Hourly Weather Forecast - Spearfish, SD

12 AM
29°F
0%
6mph
SW
Clear
Humidity
56%
Feels like
23°F
Dew Point
15°F
1 AM
29°F
0%
6mph
SW
Clear
Humidity
56%
Feels like
23°F
Dew Point
15°F
2 AM
28°F
0%
6mph
SW
Clear
Humidity
55%
Feels like
22°F
Dew Point
14°F
3 AM
28°F
0%
5mph
SW
Clear
Humidity
54%
Feels like
22°F
Dew Point
14°F
4 AM
29°F
0%
5mph
SSW
Mostly Clear
Humidity
53%
Feels like
24°F
Dew Point
14°F
5 AM
30°F
0%
5mph
SSW
Partly Cloudy
Humidity
53%
Feels like
25°F
Dew Point
15°F
6 AM
30°F
0%
4mph
SSW
Partly Cloudy
Humidity
52%
Feels like
26°F
Dew Point
15°F
7 AM
32°F
0%
4mph
SSW
Partly Cloudy
Humidity
50%
Feels like
27°F
Dew Point
15°F
7:28 AM
8 AM
34°F
0%
4mph
S
Partly Cloudy
Humidity
47%
Feels like
30°F
Dew Point
16°F
9 AM
37°F
0%
3mph
S
Partly Cloudy
Humidity
46%
Feels like
37°F
Dew Point
18°F
10 AM
41°F
0%
2mph
SSW
Mostly Cloudy
Humidity
45%
Feels like
41°F
Dew Point
21°F
11 AM
44°F
0%
2mph
SSW
Mostly Cloudy
Humidity
42%
Feels like
44°F
Dew Point
22°F
12 PM
46°F
0%
1mph
SSW
Mostly Cloudy
Humidity
41%
Feels like
46°F
Dew Point
24°F
1 PM
47°F
0%
2mph
SSW
Mostly Cloudy
Humidity
41%
Feels like
47°F
Dew Point
25°F
2 PM
46°F
0%
2mph
S
Mostly Cloudy
Humidity
45%
Feels like
46°F
Dew Point
26°F
3 PM
44°F
10%
2mph
SSE
Cloudy
Humidity
50%
Feels like
44°F
Dew Point
27°F
4 PM
43°F
10%
2mph
SSE
Mostly Cloudy
Humidity
57%
Feels like
43°F
Dew Point
28°F
4:18 PM
5 PM
41°F
10%
2mph
S
Mostly Cloudy
Humidity
63%
Feels like
41°F
Dew Point
30°F
6 PM
41°F
0%
3mph
SSW
Mostly Cloudy
Humidity
68%
Feels like
41°F
Dew Point
31°F
7 PM
41°F
0%
4mph
SW
Cloudy
Humidity
70%
Feels like
38°F
Dew Point
32°F
8 PM
41°F
0%
4mph
WSW
Cloudy
Humidity
70%
Feels like
38°F
Dew Point
31°F
9 PM
40°F
0%
4mph
WSW
Partly Cloudy
Humidity
70%
Feels like
37°F
Dew Point
31°F
10 PM
40°F
0%
5mph
SW
Partly Cloudy
Humidity
68%
Feels like
37°F
Dew Point
30°F
11 PM
41°F
0%
5mph
SW
Clear
Humidity
65%
Feels like
37°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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