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 It makes January one of the most windy months of the year.
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: 19:20
February 05, thursday
2100
55°F
SE
14 mph
14 mph
February 06, friday
0000
52°F
SE
9 mph
9 mph
0300
46°F
SE
9 mph
9 mph
0600
37°F
S
6 mph
6 mph
0900
37°F
NW
3 mph
3 mph
1200
48°F
NW
9 mph
9 mph
1500
54°F
NW
14 mph
14 mph
1800
52°F
N
11 mph
11 mph
