Hourly Weather Forecast - Keystone, SD

12 AM
42°F
0%
7mph
W
Clear
Humidity
64%
Feels like
38°F
Dew Point
31°F
1 AM
42°F
0%
8mph
W
Clear
Humidity
61%
Feels like
37°F
Dew Point
29°F
2 AM
41°F
0%
8mph
W
Clear
Humidity
59%
Feels like
36°F
Dew Point
28°F
3 AM
40°F
0%
8mph
W
Clear
Humidity
58%
Feels like
35°F
Dew Point
27°F
4 AM
40°F
0%
9mph
WNW
Clear
Humidity
57%
Feels like
34°F
Dew Point
26°F
5 AM
40°F
0%
9mph
WNW
Mostly Clear
Humidity
55%
Feels like
34°F
Dew Point
25°F
6 AM
40°F
0%
10mph
WNW
Partly Cloudy
Humidity
54%
Feels like
34°F
Dew Point
25°F
7 AM
42°F
0%
11mph
W
Mostly Clear
Humidity
51%
Feels like
35°F
Dew Point
25°F
7:26 AM
8 AM
44°F
0%
12mph
W
Mostly Sunny
Humidity
45%
Feels like
38°F
Dew Point
25°F
9 AM
49°F
0%
12mph
W
Partly Cloudy
Humidity
38%
Feels like
44°F
Dew Point
24°F
10 AM
53°F
0%
12mph
W
Mostly Sunny
Humidity
32%
Feels like
53°F
Dew Point
24°F
11 AM
57°F
0%
13mph
W
Mostly Sunny
Humidity
28%
Feels like
57°F
Dew Point
24°F
12 PM
58°F
0%
13mph
W
Mostly Sunny
Humidity
27%
Feels like
58°F
Dew Point
24°F
1 PM
57°F
0%
13mph
WSW
Partly Cloudy
Humidity
27%
Feels like
57°F
Dew Point
24°F
2 PM
56°F
0%
12mph
WSW
Partly Cloudy
Humidity
29%
Feels like
56°F
Dew Point
24°F
3 PM
53°F
0%
11mph
WSW
Partly Cloudy
Humidity
31%
Feels like
53°F
Dew Point
24°F
4 PM
51°F
0%
10mph
SW
Mostly Sunny
Humidity
34%
Feels like
51°F
Dew Point
24°F
4:21 PM
5 PM
50°F
0%
10mph
SW
Mostly Clear
Humidity
37%
Feels like
46°F
Dew Point
24°F
6 PM
49°F
0%
10mph
SW
Mostly Clear
Humidity
39%
Feels like
45°F
Dew Point
25°F
7 PM
49°F
0%
11mph
WSW
Clear
Humidity
40%
Feels like
44°F
Dew Point
26°F
8 PM
48°F
0%
11mph
WSW
Clear
Humidity
43%
Feels like
43°F
Dew Point
26°F
9 PM
47°F
0%
11mph
WSW
Clear
Humidity
44%
Feels like
42°F
Dew Point
26°F
10 PM
46°F
0%
11mph
WSW
Clear
Humidity
46%
Feels like
41°F
Dew Point
27°F
11 PM
46°F
0%
11mph
WSW
Clear
Humidity
46%
Feels like
41°F
Dew Point
27°F

Snow and Ice Forecast through Saturday

Snow, Ice Target the Eastern U.S.

A wintry mix of snow, sleet, and ice will target the eastern U.S. Friday into Saturday.

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Friday's Weather Outlook

Extended Christmas Weekend Weather Outlook

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

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Christmas Tree via Pixabay

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