O'Fallon, Missouri hotel brands & chains

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Weather Forecast for O'Fallon, Missouri

Traveling to O'Fallon, Missouri? Here is your 6-day weather forecast in the area. Whether it is a warm weather destinations or cold climate don’t forget to consider weather, while you pack your bags for this trip. Start your day when the sunrises at 10:42 AM and don’t miss the sunset at 1:15 AM. Today’s winds are traveling east-southeast at a speed of 4 MPH. The temperature feels like 71 with a humidity level of 78. Cloud coverage is 44 percent with 11.9 percent visibility. Today’s UV index is 8 make sure to prepare properly. Make sure to plan your travel itinerary to match your travel weather forecast to make the most of your vacation with Reservations.com.


Fahrenheit / Celsius
Today 5/23
Broken clouds

Thursday 5/23 Weather forecast for O'Fallon, Missouri, Broken clouds
70°F
High: 81°F
Low: 67°F
Precipitation: 25%
Friday 5/24
Thunderstorm with rain

Friday 5/24 Weather forecast for O'Fallon, Missouri, Thunderstorm with rain
74°F
High: 85°F
Low: 59°F
Precipitation: 70%
Saturday 5/25
Few clouds

Saturday 5/25 Weather forecast for O'Fallon, Missouri, Few clouds
71°F
High: 82°F
Low: 67°F
Precipitation: 45%
Sunday 5/26
Thunderstorm with heavy rain
Sunday 5/26 Weather forecast for O'Fallon, Missouri, Thunderstorm with heavy rain
73°F
High: 82°F
Low: 61°F
Precipitation: 90%
Monday 5/27
Thunderstorm with rain

Monday 5/27 Weather forecast for O'Fallon, Missouri, Thunderstorm with rain
69°F
High: 76°F
Low: 59°F
Precipitation: 70%
Tuesday 5/28
Few clouds

Tuesday 5/28 Weather forecast for O'Fallon, Missouri, Few clouds
63°F
High: 73°F
Low: 57°F
Precipitation: 25%

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