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: 32°F Wind Speed: 14 mph Wind Direction: N Forecast: Cloudy, with a high near 32. North wind around 14 mph. |
Tonight |
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Temperature: 15°F Wind Speed: 10 to 17 mph Wind Direction: N Forecast: Cloudy. Low around 15, with temperatures rising to around 19 overnight. North wind 10 to 17 mph. |
Sunday |
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Temperature: 17°F Wind Speed: 14 to 18 mph Wind Direction: NW Forecast: Mostly sunny, with a high near 17. Northwest wind 14 to 18 mph, with gusts as high as 26 mph. |
Sunday Night |
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Temperature: 6°F Wind Speed: 2 to 13 mph Wind Direction: NW Forecast: Mostly clear, with a low around 6. Northwest wind 2 to 13 mph. |
M.L. King Jr. Day |
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Temperature: 20°F Wind Speed: 2 to 8 mph Wind Direction: W Forecast: Sunny, with a high near 20. West wind 2 to 8 mph. |
Monday Night |
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Temperature: 7°F Wind Speed: 2 to 6 mph Wind Direction: W Forecast: Mostly cloudy. Low around 7, with temperatures rising to around 11 overnight. |
Tuesday |
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Temperature: 15°F Wind Speed: 3 to 10 mph Wind Direction: NW Forecast: Sunny, with a high near 15. |
Tuesday Night |
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Temperature: 7°F Wind Speed: 1 to 7 mph Wind Direction: S Forecast: Mostly clear, with a low around 7. |
Wednesday |
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Temperature: 32°F Wind Speed: 8 to 14 mph Wind Direction: S Forecast: Mostly sunny, with a high near 32. |
Wednesday Night |
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Temperature: 23°F Wind Speed: 6 to 10 mph Wind Direction: S Forecast: Mostly cloudy, with a low around 23. |
Thursday |
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Temperature: 39°F Wind Speed: 6 to 10 mph Wind Direction: W Forecast: Partly sunny, with a high near 39. |
Thursday Night |
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Temperature: 20°F Wind Speed: 6 mph Wind Direction: W Forecast: Partly cloudy, with a low around 20. |
Friday |
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Temperature: 37°F Wind Speed: 6 to 12 mph Wind Direction: W Forecast: Mostly sunny, with a high near 37. |
Friday Night |
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Temperature: 25°F Wind Speed: 8 mph Wind Direction: SW Forecast: Mostly clear, with a low around 25. |