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: 27°F Wind Speed: 2 mph Wind Direction: N Forecast: Partly cloudy, with a low around 27. North wind around 2 mph. |
Sunday |
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Temperature: 44°F Wind Speed: 2 to 6 mph Wind Direction: NE Forecast: Mostly sunny. High near 44, with temperatures falling to around 40 in the afternoon. Northeast wind 2 to 6 mph. |
Sunday Night |
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Temperature: 31°F Wind Speed: 6 mph Wind Direction: SE Forecast: Mostly clear, with a low around 31. Southeast wind around 6 mph. |
Monday |
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Temperature: 54°F Wind Speed: 8 mph Wind Direction: S Forecast: Partly sunny, with a high near 54. South wind around 8 mph. |
Monday Night |
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Temperature: 45°F Wind Speed: 7 mph Wind Direction: SW Forecast: Partly cloudy, with a low around 45. Southwest wind around 7 mph. |
Tuesday |
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Temperature: 62°F Wind Speed: 5 mph Wind Direction: NW Forecast: Sunny. High near 62, with temperatures falling to around 57 in the afternoon. |
Tuesday Night |
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Temperature: 45°F Wind Speed: 2 to 6 mph Wind Direction: E Forecast: Partly cloudy, with a low around 45. |
Wednesday |
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Temperature: 69°F Wind Speed: 6 to 9 mph Wind Direction: S Forecast: Mostly cloudy, with a high near 69. |
Wednesday Night |
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Temperature: 58°F Wind Speed: 7 mph Wind Direction: SW Forecast: Mostly cloudy, with a low around 58. |
Christmas Day |
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Temperature: 74°F Wind Speed: 6 to 12 mph Wind Direction: SW Forecast: Partly sunny, with a high near 74. |
Thursday Night |
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Temperature: 48°F Wind Speed: 8 mph Wind Direction: W Forecast: Partly cloudy, with a low around 48. |
Friday |
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Temperature: 60°F Wind Speed: 7 mph Wind Direction: N Forecast: Partly sunny, with a high near 60. |
Friday Night |
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Temperature: 40°F Wind Speed: 5 mph Wind Direction: E Forecast: Mostly cloudy, with a low around 40. |
Saturday |
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Temperature: 57°F Wind Speed: 7 mph Wind Direction: S Forecast: Mostly cloudy, with a high near 57. |