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: 70°F Wind Speed: 10 to 15 mph Wind Direction: S Forecast: Mostly sunny. High near 70, with temperatures falling to around 64 in the afternoon. South wind 10 to 15 mph, with gusts as high as 26 mph. |
Tonight |
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Temperature: 51°F Wind Speed: 8 to 12 mph Wind Direction: S Forecast: Partly cloudy, with a low around 51. South wind 8 to 12 mph. |
Wednesday |
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Temperature: 70°F Wind Speed: 8 to 15 mph Wind Direction: W Forecast: Sunny. High near 70, with temperatures falling to around 61 in the afternoon. West wind 8 to 15 mph, with gusts as high as 26 mph. |
Wednesday Night |
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Temperature: 38°F Wind Speed: 3 to 7 mph Wind Direction: NE Forecast: Clear, with a low around 38. Northeast wind 3 to 7 mph. |
Thursday |
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Temperature: 65°F Wind Speed: 6 to 14 mph Wind Direction: SE Forecast: Sunny. High near 65, with temperatures falling to around 61 in the afternoon. Southeast wind 6 to 14 mph, with gusts as high as 22 mph. |
Thursday Night |
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Temperature: 54°F Wind Speed: 13 mph Wind Direction: S Forecast: A chance of rain after midnight. Mostly cloudy, with a low around 54. Chance of precipitation is 40%. |
Friday |
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Temperature: 70°F Wind Speed: 10 to 14 mph Wind Direction: W Forecast: A chance of rain before noon. Mostly sunny, with a high near 70. Chance of precipitation is 30%. |
Friday Night |
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Temperature: 42°F Wind Speed: 3 to 9 mph Wind Direction: NW Forecast: Mostly clear, with a low around 42. |
Saturday |
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Temperature: 65°F Wind Speed: 3 to 10 mph Wind Direction: SW Forecast: Mostly sunny, with a high near 65. |
Saturday Night |
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Temperature: 40°F Wind Speed: 12 mph Wind Direction: W Forecast: A slight chance of rain before midnight. Partly cloudy, with a low around 40. Chance of precipitation is 20%. |
Sunday |
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Temperature: 49°F Wind Speed: 12 to 15 mph Wind Direction: NW Forecast: Sunny, with a high near 49. |
Sunday Night |
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Temperature: 28°F Wind Speed: 6 to 10 mph Wind Direction: NW Forecast: Mostly clear, with a low around 28. |
Monday |
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Temperature: 46°F Wind Speed: 7 to 12 mph Wind Direction: NW Forecast: Sunny, with a high near 46. |
Monday Night |
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Temperature: 30°F Wind Speed: 8 mph Wind Direction: W Forecast: Mostly clear, with a low around 30. |