Hourly Weather Forecast - Spearfish, SD

12 AM
42°F
0%
6mph
SW
Clear
Humidity
64%
Feels like
38°F
Dew Point
31°F
1 AM
43°F
0%
6mph
SW
Clear
Humidity
62%
Feels like
39°F
Dew Point
31°F
2 AM
44°F
0%
7mph
SW
Clear
Humidity
60%
Feels like
40°F
Dew Point
31°F
3 AM
45°F
0%
8mph
SW
Clear
Humidity
57%
Feels like
41°F
Dew Point
31°F
4 AM
46°F
0%
8mph
SW
Clear
Humidity
56%
Feels like
42°F
Dew Point
31°F
5 AM
47°F
0%
9mph
SW
Clear
Humidity
55%
Feels like
43°F
Dew Point
32°F
6 AM
49°F
0%
9mph
SW
Clear
Humidity
54%
Feels like
44°F
Dew Point
33°F
7 AM
50°F
0%
10mph
SW
Clear
Humidity
51%
Feels like
50°F
Dew Point
33°F
7:29 AM
8 AM
52°F
0%
11mph
WSW
Sunny
Humidity
49%
Feels like
52°F
Dew Point
34°F
9 AM
54°F
0%
12mph
WSW
Sunny
Humidity
47%
Feels like
54°F
Dew Point
35°F
10 AM
55°F
0%
13mph
WSW
Sunny
Humidity
46%
Feels like
55°F
Dew Point
35°F
11 AM
57°F
0%
13mph
WSW
Sunny
Humidity
44%
Feels like
57°F
Dew Point
35°F
12 PM
58°F
0%
13mph
WSW
Mostly Sunny
Humidity
42%
Feels like
58°F
Dew Point
35°F
1 PM
58°F
0%
11mph
W
Mostly Sunny
Humidity
42%
Feels like
58°F
Dew Point
34°F
2 PM
56°F
0%
10mph
W
Mostly Sunny
Humidity
43%
Feels like
56°F
Dew Point
34°F
3 PM
54°F
0%
9mph
W
Partly Cloudy
Humidity
47%
Feels like
54°F
Dew Point
34°F
4 PM
51°F
0%
7mph
W
Partly Cloudy
Humidity
54%
Feels like
51°F
Dew Point
35°F
4:18 PM
5 PM
47°F
0%
5mph
W
Partly Cloudy
Humidity
61%
Feels like
45°F
Dew Point
35°F
6 PM
45°F
0%
4mph
W
Partly Cloudy
Humidity
66%
Feels like
43°F
Dew Point
35°F
7 PM
44°F
0%
4mph
W
Partly Cloudy
Humidity
68%
Feels like
42°F
Dew Point
34°F
8 PM
42°F
0%
3mph
WSW
Partly Cloudy
Humidity
68%
Feels like
41°F
Dew Point
33°F
9 PM
41°F
0%
3mph
WSW
Partly Cloudy
Humidity
71%
Feels like
41°F
Dew Point
32°F
10 PM
39°F
0%
2mph
SW
Partly Cloudy
Humidity
72%
Feels like
39°F
Dew Point
31°F
11 PM
38°F
0%
2mph
SSW
Mostly Clear
Humidity
74%
Feels like
38°F
Dew Point
30°F

Rain And Snow Totals Through Monday

Atmospheric River Impacts Northern California

The plume of abundant moisture impacting the Northwest the last several days will focus more on Northern California through Monday bringing heavy rainfall and mountain snow.

NOAA, NCDC

White Christmas? What Are The Odds

Sunday's Weather Outlook

Sunday's Weather Outlook

Cold weather

During Extreme Cold: Watch for Frostbite!

Flu Update Valid For Week Ending December 13, 2025

Weekly Flu Update: Flu Spreading Hard Across U.S.

Watch vs. Warning

Flash Flood Watch and Warning Defined

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