Hourly Weather Forecast - Gann Valley, SD

12 AM
35°F
0%
8mph
NW
Clear
Humidity
86%
Feels like
28°F
Dew Point
31°F
1 AM
34°F
0%
7mph
NW
Clear
Humidity
87%
Feels like
28°F
Dew Point
30°F
2 AM
33°F
0%
7mph
NW
Clear
Humidity
88%
Feels like
27°F
Dew Point
30°F
3 AM
33°F
0%
6mph
NW
Clear
Humidity
89%
Feels like
27°F
Dew Point
30°F
4 AM
32°F
0%
6mph
NW
Hazy
Humidity
91%
Feels like
26°F
Dew Point
29°F
5 AM
31°F
0%
6mph
NW
Hazy
Humidity
91%
Feels like
25°F
Dew Point
28°F
6 AM
30°F
0%
5mph
NW
Hazy
Humidity
92%
Feels like
25°F
Dew Point
28°F
7 AM
30°F
0%
5mph
WNW
Hazy
Humidity
91%
Feels like
25°F
Dew Point
28°F
7:45 AM
8 AM
30°F
0%
5mph
WNW
Hazy
Humidity
91%
Feels like
25°F
Dew Point
28°F
9 AM
32°F
0%
6mph
W
Mostly Sunny
Humidity
88%
Feels like
26°F
Dew Point
29°F
10 AM
35°F
0%
6mph
W
Mostly Sunny
Humidity
82%
Feels like
29°F
Dew Point
30°F
11 AM
39°F
0%
7mph
W
Mostly Sunny
Humidity
74%
Feels like
34°F
Dew Point
31°F
12 PM
42°F
0%
9mph
WSW
Mostly Sunny
Humidity
68%
Feels like
37°F
Dew Point
33°F
1 PM
46°F
0%
9mph
WSW
Sunny
Humidity
63%
Feels like
41°F
Dew Point
34°F
2 PM
48°F
0%
9mph
WSW
Sunny
Humidity
59%
Feels like
44°F
Dew Point
35°F
3 PM
50°F
0%
8mph
WSW
Sunny
Humidity
58%
Feels like
46°F
Dew Point
35°F
4 PM
49°F
0%
8mph
WSW
Sunny
Humidity
60%
Feels like
46°F
Dew Point
36°F
5 PM
47°F
0%
6mph
WSW
Sunny
Humidity
64%
Feels like
45°F
Dew Point
36°F
5:56 PM
6 PM
46°F
0%
5mph
WSW
Clear
Humidity
68%
Feels like
43°F
Dew Point
36°F
7 PM
45°F
0%
5mph
WSW
Clear
Humidity
69%
Feels like
42°F
Dew Point
35°F
8 PM
44°F
0%
5mph
WSW
Clear
Humidity
70%
Feels like
41°F
Dew Point
35°F
9 PM
43°F
0%
5mph
WSW
Clear
Humidity
70%
Feels like
39°F
Dew Point
34°F
10 PM
42°F
0%
5mph
WSW
Clear
Humidity
71%
Feels like
38°F
Dew Point
33°F
11 PM
41°F
0%
6mph
WSW
Mostly Clear
Humidity
71%
Feels like
37°F
Dew Point
32°F

Friday's Weather Outlook

Friday's Weather Outlook

A snow-filled clipper system is set to sweep through the Great Lakes, Ohio Valley, and Mid-Atlantic.

Weekend Weather Preview

Weekend Weather Preview

Weekly Drought Map for February 5, 2026

Scarce Precipitation Leads to Widespread Drought Degradation

Image courtesy of Pixabay.com

All About Snow Squalls

A person in a pink coat and red mittens holding a snowball. (Image by Dmitriy Gutarev from Pixabay)

Cold Weather and Worsening Health Conditions

Windchill chart

Dangers of Wind Chills

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide