Sioux Falls in august: average Weather, Temperature and Climate
Weather in Sioux Falls in august 2025
The weather in Sioux Falls in august comes from statistical datas on the past years. You can view the weather statistics for all the month, but also by using the tabs for the beginning, the middle and the end of the month.
Average weather throughout august
good weather UV index: 6
Weather at 6am
61°F
Clear/Sunny
42% of time
21%
14%
13%
Weather at 12pm
81°F
Clear/Sunny
55% of time
21%
10%
7%
Weather at 6pm
79°F
Clear/Sunny
56% of time
22%
9%
7%
Weather at 3am
63°F
45%
17%
16%
14%
Evolution of daily average temperature and precipitation in Sioux Falls in august
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Sioux Falls in august.
The climate of Sioux Falls in august is good
The weather in august in Sioux Falls is wet (with 4.8in of rainfall over 7 days). It should be noted a worsening from the previous month since in july there is an average of 4.4in of rainfall over 6 days.
The climate nice in that area this month. The high seasonal norm is 83°F. The minimum is 61°F. Thus, the mean temperature average in august in Sioux Falls is 72°F. These temperatures are far removed from those records observed in Sioux Falls in august with a maximum record of 106°F in 2021 and a minimum record of 41°F in 2009. You can plan to have about 10 days with temperatures up to 86°F, or 32 of time.
On average, in Sioux Falls, the days of august last 13:58. Sunrise is at 05:32 and sunset is at 19:30.
With good weather conditions, august is a good time to go in this locality in United States.
Seasonal average climate and temperature of Sioux Falls in august
Check below seasonal norms These datas are compiled from the weather statements earlier years of august.
| August | |||||
| Outside temperature | |||||
| Average temperature | 72°F | ||||
| Highest temperature | 83°F | ||||
| Lowest temperature | 61°F | ||||
| Highest record temperature | 106°F (2021) | ||||
| Lowest record temperature | 41°F (2009) | ||||
| Number of days at +86°F | 10 day(s) (32%) | ||||
| Number of days at +65°F | 31 day(s) (100%) | ||||
| Wind | |||||
| Wind speed | 18km/h | ||||
| Wind temperature | 61°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 4.8in | ||||
| Number of days with rainfall | 7 day(s) (23%) | ||||
| Record daily rainfall | 2.2in (2017) | ||||
| Other climate data | |||||
| Humidity | 88% | ||||
| Visibility | 8.99km | ||||
| Cloud cover | 29% | ||||
| UV index | 6 | ||||
| Daily sunshine hours | 14 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 05:32 | ||||
| Time of sunset | 19:30 | ||||
| Length of day | 13:58 | ||||
| Our opinion about the weather in august | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last august?
Here is the day by day recorded weather in Sioux Falls in august 2024:
63°F to 81°F
65°F to 88°F
68°F to 90°F
68°F to 92°F
68°F to 79°F
59°F to 74°F
58°F to 77°F
54°F to 70°F
49°F to 72°F
50°F to 76°F
58°F to 70°F
59°F to 70°F
58°F to 79°F
63°F to 70°F
63°F to 81°F
63°F to 79°F
59°F to 79°F
59°F to 81°F
61°F to 85°F
65°F to 70°F
59°F to 83°F
67°F to 88°F
59°F to 81°F
68°F to 79°F
68°F to 101°F
72°F to 103°F
67°F to 83°F
63°F to 92°F
76°F to 86°F
61°F to 85°F
58°F to 95°F
Map: other cities in the United States (USA) in august
Cities near Sioux Falls:
| Minneapolis (Minnesota) in august | perfect weather |
| Des Moines in august | good weather |
| Kansas City in august | good weather |
| Kansas in august | good weather |
| Mount Rushmore in august | good weather |
| North Dakota in august | good weather |
| Wisconsin in august | good weather |
| Illinois in august | good weather |
| Missouri in august | good weather |
| Chicago in august | good weather |
| St. Louis (Missouri) in august | good weather |
| Denver in august | perfect weather |
Click over cities on the map for information about the weather in august.
Sioux Falls
perfect weather
good
tolerable
bad
very bad
Weather data for Sioux Falls in august:
Weather data for Sioux Falls for august are derived from an average of the weather forecast since 2009 in Sioux Falls. There is a margin of error and these forecasts are to be considered as general information only. The weather in Sioux Falls can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Sioux Falls.