Weather in O'Fallon, Illinois, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for O'Fallon
Today |
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Temperature: 42°F Wind Speed: 8 to 12 mph Wind Direction: W Forecast: Mostly cloudy. High near 42, with temperatures falling to around 38 in the afternoon. West wind 8 to 12 mph. |
Tonight |
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Temperature: 26°F Wind Speed: 3 to 7 mph Wind Direction: W Forecast: Partly cloudy. Low around 26, with temperatures rising to around 30 overnight. West wind 3 to 7 mph. |
New Year's Day |
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Temperature: 39°F Wind Speed: 2 to 7 mph Wind Direction: NE Forecast: Partly sunny. High near 39, with temperatures falling to around 35 in the afternoon. Northeast wind 2 to 7 mph. |
Thursday Night |
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Temperature: 28°F Wind Speed: 5 mph Wind Direction: E Forecast: Mostly cloudy, with a low around 28. East wind around 5 mph. |
Friday |
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Temperature: 43°F Wind Speed: 2 to 6 mph Wind Direction: NE Forecast: Mostly cloudy. High near 43, with temperatures falling to around 39 in the afternoon. Northeast wind 2 to 6 mph. |
Friday Night |
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Temperature: 25°F Wind Speed: 6 mph Wind Direction: NE Forecast: Mostly cloudy, with a low around 25. |
Saturday |
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Temperature: 40°F Wind Speed: 5 mph Wind Direction: N Forecast: Mostly sunny, with a high near 40. |
Saturday Night |
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Temperature: 24°F Wind Speed: 2 mph Wind Direction: N Forecast: Mostly clear, with a low around 24. |
Sunday |
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Temperature: 45°F Wind Speed: 2 to 7 mph Wind Direction: SE Forecast: Partly sunny, with a high near 45. |
Sunday Night |
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Temperature: 33°F Wind Speed: 7 mph Wind Direction: S Forecast: Mostly clear, with a low around 33. |
Monday |
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Temperature: 57°F Wind Speed: 8 mph Wind Direction: S Forecast: Mostly sunny, with a high near 57. |
Monday Night |
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Temperature: 36°F Wind Speed: 6 mph Wind Direction: SW Forecast: Mostly cloudy, with a low around 36. |
Tuesday |
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Temperature: 53°F Wind Speed: 6 mph Wind Direction: NW Forecast: Partly sunny, with a high near 53. |
Tuesday Night |
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Temperature: 35°F Wind Speed: 6 mph Wind Direction: N Forecast: Mostly cloudy, with a low around 35. |