O'Fallon, Illinois hotel brands & chains

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Weather Forecast for O'Fallon, Illinois

Traveling to O'Fallon, Illinois? 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 12:53 PM and don’t miss the sunset at 11:36 PM. Today’s winds are traveling south at a speed of 8 MPH. The temperature feels like 24 with a humidity level of 87. Cloud coverage is 91 percent with 6.2 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
Wednesday 2/12
Light snow

Wednesday 2/12 Weather forecast for O'Fallon, Illinois, Light snow
32°F
High: 34°F
Low: 18°F
Precipitation: 90%
Today 2/13
Scattered clouds

Thursday 2/13 Weather forecast for O'Fallon, Illinois, Scattered clouds
23°F
High: 29°F
Low: 14°F
Precipitation: 0%
Friday 2/14
Broken clouds

Friday 2/14 Weather forecast for O'Fallon, Illinois, Broken clouds
28°F
High: 41°F
Low: 34°F
Precipitation: 0%
Saturday 2/15
Moderate rain

Saturday 2/15 Weather forecast for O'Fallon, Illinois, Moderate rain
40°F
High: 47°F
Low: 25°F
Precipitation: 90%
Sunday 2/16
Light snow

Sunday 2/16 Weather forecast for O'Fallon, Illinois, Light snow
25°F
High: 28°F
Low: 10°F
Precipitation: 80%
Monday 2/17
Broken clouds

Monday 2/17 Weather forecast for O'Fallon, Illinois, Broken clouds
18°F
High: 27°F
Low: 23°F
Precipitation: 0%

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