Weather in Boise: August
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Average day temperature: | 86.0°F |
| Average night temperature: | 68.2°F | |
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Number of sunny days: | 26 days |
| Day length: | 13.2 - 14.6 hours | |
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Number of rainy days: | 1 day |
| Precipitation totals: | 0.5 in. | |
| more information | ||
14 days
forecast
forecast
| Boise |
weather in
September
September
| Boise |
Air temperature in August, °F
Show year:
2025
2024
2023
The highest day temperature during August of 2025 was 95°F. At the same time the lowest night temperature was 58°F. Daily and nightly averages during August were 86.3°F and 64.8°F.
Sunny, partly cloudy and cloudy days
Mostly all days in August are sunny but cloudy days are also possible.
Precipitation total in August, in.
Precipitation total value in Boise in August is 0.5 in. Other months of the year show relatively similar values.
Wind speed in August, mph
The average wind speed value in August is 6.1 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 August is: 11.8.
Best time for vacation in Boise
Boise on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Boise
Local time: 00:24
January 10, saturday
0300
34°F
W
4 mph
4 mph
0600
30°F
SW
4 mph
4 mph
0900
28°F
W
2 mph
2 mph
1200
36°F
NW
4 mph
4 mph
1500
39°F
NW
6 mph
6 mph
1800
34°F
NW
4 mph
4 mph
2100
28°F
W
4 mph
4 mph
January 11, sunday
0000
27°F
W
5 mph
5 mph
