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14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Sioux Falls, SD
Content continues below
May
Average Temperature
High
21°
Feels 21
Low
9°
Feels 8
Average Precipitation
11 Days
Rain amount
79.2mm
Snow amount
0.2cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
22°
4
23°
5
12°
6
11°
7
15°
8
17°
9
20°
10
20°
11
21°
12
23°
13
24°
14
22°
15
20°
16
22°
17
22°
18
19
20
21
22
23
24
25
26
27
28
29
30
31
Forecast
Sunday, May 3, 2026
Day
22°
Feels 22
Wind
20 km/h NW
Gust
30 km/h
Humidity
25%
P.O.P
20%
Night
10°
Feels 7
Wind
18 km/h SW
Gust
27 km/h
Humidity
76%
P.O.P
10%
Historical Averages
May 3
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.