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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 10:41 AM and don’t miss the sunset at 1:31 AM. Today’s winds are traveling west at a speed of 4 MPH. The temperature feels like 89 with a humidity level of 73. Cloud coverage is 43 percent with 12.4 percent visibility. Today’s UV index is 1 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
Saturday 7/4
Thunderstorm with rain

Saturday 7/4 Weather forecast for O'Fallon, Missouri, Thunderstorm with rain
84°F
High: 93°F
Low: 71°F
Precipitation: 75%
Today 7/5
Thunderstorm with rain

Sunday 7/5 Weather forecast for O'Fallon, Missouri, Thunderstorm with rain
79°F
High: 88°F
Low: 70°F
Precipitation: 55%
Monday 7/6
Scattered clouds

Monday 7/6 Weather forecast for O'Fallon, Missouri, Scattered clouds
78°F
High: 87°F
Low: 70°F
Precipitation: 0%
Tuesday 7/7
Few clouds

Tuesday 7/7 Weather forecast for O'Fallon, Missouri, Few clouds
79°F
High: 89°F
Low: 70°F
Precipitation: 0%
Wednesday 7/8
Few clouds

Wednesday 7/8 Weather forecast for O'Fallon, Missouri, Few clouds
81°F
High: 93°F
Low: 73°F
Precipitation: 0%
Thursday 7/9
Scattered clouds

Thursday 7/9 Weather forecast for O'Fallon, Missouri, Scattered clouds
83°F
High: 96°F
Low: 75°F
Precipitation: 35%

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