Hourly Weather Forecast - Keystone, SD

12 AM
13°F
0%
7mph
NW
Clear
Humidity
39%
Feels like
2°F
Dew Point
-7°F
1 AM
14°F
0%
6mph
NW
Clear
Humidity
36%
Feels like
5°F
Dew Point
-8°F
2 AM
15°F
0%
6mph
NW
Clear
Humidity
35%
Feels like
7°F
Dew Point
-8°F
3 AM
15°F
0%
5mph
NW
Clear
Humidity
35%
Feels like
8°F
Dew Point
-7°F
4 AM
15°F
0%
5mph
WNW
Clear
Humidity
36%
Feels like
8°F
Dew Point
-7°F
5 AM
15°F
0%
4mph
WNW
Clear
Humidity
36%
Feels like
8°F
Dew Point
-7°F
6 AM
16°F
0%
4mph
W
Clear
Humidity
37%
Feels like
8°F
Dew Point
-6°F
7 AM
17°F
0%
4mph
W
Clear
Humidity
37%
Feels like
10°F
Dew Point
-5°F
7:27 AM
8 AM
20°F
0%
4mph
W
Sunny
Humidity
34%
Feels like
14°F
Dew Point
-4°F
9 AM
25°F
0%
4mph
WSW
Mostly Sunny
Humidity
29%
Feels like
19°F
Dew Point
-3°F
10 AM
31°F
0%
4mph
WSW
Partly Cloudy
Humidity
24%
Feels like
26°F
Dew Point
-1°F
11 AM
35°F
0%
4mph
WSW
Partly Cloudy
Humidity
21%
Feels like
32°F
Dew Point
0°F
12 PM
38°F
0%
4mph
WSW
Mostly Cloudy
Humidity
20%
Feels like
35°F
Dew Point
1°F
1 PM
39°F
0%
4mph
W
Mostly Cloudy
Humidity
21%
Feels like
36°F
Dew Point
2°F
2 PM
37°F
0%
4mph
WNW
Mostly Cloudy
Humidity
22%
Feels like
34°F
Dew Point
2°F
3 PM
35°F
0%
4mph
W
Partly Cloudy
Humidity
25%
Feels like
32°F
Dew Point
3°F
4 PM
32°F
0%
4mph
W
Mostly Sunny
Humidity
29%
Feels like
29°F
Dew Point
4°F
4:23 PM
5 PM
30°F
0%
4mph
W
Mostly Clear
Humidity
34%
Feels like
26°F
Dew Point
5°F
6 PM
28°F
0%
5mph
W
Clear
Humidity
39%
Feels like
23°F
Dew Point
6°F
7 PM
27°F
0%
6mph
W
Mostly Clear
Humidity
42%
Feels like
20°F
Dew Point
7°F
8 PM
26°F
0%
6mph
W
Partly Cloudy
Humidity
46%
Feels like
19°F
Dew Point
8°F
9 PM
26°F
0%
7mph
W
Partly Cloudy
Humidity
46%
Feels like
19°F
Dew Point
8°F
10 PM
27°F
0%
7mph
W
Partly Cloudy
Humidity
44%
Feels like
20°F
Dew Point
9°F
11 PM
29°F
0%
7mph
W
Cloudy
Humidity
41%
Feels like
22°F
Dew Point
9°F

Snow Forecast Through Monday

Powerful Winter Storm Taking Shape Across the Upper Midwest

A major winter storm is taking aim at the Upper Midwest and Great Lakes.

Snow and Ice Forecast through Saturday

Heavy Snow, Dangerous Icy Mix Eye Mid-Atlantic to New England

Saturday's Weather Outlook

Weekend Weather Outlook

Photos and videos from the Palisades Fire that started in the City of Los Angeles, January 8, 2025. (CAL FIRE_Official via Wikimedia Commons)

2025 Year in Review: Billion Dollar Disasters - The California Wildfires

Hurricane Erick at its peak intensity before making landfall on Guerrero, Mexico on June 19, 2025 (NOAA/Wikimedia Commons)

2025 Year in Review: Active Tropical Season for The Pacific

Christmas Tree via Pixabay

How Drought Impacts Your Christmas Trees

loading ad...

Today's National Outlook

Hurricane Tracker

Allergy Forecast

Snow & Ski Forecast

Traffic Cameras

Weather Cameras

Traffic Cameras

Weather Cameras

Outdoor Sports Guide