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Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Downtown, St. Louis, MO
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May
Average Temperature
High
25°
Feels 26
Low
14°
Feels 14
Average Precipitation
14 Days
Rain amount
132.9mm
Snow amount
0cm
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
20°
21
23°
22
21°
23
27°
24
28°
25
27°
26
28°
27
30°
28
30°
29
30°
30
32°
31
32°
Forecast
Wednesday, May 20, 2026
Day
20°
Feels 20
Wind
16 km/h N
Gust
24 km/h
Humidity
61%
P.O.P
40%
Rain
<1 mm
Night
12°
Feels 10
Wind
13 km/h NE
Gust
19 km/h
Humidity
83%
P.O.P
30%
Historical Averages
May 20
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.