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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Sioux Falls, SD
Content continues below
August
Average Temperature
High
28°
Feels 29
Low
17°
Feels 16
Average Precipitation
8 Days
Rain amount
67.4mm
Snow amount
0cm
Content continues below
Daily Historical Averages
August 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
30°
9
29°
10
28°
11
31°
12
31°
13
27°
14
27°
15
27°
16
24°
17
26°
18
26°
19
27°
20
28°
21
28°
22
28°
23
24
25
26
27
28
29
30
31
Forecast
Saturday, August 8, 2026
Day
30°
Feels 30
Wind
21 km/h S
Gust
30 km/h
Humidity
38%
P.O.P
10%
Night
20°
Feels 20
Wind
22 km/h SE
Gust
30 km/h
Humidity
100%
P.O.P
60%
Rain
~5 mm
Historical Averages
Aug 8
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.