Weather in O'Fallon, Illinois, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for O'Fallon
This Afternoon |
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Temperature: 69°F Wind Speed: 8 mph Wind Direction: SE Forecast: A slight chance of thunderstorms and a slight chance of rain before 5pm. Mostly sunny, with a high near 69. Southeast wind around 8 mph. Chance of precipitation is 20%. |
Tonight |
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Temperature: 34°F Wind Speed: 8 to 20 mph Wind Direction: W Forecast: Partly cloudy, with a low around 34. West wind 8 to 20 mph, with gusts as high as 37 mph. |
Friday |
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Temperature: 48°F Wind Speed: 7 to 21 mph Wind Direction: W Forecast: Sunny, with a high near 48. West wind 7 to 21 mph, with gusts as high as 35 mph. |
Friday Night |
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Temperature: 29°F Wind Speed: 6 mph Wind Direction: NW Forecast: Partly cloudy, with a low around 29. Northwest wind around 6 mph. |
Saturday |
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Temperature: 44°F Wind Speed: 6 to 12 mph Wind Direction: NW Forecast: Mostly sunny, with a high near 44. Northwest wind 6 to 12 mph. |
Saturday Night |
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Temperature: 25°F Wind Speed: 13 mph Wind Direction: NW Forecast: Mostly clear, with a low around 25. |
Sunday |
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Temperature: 37°F Wind Speed: 14 to 20 mph Wind Direction: NW Forecast: Sunny, with a high near 37. |
Sunday Night |
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Temperature: 19°F Wind Speed: 14 mph Wind Direction: NW Forecast: Mostly clear, with a low around 19. |
Monday |
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Temperature: 36°F Wind Speed: 6 to 14 mph Wind Direction: NW Forecast: Sunny, with a high near 36. |
Monday Night |
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Temperature: 20°F Wind Speed: 5 mph Wind Direction: SW Forecast: Mostly clear, with a low around 20. |
Tuesday |
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Temperature: 50°F Wind Speed: 6 to 16 mph Wind Direction: S Forecast: Mostly sunny, with a high near 50. |
Tuesday Night |
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Temperature: 39°F Wind Speed: 12 to 15 mph Wind Direction: S Forecast: Mostly cloudy, with a low around 39. |
Wednesday |
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Temperature: 59°F Wind Speed: 12 mph Wind Direction: SW Forecast: A slight chance of rain. Mostly cloudy, with a high near 59. Chance of precipitation is 20%. |
Wednesday Night |
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Temperature: 38°F Wind Speed: 8 mph Wind Direction: NW Forecast: A slight chance of rain. Mostly cloudy, with a low around 38. Chance of precipitation is 20%. |