The Weather Network
Weather
Maps
News
Video
|
Welcome
Monthly
⋮
Current
Hourly
7 Days
14 Days
Weekend
Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Chesterfield, MO
Content continues below
Content continues below
Daily Historical Averages
August 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
28°
21
29°
22
29°
23
28°
24
27°
25
29°
26
30°
27
29°
28
30°
29
30°
30
30°
31
29°
Forecast
Thursday, August 20, 2026
Day
28°
Feels 30
Wind
10 km/h N
Gust
15 km/h
Humidity
61%
P.O.P
40%
Rain
<1 mm
Night
18°
Feels 18
Wind
9 km/h NE
Gust
14 km/h
Humidity
100%
P.O.P
0%
Historical Averages
Aug 20
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.
August
Average Temperature
High
30°
Feels 33
Low
20°
Feels 20
Average Precipitation
9 Days
Rain amount
73.4mm
Snow amount
0cm