Weather in Rapid City: January
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Average day temperature: | 33.1°F |
| Average night temperature: | 22.5°F | |
 |
Number of sunny days: | 15 days |
| Day length: | 8.9 - 9.8 hours | |
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Number of rainy days: | 0 days |
| Precipitation totals: | 0.2 in. | |
| more information | ||
14 days
forecast
forecast
| Rapid City |
weather in
February
February
| Rapid City |
Air temperature in January, °F
Show year:
2026
2025
2024
The highest day temperature during January of 2026 was 61°F. At the same time the lowest night temperature was -7°F. Daily and nightly averages during January were 37.9°F and 25.4°F.
Sunny, partly cloudy and cloudy days
Mostly all days in January are sunny but cloudy days are also possible.
Precipitation total in January, in.
Precipitation total value in Rapid City in January is 0.2 in. Other months of the year show relatively similar values.
Wind speed in January, mph
The average wind speed value in January is 8.9 mph
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in January is: 6.1.
Best time for vacation in Rapid City
Rapid City on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Rapid City
Local time: 05:07
September 19, saturday
0600
59°F
NW
5 mph
5 mph
0900
59°F
N
3 mph
3 mph
1200
66°F
NW
6 mph
6 mph
1500
64°F
W
9 mph
9 mph
1800
61°F
W
7 mph
7 mph
2100
59°F
W
9 mph
9 mph
September 20, sunday
0000
57°F
NW
8 mph
8 mph
0300
57°F
NW
6 mph
6 mph
