Weather in O'Fallon, Missouri, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for O'Fallon
Tonight |
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Temperature: 65°F Wind Speed: 3 mph Wind Direction: SE Forecast: Mostly clear, with a low around 65. Southeast wind around 3 mph. |
Tuesday |
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Temperature: 94°F Wind Speed: 5 mph Wind Direction: SE Forecast: Mostly sunny, with a high near 94. Southeast wind around 5 mph. |
Tuesday Night |
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Temperature: 74°F Wind Speed: 3 to 7 mph Wind Direction: S Forecast: Mostly clear, with a low around 74. South wind 3 to 7 mph. |
Wednesday |
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Temperature: 96°F Wind Speed: 3 to 7 mph Wind Direction: SW Forecast: A slight chance of rain showers between 7am and 1pm, then showers and thunderstorms likely. Mostly sunny, with a high near 96. Heat index values as high as 106. Southwest wind 3 to 7 mph. Chance of precipitation is 60%. |
Wednesday Night |
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Temperature: 69°F Wind Speed: 3 mph Wind Direction: W Forecast: Showers and thunderstorms. Mostly cloudy, with a low around 69. West wind around 3 mph. Chance of precipitation is 90%. |
Thursday |
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Temperature: 82°F Wind Speed: 3 mph Wind Direction: NW Forecast: Rain showers before 7am, then showers and thunderstorms likely between 7am and 1pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Chance of precipitation is 90%. |
Thursday Night |
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Temperature: 63°F Wind Speed: 1 mph Wind Direction: NE Forecast: A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 63. Chance of precipitation is 20%. |
Friday |
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Temperature: 86°F Wind Speed: 1 to 5 mph Wind Direction: SE Forecast: A slight chance of rain showers after 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%. |
Friday Night |
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Temperature: 67°F Wind Speed: 3 mph Wind Direction: S Forecast: A slight chance of rain showers before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 40%. |
Saturday |
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Temperature: 89°F Wind Speed: 5 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 40%. |
Saturday Night |
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Temperature: 67°F Wind Speed: 2 mph Wind Direction: S Forecast: A slight chance of showers and thunderstorms. Mostly clear, with a low around 67. Chance of precipitation is 20%. |
Sunday |
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Temperature: 88°F Wind Speed: 2 to 6 mph Wind Direction: S Forecast: A slight chance of rain showers before 7am. Sunny, with a high near 88. Chance of precipitation is 20%. |
Sunday Night |
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Temperature: 67°F Wind Speed: 5 mph Wind Direction: S Forecast: Mostly clear, with a low around 67. |
Monday |
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Temperature: 87°F Wind Speed: 5 to 8 mph Wind Direction: SW Forecast: A slight chance of rain showers between 7am and 1pm, then a slight chance of showers and thunderstorms. Sunny, with a high near 87. Chance of precipitation is 20%. |