Hourly Weather Forecast - Gann Valley, SD

12 AM
0°F
10%
9mph
SE
Partly Cloudy
Humidity
83%
Feels like
-14°F
Dew Point
-4°F
1 AM
0°F
10%
9mph
SE
Partly Cloudy
Humidity
83%
Feels like
-14°F
Dew Point
-3°F
2 AM
0°F
10%
9mph
SSE
Mostly Cloudy
Humidity
84%
Feels like
-15°F
Dew Point
-3°F
3 AM
0°F
10%
9mph
SSE
Mostly Cloudy
Humidity
84%
Feels like
-15°F
Dew Point
-3°F
4 AM
1°F
10%
9mph
SSE
Cloudy
Humidity
83%
Feels like
-14°F
Dew Point
-3°F
5 AM
1°F
10%
8mph
SSE
Cloudy
Humidity
83%
Feels like
-13°F
Dew Point
-3°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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