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 12:09 PM and don’t miss the sunset at 12:11 AM. Today’s winds are traveling south at a speed of 13 MPH. The temperature feels like 56 with a humidity level of 36. Cloud coverage is 12 percent with 14.9 percent visibility. Today’s UV index is 0 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
Monday 3/17
Few clouds

Monday 3/17 Weather forecast for O'Fallon, Missouri, Few clouds
60°F
High: 68°F
Low: 52°F
Precipitation: 0%
Today 3/18
Broken clouds

Tuesday 3/18 Weather forecast for O'Fallon, Missouri, Broken clouds
65°F
High: 79°F
Low: 58°F
Precipitation: 0%
Wednesday 3/19
Broken clouds

Wednesday 3/19 Weather forecast for O'Fallon, Missouri, Broken clouds
61°F
High: 73°F
Low: 33°F
Precipitation: 35%
Thursday 3/20
Mix snow/rain

Thursday 3/20 Weather forecast for O'Fallon, Missouri, Mix snow/rain
43°F
High: 52°F
Low: 36°F
Precipitation: 55%
Friday 3/21
Broken clouds

Friday 3/21 Weather forecast for O'Fallon, Missouri, Broken clouds
50°F
High: 62°F
Low: 42°F
Precipitation: 0%
Saturday 3/22
Scattered clouds

Saturday 3/22 Weather forecast for O'Fallon, Missouri, Scattered clouds
52°F
High: 60°F
Low: 46°F
Precipitation: 40%

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