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O Fallon, IL Monthly Weather

Altitude - 159m | 38°35′24″N,89°54′36″W | map (OSM)

O Fallon, IL
83
°F
3 pmMostly Cloudy5mphNE
Fri, August 22, 20253:48 PM (GMT -05:00)

August

SunMonTueWedThu
Aug 22
Partly Cloudy
81
°F
low63
°F
Aug 23
Mostly Cloudy
83
°F
low63
°F
Aug 24
Clear
78
°F
low60
°F
Aug 25
Mostly Cloudy
75
°F
low56
°F
Aug 26
Clear
75
°F
low51
°F
Aug 27
Clear
77
°F
low49
°F
Aug 28
Partly Cloudy
79
°F
low53
°F
Aug 29
Mostly Cloudy
79
°F
low57
°F
Aug 30
Mostly Cloudy
79
°F
low61
°F
Aug 31
Partly Cloudy
77
°F
low63
°F
MonTueWedThuFriSat

September

Sun
Sep 1
Few Showers
77
°F
low63
°F
Sep 2
Few Showers
80
°F
low63
°F
Sep 3
Partly Cloudy
83
°F
low62
°F
Sep 4
Partly Cloudy
81
°F
low62
°F
Fri
Sep 5
Partly Sunny
79
°F
low59
°F
Sat
Sep 6
Sunny
85
°F
low62
°F
Sun
Sep 7
Sunny
86
°F
low59
°F
Mon
Sep 8
Intermittent Clouds
81
°F
low55
°F
Tue
Sep 9
Sunny
79
°F
low56
°F
Wed
Sep 10
Sunny
82
°F
low66
°F
Thu
Sep 11
Mostly Sunny
87
°F
low69
°F
Fri
Sep 12
Mostly Sunny
88
°F
low64
°F
Sat
Sep 13
Sunny
88
°F
low69
°F
Sun
Sep 14
Partly Sunny , Showers
89
°F
low64
°F
Mon
Sep 15
Mostly Sunny
80
°F
low57
°F
Tue
Sep 16
Sunny
83
°F
low64
°F
Wed
Sep 17
Partly Sunny , Showers
88
°F
low65
°F
Thu
Sep 18
Intermittent Clouds
89
°F
low66
°F
Fri
Sep 19
Partly Sunny , T-Storms
85
°F
low69
°F
Sat
Sep 20
Partly Sunny , T-Storms
84
°F
low67
°F
Last updated 4h 8min ago

Temperature in O Fallon, IL for month

* O Fallon, IL Monthly weather is based on statistical data for the last 10 years. It is intended for personal use on an "as is" basis. This page provides the weather forecast for the next 30 days. In this forecast option you can see precipitation icons and maximum air temperature. The first 14 days reflect the current weather forecast for O Fallon, IL, and the following days reflect the weather based on statistical data from the last few years of measurements. This weather forecast will be useful for a general understanding of weather changes the nearest month for O Fallon, IL. Please note that long-term forecasts are not a forecast as such, but only reflect the statistics of past years.