Weather in O'Fallon, Missouri, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for O'Fallon
This Afternoon |
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Temperature: 92°F Wind Speed: 12 to 17 mph Wind Direction: SW Forecast: Sunny, with a high near 92. Southwest wind 12 to 17 mph, with gusts as high as 31 mph. |
Tonight |
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Temperature: 40°F Wind Speed: 9 to 18 mph Wind Direction: N Forecast: Showers and thunderstorms likely between 9pm and 1am, then showers and thunderstorms. Mostly cloudy. Low around 40, with temperatures rising to around 47 overnight. North wind 9 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. |
Friday |
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Temperature: 54°F Wind Speed: 14 to 17 mph Wind Direction: N Forecast: A chance of rain showers before 9am. Partly sunny, with a high near 54. North wind 14 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 40%. |
Friday Night |
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Temperature: 31°F Wind Speed: 3 to 13 mph Wind Direction: N Forecast: Mostly clear, with a low around 31. North wind 3 to 13 mph, with gusts as high as 22 mph. |
Saturday |
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Temperature: 57°F Wind Speed: 2 to 7 mph Wind Direction: E Forecast: Sunny, with a high near 57. East wind 2 to 7 mph. |
Saturday Night |
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Temperature: 43°F Wind Speed: 8 mph Wind Direction: S Forecast: Partly cloudy, with a low around 43. |
Sunday |
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Temperature: 70°F Wind Speed: 9 mph Wind Direction: S Forecast: Partly sunny, with a high near 70. |
Sunday Night |
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Temperature: 58°F Wind Speed: 10 mph Wind Direction: S Forecast: Partly cloudy, with a low around 58. |
Monday |
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Temperature: 86°F Wind Speed: 9 to 13 mph Wind Direction: SW Forecast: Mostly sunny, with a high near 86. |
Monday Night |
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Temperature: 64°F Wind Speed: 13 mph Wind Direction: S Forecast: A slight chance of rain after 7pm. Partly cloudy, with a low around 64. Chance of precipitation is 20%. |
Tuesday |
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Temperature: 88°F Wind Speed: 12 to 16 mph Wind Direction: SW Forecast: A slight chance of rain before 7am, then a slight chance of thunderstorms and a slight chance of rain. Partly sunny, with a high near 88. Chance of precipitation is 20%. |
Tuesday Night |
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Temperature: 59°F Wind Speed: 14 mph Wind Direction: S Forecast: A chance of thunderstorms and a chance of rain. Mostly cloudy, with a low around 59. Chance of precipitation is 40%. |
Wednesday |
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Temperature: 79°F Wind Speed: 15 mph Wind Direction: SW Forecast: A chance of thunderstorms and a chance of rain. Partly sunny, with a high near 79. Chance of precipitation is 40%. |
Wednesday Night |
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Temperature: 56°F Wind Speed: 14 mph Wind Direction: S Forecast: A chance of thunderstorms and a chance of rain before 1am, then rain likely and a slight chance of thunderstorms. Mostly cloudy, with a low around 56. Chance of precipitation is 60%. |