Weather in Sun Valley: August
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Average day temperature: | 74.5°F |
| Average night temperature: | 56.9°F | |
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Number of sunny days: | 23 days |
| Day length: | 13.2 - 14.6 hours | |
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Number of rainy days: | 1 day |
| Precipitation totals: | 0.8 in. | |
| more information | ||
14 days
forecast
forecast
| Sun Valley |
weather in
September
September
| Sun Valley |
Air temperature in August, °F
Show year:
2025
2024
2023
The highest day temperature during August of 2025 was 88°F. At the same time the lowest night temperature was 44°F. Daily and nightly averages during August were 79.0°F and 55.7°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 Sun Valley in August is 0.8 in. Other months of the year show relatively similar values.
Wind speed in August, mph
The average wind speed value in August is 6.3 mph It makes August 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 August is: 10.8.
Best time for vacation in Sun Valley
Sun Valley on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Sun Valley
Local time: 00:39
December 05, friday
0300
23°F
SE
3 mph
3 mph
0600
21°F
SE
4 mph
4 mph
0900
25°F
S
6 mph
6 mph
1200
34°F
NE
2 mph
2 mph
1500
39°F
N
6 mph
6 mph
1800
37°F
E
2 mph
2 mph
2100
37°F
E
3 mph
3 mph
December 06, saturday
0000
34°F
E
8 mph
8 mph
