The Weather Network
Weather
Maps
News
Video
|
Welcome
Monthly
Forecasts
Current
Hourly
7 Days
14 Days
Monthly
°C
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Spearfish, SD
Content continues below
December
Average Temperature
High
2°
Feels -1
Low
-8°
Feels -13
Average Precipitation
10 Days
Rain amount
37.4mm
Snow amount
131.9cm
Content continues below
Daily Historical Averages
December 2025
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
16°
25
17°
26
13°
27
7°
28
-6°
29
6°
30
6°
31
2°
Forecast
Wednesday, December 24, 2025
Day
16°
Feels 16
Wind
16 km/h SW
Gust
24 km/h
Humidity
27%
P.O.P
10%
Night
7°
Feels 3
Wind
42 km/h SW
Gust
63 km/h
Humidity
61%
P.O.P
20%
Historical Averages
Dec 24
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.