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O Fallon, IL Monthly Weather

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

O Fallon, IL
68
°F
11 pmFair2mphSE
Mon, September 22, 202511:36 PM (GMT -05:00)

September

Sun
Sep 22
Showers
77
°F
low65
°F
Sep 23
Scattered Thunderstorms
80
°F
low65
°F
Sep 24
Scattered Thunderstorms
73
°F
low64
°F
Sep 25
Partly Cloudy
73
°F
low60
°F
Sep 26
Clear
77
°F
low55
°F
Sep 27
Clear
82
°F
low54
°F
Sep 28
Clear
82
°F
low55
°F
Sep 29
Mostly Clear
82
°F
low55
°F
Sep 30
Mostly Cloudy
81
°F
low58
°F
WedThuFriSat

October

SunMonTue
Oct 1
Partly Cloudy
82
°F
low58
°F
Oct 2
Partly Cloudy
80
°F
low57
°F
Oct 3
Partly Cloudy
77
°F
low57
°F
Oct 4
Partly Cloudy
74
°F
low56
°F
Oct 5
Partly Cloudy
77
°F
low55
°F
Mon
Oct 6
Partly Sunny , T-Storms
75
°F
low62
°F
Tue
Oct 7
Mostly Cloudy , T-Storms
74
°F
low59
°F
Wed
Oct 8
Sunny
81
°F
low62
°F
Thu
Oct 9
Intermittent Clouds
86
°F
low66
°F
Fri
Oct 10
Sunny
87
°F
low68
°F
Sat
Oct 11
Mostly Cloudy , T-Storms
75
°F
low54
°F
Sun
Oct 12
Sunny
78
°F
low56
°F
Mon
Oct 13
Mostly Cloudy , T-Storms
80
°F
low66
°F
Tue
Oct 14
Rain
70
°F
low61
°F
Wed
Oct 15
T-Storms
66
°F
low43
°F
Thu
Oct 16
Sunny
62
°F
low40
°F
Fri
Oct 17
Sunny
71
°F
low42
°F
Sat
Oct 18
Sunny
75
°F
low44
°F
Sun
Oct 19
Mostly Sunny
72
°F
low49
°F
Mon
Oct 20
Mostly Sunny
78
°F
low50
°F
Tue
Oct 21
Intermittent Clouds
57
°F
low47
°F
WedThuFriSat
Last updated 4h 2min 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.