Hourly Weather Forecast - Spearfish, SD

12 AM
38°F
10%
3mph
SSW
Clear
Humidity
74%
Feels like
38°F
Dew Point
30°F
1 AM
39°F
10%
4mph
SSW
Clear
Humidity
71%
Feels like
36°F
Dew Point
30°F
2 AM
40°F
10%
4mph
SSW
Clear
Humidity
66%
Feels like
37°F
Dew Point
29°F
3 AM
41°F
10%
5mph
SW
Clear
Humidity
61%
Feels like
37°F
Dew Point
28°F
4 AM
42°F
10%
6mph
SW
Clear
Humidity
58%
Feels like
38°F
Dew Point
28°F
5 AM
43°F
10%
6mph
SW
Clear
Humidity
55%
Feels like
39°F
Dew Point
28°F
6 AM
44°F
10%
6mph
SW
Clear
Humidity
53%
Feels like
41°F
Dew Point
28°F
7 AM
45°F
10%
6mph
SW
Clear
Humidity
51%
Feels like
42°F
Dew Point
28°F
7:30 AM
8 AM
46°F
10%
6mph
SW
Sunny
Humidity
50%
Feels like
42°F
Dew Point
28°F
9 AM
47°F
10%
8mph
SW
Mostly Sunny
Humidity
47%
Feels like
43°F
Dew Point
28°F
10 AM
48°F
10%
9mph
SW
Mostly Sunny
Humidity
44%
Feels like
44°F
Dew Point
27°F
11 AM
49°F
10%
10mph
WSW
Partly Cloudy
Humidity
41%
Feels like
45°F
Dew Point
27°F
12 PM
50°F
10%
10mph
WSW
Mostly Sunny
Humidity
38%
Feels like
50°F
Dew Point
26°F
1 PM
51°F
10%
10mph
WSW
Sunny
Humidity
36%
Feels like
51°F
Dew Point
25°F
2 PM
51°F
10%
9mph
WSW
Sunny
Humidity
35%
Feels like
51°F
Dew Point
24°F
3 PM
50°F
10%
8mph
WSW
Mostly Sunny
Humidity
35%
Feels like
46°F
Dew Point
24°F
4 PM
50°F
0%
6mph
WSW
Mostly Cloudy
Humidity
35%
Feels like
47°F
Dew Point
23°F
4:21 PM
5 PM
50°F
10%
5mph
WSW
Cloudy
Humidity
36%
Feels like
48°F
Dew Point
24°F
6 PM
50°F
10%
6mph
SW
Cloudy
Humidity
37%
Feels like
50°F
Dew Point
25°F
7 PM
49°F
10%
6mph
SW
Cloudy
Humidity
38%
Feels like
47°F
Dew Point
25°F
8 PM
49°F
10%
7mph
WSW
Mostly Cloudy
Humidity
40%
Feels like
46°F
Dew Point
26°F
9 PM
48°F
10%
7mph
WSW
Partly Cloudy
Humidity
42%
Feels like
44°F
Dew Point
26°F
10 PM
47°F
10%
7mph
WSW
Mostly Clear
Humidity
43%
Feels like
43°F
Dew Point
26°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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