11°F
10%
7mph
SSE
Cloudy
Humidity
87%
Feels like
0°F
Dew Point
8°F
11 AM
14°F
10%
8mph
SSE
Cloudy
Humidity
86%
Feels like
3°F
Dew Point
11°F
12 PM
17°F
20%
9mph
SSE
Cloudy
Humidity
86%
Feels like
6°F
Dew Point
13°F
1 PM
19°F
20%
8mph
SSE
Mostly Cloudy
Humidity
85%
Feels like
9°F
Dew Point
15°F
2 PM
21°F
30%
8mph
S
30% Chance of Flurries
Humidity
85%
Feels like
11°F
Dew Point
17°F
3 PM
22°F
20%
7mph
S
Mostly Cloudy
Humidity
86%
Feels like
13°F
Dew Point
18°F
4 PM
22°F
40%
4mph
SW
40% Chance of Flurries
Humidity
89%
Feels like
16°F
Dew Point
19°F
5 PM
21°F
30%
6mph
WNW
30% Chance of Flurries
Humidity
92%
Feels like
13°F
Dew Point
19°F
5:30 PM
6 PM
20°F
30%
10mph
NW
30% Chance of Flurries
Humidity
94%
Feels like
9°F
Dew Point
19°F
7 PM
20°F
30%
11mph
NW
30% Chance of Flurries
Humidity
93%
Feels like
8°F
Dew Point
18°F
8 PM
19°F
30%
11mph
NW
30% Chance of Snow
Humidity
91%
Feels like
7°F
Dew Point
17°F
9 PM
19°F
20%
11mph
NW
Mostly Cloudy
Humidity
90%
Feels like
6°F
Dew Point
16°F
10 PM
18°F
10%
13mph
NW
Partly Cloudy
Humidity
89%
Feels like
5°F
Dew Point
15°F
11 PM
18°F
10%
12mph
NW
Partly Cloudy
Humidity
89%
Feels like
5°F
Dew Point
15°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

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