Monthly
     

Monthly Historical AveragesO'Fallon, MO

Average Temperature
High
19°
Feels 19
Low
8°
Feels 6
Average Precipitation
11 Days
Rain amount
118.6mm
Snow amount
0.2cm
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Daily Historical Averages

S
M
T
W
T
F
S
ForecastSunday, April 12, 2026
Day
Cloudy with sunny breaks
25°Feels 25
Wind
25 km/h S
Gust
38 km/h
Humidity
51%
P.O.P
40%
Rain
<1 mm
Night
Rain
18°Feels 18
Wind
24 km/h SW
Gust
36 km/h
Humidity
92%
P.O.P
100%
Rain
5-10 mm
Historical AveragesApr 12
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.
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