Weather in Spearfish: July
| Average day temperature: | 83.3°F | |
| Average night temperature: | 65.1°F | |
| Number of sunny days: | 20 days | |
| Day length: | 14.7 - 15.5 hours | |
| Number of rainy days: | 1 day | |
| Precipitation totals: | 0.7 in. | |
| more information | ||
14 days
forecast
forecast
| Spearfish |
weather in
August
August
| Spearfish |
Air temperature in July, °F
Show year:
2025
2024
2023
The highest day temperature during July of 2025 was 95°F. At the same time the lowest night temperature was 50°F. Daily and nightly averages during July were 78.1°F and 62.7°F.
Sunny, partly cloudy and cloudy days
Mostly all days in July are sunny but cloudy days are also possible.
Precipitation total in July, in.
Precipitation total value in Spearfish in July is 0.7 in. Other months of the year show relatively similar values.
Wind speed in July, mph
The average wind speed value in July is 7.7 mph It makes July lest windy month 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 July is: 11.2.
Best time for vacation in Spearfish
Spearfish on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Spearfish
Local time: 20:54
January 12, monday
2100

55°F
E
22 mph
22 mph
January 13, tuesday
0000

54°F
E
22 mph
22 mph
0300

52°F
E
17 mph
17 mph
0600

52°F
E
15 mph
15 mph
0900

43°F
SE
12 mph
12 mph
1200

39°F
SE
12 mph
12 mph
1500

41°F
SE
16 mph
16 mph
1800

37°F
SE
17 mph
17 mph



























