Weather in August 2025

Sioux Falls weather in August 2025

The temperatures in Sioux Falls in August are comfortable with low of 15°C and and high up to 28°C.

You can expect about 3 to 8 days of rain in Sioux Falls during the month of August. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

Our weather forecast can give you a great sense of what weather to expect in Sioux Falls in August 2025.

If you’re planning to visit Sioux Falls in the near future, we highly recommend that you review the 14 day weather forecast for Sioux Falls before you arrive.

Temperatures
Temperatures
28° / 15°
Rainy Days
Rainy Days
6
Snowy Days
Snowy Days
0
Dry Days
Dry Days
25
Rainfall
Rainfall
118
mm
10.5
Sun Hours
10.5
Hrs

Sioux Falls annual weather

Month Temperatures Rainy Days Dry Days Snowy Days Rainfall Weather More details
January -5° / -13° 2 15 13 35 mm
Awful
February -4° / -12° 2 15 11 39 mm
Awful
March 6° / -2° 5 17 9 67 mm
Awful
April 13° / 3° 6 20 4 110 mm
Bad
May 20° / 10° 9 22 0 135 mm
Ok
June 25° / 16° 8 22 0 185 mm
Good
July 28° / 17° 6 25 0 109 mm
Perfect
August 28° / 15° 6 25 0 118 mm
Perfect
September 24° / 12° 5 25 0 94 mm
Perfect
October 14° / 5° 4 25 2 83 mm
Ok
November 7° / -1° 2 23 5 33 mm
Bad
December -2° / -9° 3 16 12 43 mm
Awful
Temperatures in Sioux Falls in August
Rain in Sioux Falls in August

Recommended Hotels in Sioux Falls

We know that finding the ideal hotel in Sioux Falls can be a hard task...

That’s why we run our special tools and found the best hotels in Sioux Falls. Click on hotel for more details.

Weather in Sioux Falls in August - FAQ

What is the average temperature in Sioux Falls in August?
The average temperature in Sioux Falls in August is 15/28° C.
What is the chance of rain in Sioux Falls in August?
On average, there are 6 rainy days in Sioux Falls during August.
Weather wise, is August a good time to visit Sioux Falls?
The weather in Sioux Falls in August is perfect.
Can it snow in Sioux Falls in August?
On average, there are 0 snowy days in Sioux Falls in August.
More about the weather in Sioux Falls