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: 71°F Wind Speed: 10 mph Wind Direction: S Forecast: Mostly sunny. High near 71, with temperatures falling to around 65 in the afternoon. South wind around 10 mph. |
Tonight |
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Temperature: 51°F Wind Speed: 8 to 12 mph Wind Direction: S Forecast: Mostly cloudy, with a low around 51. South wind 8 to 12 mph. |
Wednesday |
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Temperature: 69°F Wind Speed: 8 to 15 mph Wind Direction: W Forecast: Sunny. High near 69, with temperatures falling to around 62 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: 64°F Wind Speed: 5 to 14 mph Wind Direction: SE Forecast: Sunny. High near 64, with temperatures falling to around 59 in the afternoon. Southeast wind 5 to 14 mph. |
Thursday Night |
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Temperature: 52°F Wind Speed: 12 mph Wind Direction: S Forecast: A chance of rain showers after midnight. Mostly cloudy. Low around 52, with temperatures rising to around 57 overnight. Chance of precipitation is 30%. |
Friday |
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Temperature: 71°F Wind Speed: 9 to 13 mph Wind Direction: SW Forecast: A chance of rain showers. Mostly sunny, with a high near 71. Chance of precipitation is 40%. |
Friday Night |
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Temperature: 44°F Wind Speed: 2 to 8 mph Wind Direction: NW Forecast: Mostly clear, with a low around 44. |
Saturday |
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Temperature: 68°F Wind Speed: 2 to 10 mph Wind Direction: SW Forecast: Mostly sunny, with a high near 68. |
Saturday Night |
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Temperature: 39°F Wind Speed: 9 to 13 mph Wind Direction: W Forecast: A chance of rain before midnight. Partly cloudy, with a low around 39. Chance of precipitation is 30%. |
Sunday |
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Temperature: 46°F Wind Speed: 16 mph Wind Direction: NW Forecast: Partly sunny, with a high near 46. |
Sunday Night |
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Temperature: 26°F Wind Speed: 7 to 13 mph Wind Direction: NW Forecast: Partly cloudy, with a low around 26. |
Monday |
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Temperature: 43°F Wind Speed: 8 to 12 mph Wind Direction: NW Forecast: Sunny, with a high near 43. |
Monday Night |
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Temperature: 26°F Wind Speed: 7 mph Wind Direction: W Forecast: Mostly clear, with a low around 26. |