Weather in O'Fallon, Illinois, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for O'Fallon
Tonight |
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Temperature: 49°F Wind Speed: 5 mph Wind Direction: S Forecast: Mostly cloudy, with a low around 49. South wind around 5 mph. |
Thursday |
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Temperature: 68°F Wind Speed: 6 to 17 mph Wind Direction: S Forecast: Scattered showers and thunderstorms between 9am and 11am, then a chance of showers and thunderstorms between 11am and noon, then scattered showers and thunderstorms between noon and 5pm. Partly sunny, with a high near 68. South wind 6 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. |
Thursday Night |
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Temperature: 35°F Wind Speed: 12 to 18 mph Wind Direction: W Forecast: Mostly clear, with a low around 35. West wind 12 to 18 mph, with gusts as high as 28 mph. |
Friday |
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Temperature: 49°F Wind Speed: 6 to 17 mph Wind Direction: W Forecast: Sunny, with a high near 49. West wind 6 to 17 mph, with gusts as high as 26 mph. |
Friday Night |
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Temperature: 31°F Wind Speed: 6 mph Wind Direction: NW Forecast: Partly cloudy, with a low around 31. Northwest wind around 6 mph. |
Saturday |
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Temperature: 44°F Wind Speed: 6 to 12 mph Wind Direction: NW Forecast: A slight chance of rain and snow after noon. Mostly sunny, with a high near 44. Chance of precipitation is 20%. |
Saturday Night |
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Temperature: 25°F Wind Speed: 8 to 14 mph Wind Direction: NW Forecast: Mostly clear, with a low around 25. |
Sunday |
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Temperature: 39°F Wind Speed: 14 to 17 mph Wind Direction: NW Forecast: Sunny, with a high near 39. |
Sunday Night |
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Temperature: 21°F Wind Speed: 12 mph Wind Direction: NW Forecast: Mostly clear, with a low around 21. |
Monday |
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Temperature: 38°F Wind Speed: 5 to 10 mph Wind Direction: NW Forecast: Sunny, with a high near 38. |
Monday Night |
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Temperature: 22°F Wind Speed: 3 mph Wind Direction: SW Forecast: Mostly clear, with a low around 22. |
Tuesday |
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Temperature: 49°F Wind Speed: 5 to 15 mph Wind Direction: S Forecast: Mostly sunny, with a high near 49. |
Tuesday Night |
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Temperature: 37°F Wind Speed: 14 mph Wind Direction: S Forecast: Mostly cloudy, with a low around 37. |
Wednesday |
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Temperature: 57°F Wind Speed: 14 mph Wind Direction: SW Forecast: A slight chance of rain. Partly sunny, with a high near 57. Chance of precipitation is 20%. |