Weather in Sioux City: August
 |
Average day temperature: | 84.4°F |
| Average night temperature: | 66.3°F | |
 |
Number of sunny days: | 16 days |
| Day length: | 13.2 - 14.5 hours | |
 |
Number of rainy days: | 1 day |
| Precipitation totals: | 0.6 in. | |
| more information | ||
14 days
forecast
forecast
| Sioux City |
weather in
September
September
| Sioux City |
Air temperature in August, °F
Show year:
2025
2024
2023
The highest day temperature during August of 2025 was 96°F. At the same time the lowest night temperature was 42°F. Daily and nightly averages during August were 82.1°F and 62.8°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 Sioux City in August is 0.6 in. Other months of the year show relatively similar values.
Wind speed in August, mph
The average wind speed value in August is 9.2 mph It makes August one of the least 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: 9.4.
Best time for vacation in Sioux City
Sioux City on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Sioux City
Local time: 17:11
December 14, sunday
1800
21°F
N
13 mph
13 mph
2100
18°F
N
17 mph
17 mph
December 15, monday
0000
16°F
N
17 mph
17 mph
0300
16°F
N
14 mph
14 mph
0600
16°F
N
9 mph
9 mph
0900
18°F
N
4 mph
4 mph
1200
25°F
SE
6 mph
6 mph
1500
30°F
SE
6 mph
6 mph
