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Today Hourly 7 days 30 days October
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October 2026 Weather | O'Fallon, Missouri

Today 10/12
Sunny Weather
Day 91°
Night 64°
0
Tue 10/13
Cloudy Weather
Day 93°
Night 72°
8
Wed 10/14
Rainy Weather
Day 75°
Night 68°
95
Thu 10/15
Stormy Weather
Day 79°
Night 52°
88
Fri 10/16
Cloudy Weather
Day 59°
Night 37°
8
Sat 10/17
Cloudy Weather
Day 61°
Night 41°
1
Sun 10/18
Cloudy Weather
Day 66°
Night 48°
9
Mon 10/19
Rainy Weather
Day 70°
Night 54°
60
Tue 10/20
Sunny Weather
Day 72°
Night 54°
4
Wed 10/21
Rainy Weather
Day 72°
Night 55°
57
Thu 10/22
Rainy Weather
Day 72°
Night 52°
60
Fri 10/23
Rainy Weather
Day 66°
Night 48°
75
Sat 10/24
Cloudy Weather
Day 64°
Night 45°
11
Sun 10/25
Sunny Weather
Day 66°
Night 43°
20
Mon 10/26
Cloudy Weather
Day 70°
Night 43°
10
Tue 10/27
Sunny Weather
Day 61°
Night 43°
Wed 10/28
Cloudy Weather
Day 66°
Night 46°
Thu 10/29
Sunny Weather
Day 64°
Night 41°
Fri 10/30
Cloudy Weather
Day 63°
Night 46°
Sat 10/31
Cloudy Weather
Day 68°
Night 46°

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