Weather in O'Fallon, Illinois, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for O'Fallon
Today |
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Temperature: 68°F Wind Speed: 7 mph Wind Direction: SE Forecast: Sunny, with a high near 68. Southeast wind around 7 mph. |
Tonight |
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Temperature: 50°F Wind Speed: 8 mph Wind Direction: S Forecast: Mostly clear, with a low around 50. South wind around 8 mph. |
Tuesday |
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Temperature: 80°F Wind Speed: 7 to 15 mph Wind Direction: SW Forecast: Sunny, with a high near 80. Southwest wind 7 to 15 mph, with gusts as high as 23 mph. |
Tuesday Night |
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Temperature: 56°F Wind Speed: 7 to 12 mph Wind Direction: SW Forecast: Mostly clear, with a low around 56. Southwest wind 7 to 12 mph. |
Wednesday |
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Temperature: 78°F Wind Speed: 6 to 9 mph Wind Direction: SW Forecast: Sunny, with a high near 78. Southwest wind 6 to 9 mph. |
Wednesday Night |
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Temperature: 58°F Wind Speed: 8 mph Wind Direction: S Forecast: Mostly clear, with a low around 58. |
Thursday |
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Temperature: 80°F Wind Speed: 7 to 18 mph Wind Direction: S Forecast: Mostly sunny, with a high near 80. |
Thursday Night |
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Temperature: 63°F Wind Speed: 12 to 16 mph Wind Direction: S Forecast: A slight chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%. |
Friday |
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Temperature: 74°F Wind Speed: 12 mph Wind Direction: SW Forecast: Showers and thunderstorms. Mostly cloudy, with a high near 74. Chance of precipitation is 80%. |
Friday Night |
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Temperature: 53°F Wind Speed: 9 mph Wind Direction: NW Forecast: Showers and thunderstorms likely. Mostly cloudy, with a low around 53. Chance of precipitation is 60%. |
Saturday |
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Temperature: 72°F Wind Speed: 7 to 10 mph Wind Direction: N Forecast: A chance of showers and thunderstorms. Mostly sunny, with a high near 72. Chance of precipitation is 40%. |
Saturday Night |
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Temperature: 52°F Wind Speed: 8 mph Wind Direction: N Forecast: A chance of rain showers. Partly cloudy, with a low around 52. Chance of precipitation is 30%. |
Sunday |
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Temperature: 72°F Wind Speed: 9 mph Wind Direction: NE Forecast: A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 72. Chance of precipitation is 30%. |
Sunday Night |
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Temperature: 54°F Wind Speed: 8 mph Wind Direction: SE Forecast: A chance of showers and thunderstorms. Partly cloudy, with a low around 54. Chance of precipitation is 40%. |