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: 56°F Wind Speed: 8 mph Wind Direction: W Forecast: Scattered rain showers. Partly sunny. High near 56, with temperatures falling to around 43 in the afternoon. West wind around 8 mph. |
Tonight |
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Temperature: 25°F Wind Speed: 7 to 23 mph Wind Direction: W Forecast: Isolated rain showers before 8pm, then scattered rain and snow showers between 8pm and midnight. Mostly cloudy, with a low around 25. West wind 7 to 23 mph, with gusts as high as 41 mph. Chance of precipitation is 20%. |
Friday |
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Temperature: 39°F Wind Speed: 7 to 17 mph Wind Direction: W Forecast: Sunny. High near 39, with temperatures falling to around 34 in the afternoon. West wind 7 to 17 mph, with gusts as high as 32 mph. |
Friday Night |
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Temperature: 32°F Wind Speed: 7 to 14 mph Wind Direction: S Forecast: Mostly clear, with a low around 32. South wind 7 to 14 mph, with gusts as high as 23 mph. |
Saturday |
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Temperature: 55°F Wind Speed: 9 to 14 mph Wind Direction: SW Forecast: Mostly sunny. High near 55, with temperatures falling to around 50 in the afternoon. Southwest wind 9 to 14 mph, with gusts as high as 23 mph. |
Saturday Night |
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Temperature: 28°F Wind Speed: 5 to 8 mph Wind Direction: NW Forecast: Partly cloudy, with a low around 28. |
Sunday |
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Temperature: 42°F Wind Speed: 6 mph Wind Direction: N Forecast: Mostly sunny, with a high near 42. |
Sunday Night |
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Temperature: 28°F Wind Speed: 3 to 7 mph Wind Direction: E Forecast: Partly cloudy, with a low around 28. |
Monday |
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Temperature: 47°F Wind Speed: 7 to 10 mph Wind Direction: SE Forecast: Partly sunny, with a high near 47. |
Monday Night |
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Temperature: 41°F Wind Speed: 9 mph Wind Direction: S Forecast: Mostly cloudy, with a low around 41. |
Tuesday |
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Temperature: 62°F Wind Speed: 9 mph Wind Direction: SW Forecast: Partly sunny, with a high near 62. |
Tuesday Night |
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Temperature: 50°F Wind Speed: 6 mph Wind Direction: S Forecast: Mostly cloudy, with a low around 50. |
Wednesday |
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Temperature: 67°F Wind Speed: 6 to 10 mph Wind Direction: S Forecast: Mostly cloudy, with a high near 67. |
Wednesday Night |
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Temperature: 55°F Wind Speed: 9 mph Wind Direction: S Forecast: Mostly cloudy, with a low around 55. |