Weather in O'Fallon, Missouri, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for O'Fallon
Tonight |
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Temperature: 71°F Wind Speed: 3 to 8 mph Wind Direction: N Forecast: A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71. Heat index values as high as 101. North wind 3 to 8 mph. Chance of precipitation is 20%. |
Wednesday |
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Temperature: 86°F Wind Speed: 5 to 8 mph Wind Direction: N Forecast: Mostly sunny, with a high near 86. North wind 5 to 8 mph. |
Wednesday Night |
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Temperature: 65°F Wind Speed: 7 mph Wind Direction: NE Forecast: Mostly clear, with a low around 65. Northeast wind around 7 mph. |
Thursday |
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Temperature: 84°F Wind Speed: 7 mph Wind Direction: NE Forecast: Sunny, with a high near 84. Northeast wind around 7 mph. |
Thursday Night |
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Temperature: 64°F Wind Speed: 2 to 7 mph Wind Direction: NE Forecast: Mostly clear, with a low around 64. Northeast wind 2 to 7 mph. |
Friday |
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Temperature: 86°F Wind Speed: 3 mph Wind Direction: NE Forecast: Sunny, with a high near 86. |
Friday Night |
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Temperature: 66°F Wind Speed: 2 mph Wind Direction: NE Forecast: Mostly clear, with a low around 66. |
Saturday |
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Temperature: 87°F Wind Speed: 2 to 6 mph Wind Direction: NW Forecast: Mostly sunny, with a high near 87. |
Saturday Night |
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Temperature: 61°F Wind Speed: 6 mph Wind Direction: N Forecast: Mostly clear, with a low around 61. |
Sunday |
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Temperature: 81°F Wind Speed: 3 to 8 mph Wind Direction: NW Forecast: Sunny, with a high near 81. |
Sunday Night |
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Temperature: 56°F Wind Speed: 2 to 7 mph Wind Direction: NW Forecast: Mostly clear, with a low around 56. |
Monday |
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Temperature: 77°F Wind Speed: 2 to 6 mph Wind Direction: N Forecast: Mostly sunny, with a high near 77. |
Monday Night |
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Temperature: 56°F Wind Speed: 5 mph Wind Direction: N Forecast: Partly cloudy, with a low around 56. |
Tuesday |
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Temperature: 77°F Wind Speed: 5 mph Wind Direction: N Forecast: Mostly sunny, with a high near 77. |