Weather in O'Fallon, Missouri, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for O'Fallon
Today |
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Temperature: 87°F Wind Speed: 2 to 7 mph Wind Direction: S Forecast: A chance of rain showers between 8am and 10am, then a chance of showers and thunderstorms between 10am and noon, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 87. South wind 2 to 7 mph. Chance of precipitation is 30%. |
Tonight |
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Temperature: 71°F Wind Speed: 2 to 6 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms before 2am, then showers and thunderstorms likely between 2am and 5am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Southwest wind 2 to 6 mph. Chance of precipitation is 70%. |
Monday |
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Temperature: 86°F Wind Speed: 5 to 9 mph Wind Direction: W Forecast: A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 10am, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. West wind 5 to 9 mph. Chance of precipitation is 50%. |
Monday Night |
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Temperature: 68°F Wind Speed: 3 to 7 mph Wind Direction: NW Forecast: Showers and thunderstorms likely before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 68. Northwest wind 3 to 7 mph. Chance of precipitation is 70%. |
Tuesday |
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Temperature: 86°F Wind Speed: 6 mph Wind Direction: NW Forecast: Sunny, with a high near 86. Northwest wind around 6 mph. |
Tuesday Night |
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Temperature: 66°F Wind Speed: 1 to 5 mph Wind Direction: NW Forecast: Mostly clear, with a low around 66. |
Wednesday |
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Temperature: 89°F Wind Speed: 3 mph Wind Direction: NW Forecast: Sunny, with a high near 89. |
Wednesday Night |
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Temperature: 69°F Wind Speed: 2 mph Wind Direction: S Forecast: Mostly clear, with a low around 69. |
Thursday |
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Temperature: 92°F Wind Speed: 3 mph Wind Direction: SW Forecast: Sunny, with a high near 92. |
Thursday Night |
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Temperature: 72°F Wind Speed: 3 mph Wind Direction: S Forecast: Mostly clear, with a low around 72. |
Independence Day |
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Temperature: 93°F Wind Speed: 3 to 7 mph Wind Direction: S Forecast: A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. Chance of precipitation is 20%. |
Friday Night |
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Temperature: 73°F Wind Speed: 6 mph Wind Direction: S Forecast: A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 73. Chance of precipitation is 20%. |
Saturday |
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Temperature: 93°F Wind Speed: 8 mph Wind Direction: SW Forecast: A slight chance of rain showers between 7am and 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 93. Chance of precipitation is 20%. |
Saturday Night |
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Temperature: 75°F Wind Speed: 7 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 75. Chance of precipitation is 30%. |