Weather in O'Fallon, Missouri, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for O'Fallon
Independence Day |
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Temperature: 92°F Wind Speed: 2 to 7 mph Wind Direction: S Forecast: Sunny, with a high near 92. South wind 2 to 7 mph. |
Tonight |
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Temperature: 72°F Wind Speed: 6 mph Wind Direction: S Forecast: Mostly clear, with a low around 72. South wind around 6 mph. |
Saturday |
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Temperature: 93°F Wind Speed: 3 to 7 mph Wind Direction: S Forecast: Sunny, with a high near 93. South wind 3 to 7 mph. |
Saturday Night |
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Temperature: 74°F Wind Speed: 6 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 74. Southwest wind around 6 mph. Chance of precipitation is 30%. |
Sunday |
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Temperature: 88°F Wind Speed: 7 mph Wind Direction: SW 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. Mostly cloudy. High near 88, with temperatures falling to around 84 in the afternoon. Southwest wind around 7 mph. Chance of precipitation is 50%. |
Sunday Night |
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Temperature: 72°F Wind Speed: 5 mph Wind Direction: W Forecast: A chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 50%. |
Monday |
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Temperature: 89°F Wind Speed: 3 mph Wind Direction: NW Forecast: A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 30%. |
Monday Night |
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Temperature: 70°F Wind Speed: 3 mph Wind Direction: NE Forecast: A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 70. Chance of precipitation is 30%. |
Tuesday |
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Temperature: 90°F Wind Speed: 3 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90. Chance of precipitation is 30%. |
Tuesday Night |
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Temperature: 70°F Wind Speed: 3 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%. |
Wednesday |
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Temperature: 88°F Wind Speed: 5 mph Wind Direction: W Forecast: A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 88. Chance of precipitation is 40%. |
Wednesday Night |
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Temperature: 70°F Wind Speed: 5 mph Wind Direction: NW Forecast: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%. |
Thursday |
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Temperature: 87°F Wind Speed: 5 mph Wind Direction: N Forecast: A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 40%. |
Thursday Night |
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Temperature: 69°F Wind Speed: 3 mph Wind Direction: NE Forecast: A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a slight chance of showers and thunderstorms. Mostly clear, with a low around 69. Chance of precipitation is 40%. |