Weather in O'Fallon, Missouri, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for O'Fallon
Overnight |
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Temperature: 42°F Wind Speed: 6 mph Wind Direction: S Forecast: Partly cloudy, with a low around 42. South wind around 6 mph. |
Tuesday |
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Temperature: 63°F Wind Speed: 6 to 15 mph Wind Direction: S Forecast: Mostly cloudy, with a high near 63. South wind 6 to 15 mph, with gusts as high as 28 mph. |
Tuesday Night |
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Temperature: 53°F Wind Speed: 14 to 18 mph Wind Direction: SW Forecast: A slight chance of rain between midnight and 3am. Mostly cloudy, with a low around 53. Southwest wind 14 to 18 mph, with gusts as high as 37 mph. Chance of precipitation is 20%. |
Wednesday |
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Temperature: 73°F Wind Speed: 5 to 14 mph Wind Direction: SW Forecast: Sunny. High near 73, with temperatures falling to around 68 in the afternoon. Southwest wind 5 to 14 mph, with gusts as high as 24 mph. |
Wednesday Night |
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Temperature: 48°F Wind Speed: 6 mph Wind Direction: S Forecast: Partly cloudy, with a low around 48. South wind around 6 mph. |
Thursday |
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Temperature: 72°F Wind Speed: 6 to 14 mph Wind Direction: S Forecast: A chance of rain showers before noon, then a chance of showers and thunderstorms. Sunny. High near 72, with temperatures falling to around 68 in the afternoon. Chance of precipitation is 40%. |
Thursday Night |
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Temperature: 36°F Wind Speed: 10 to 15 mph Wind Direction: W Forecast: Clear, with a low around 36. |
Friday |
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Temperature: 49°F Wind Speed: 7 to 15 mph Wind Direction: W Forecast: Sunny, with a high near 49. |
Friday Night |
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Temperature: 30°F Wind Speed: 6 mph Wind Direction: NW Forecast: Partly cloudy, with a low around 30. |
Saturday |
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Temperature: 45°F Wind Speed: 6 to 10 mph Wind Direction: NW Forecast: A chance of snow. Mostly sunny, with a high near 45. Chance of precipitation is 30%. New snow accumulation of less than half an inch possible. |
Saturday Night |
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Temperature: 26°F Wind Speed: 10 mph Wind Direction: NW Forecast: A slight chance of snow before midnight. Mostly clear, with a low around 26. Chance of precipitation is 20%. New snow accumulation of less than half an inch possible. |
Sunday |
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Temperature: 40°F Wind Speed: 12 mph Wind Direction: NW Forecast: Sunny, with a high near 40. |
Sunday Night |
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Temperature: 19°F Wind Speed: 8 mph Wind Direction: NW Forecast: Mostly clear, with a low around 19. |
Monday |
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Temperature: 40°F Wind Speed: 6 mph Wind Direction: NW Forecast: Sunny, with a high near 40. |