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7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Madison, SD
Content continues below
May
Average Temperature
High
20°
Feels 19
Low
9°
Feels 6
Average Precipitation
11 Days
Rain amount
82.7mm
Snow amount
0.1cm
Content continues below
Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
17°
23
23°
24
26°
25
30°
26
28°
27
28°
28
25°
29
24°
30
24°
31
25°
Forecast
Friday, May 22, 2026
Day
17°
Feels 16
Wind
30 km/h E
Gust
45 km/h
Humidity
68%
P.O.P
100%
Rain
20-25 mm
Night
7°
Feels 4
Wind
22 km/h SW
Gust
33 km/h
Humidity
93%
P.O.P
30%
Historical Averages
May 22
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.