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O'Fallon, MO
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October
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October 2026 Weather |
O'Fallon, Missouri
Thu
10/1
Cloudy Weather
Day
81°
Night
57°
Fri
10/2
Cloudy Weather
Day
81°
Night
57°
Sat
10/3
Cloudy Weather
Day
79°
Night
57°
Sun
10/4
Cloudy Weather
Day
81°
Night
57°
Mon
10/5
Cloudy Weather
Day
81°
Night
57°
Tue
10/6
Cloudy Weather
Day
79°
Night
55°
Wed
10/7
Cloudy Weather
Day
79°
Night
55°
Thu
10/8
Cloudy Weather
Day
79°
Night
55°
Fri
10/9
Sunny Weather
Day
79°
Night
55°
Sat
10/10
Cloudy Weather
Day
79°
Night
55°
Sun
10/11
Cloudy Weather
Day
79°
Night
55°
Mon
10/12
Cloudy Weather
Day
75°
Night
52°
Tue
10/13
Rainy Weather
Day
64°
Night
54°
Wed
10/14
Rainy Weather
Day
70°
Night
54°
Thu
10/15
Cloudy Weather
Day
75°
Night
54°
Fri
10/16
Stormy Weather
Day
75°
Night
55°
Sat
10/17
Rainy Weather
Day
73°
Night
46°
Sun
10/18
Stormy Weather
Day
72°
Night
39°
Mon
10/19
Cloudy Weather
Day
61°
Night
41°
Tue
10/20
Rainy Weather
Day
61°
Night
39°
Wed
10/21
Cloudy Weather
Day
63°
Night
39°
Thu
10/22
Cloudy Weather
Day
61°
Night
41°
Fri
10/23
Cloudy Weather
Day
61°
Night
43°
Sat
10/24
Cloudy Weather
Day
61°
Night
46°
Sun
10/25
Cloudy Weather
Day
63°
Night
48°
Mon
10/26
Cloudy Weather
Day
64°
Night
36°
Tue
10/27
Rainy Weather
Day
64°
Night
34°
Wed
10/28
Cloudy Weather
Day
55°
Night
36°
Thu
10/29
Sunny Weather
Day
57°
Night
37°
Fri
10/30
Cloudy Weather
Day
57°
Night
36°
Sat
10/31
Cloudy Weather
Day
57°
Night
34°
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