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: 91°F Wind Speed: 9 mph Wind Direction: NW Forecast: Isolated showers and thunderstorms after 5pm. Mostly sunny, with a high near 91. Northwest wind around 9 mph. Chance of precipitation is 20%. |
Tonight |
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Temperature: 66°F Wind Speed: 1 to 8 mph Wind Direction: NW Forecast: Isolated showers and thunderstorms before 7pm. Mostly clear, with a low around 66. Northwest wind 1 to 8 mph. Chance of precipitation is 20%. |
Thursday |
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Temperature: 87°F Wind Speed: 2 to 8 mph Wind Direction: N Forecast: Sunny, with a high near 87. North wind 2 to 8 mph. |
Thursday Night |
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Temperature: 62°F Wind Speed: 1 to 8 mph Wind Direction: N Forecast: Clear, with a low around 62. North wind 1 to 8 mph. |
Friday |
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Temperature: 85°F Wind Speed: 1 to 5 mph Wind Direction: NE Forecast: Sunny, with a high near 85. Northeast wind 1 to 5 mph. |
Friday Night |
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Temperature: 61°F Wind Speed: 5 mph Wind Direction: E Forecast: Mostly clear, with a low around 61. |
Saturday |
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Temperature: 89°F Wind Speed: 2 to 7 mph Wind Direction: SE Forecast: Sunny, with a high near 89. |
Saturday Night |
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Temperature: 67°F Wind Speed: 6 mph Wind Direction: S Forecast: Partly cloudy, with a low around 67. |
Sunday |
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Temperature: 95°F Wind Speed: 6 to 12 mph Wind Direction: S Forecast: Sunny, with a high near 95. |
Sunday Night |
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Temperature: 72°F Wind Speed: 7 to 10 mph Wind Direction: S Forecast: Mostly clear, with a low around 72. |
Monday |
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Temperature: 97°F Wind Speed: 7 to 12 mph Wind Direction: S Forecast: Sunny, with a high near 97. |
Monday Night |
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Temperature: 76°F Wind Speed: 6 to 10 mph Wind Direction: S Forecast: Mostly clear, with a low around 76. |
Tuesday |
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Temperature: 98°F Wind Speed: 7 mph Wind Direction: SW Forecast: Sunny, with a high near 98. |
Tuesday Night |
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Temperature: 75°F Wind Speed: 6 mph Wind Direction: S Forecast: Mostly clear, with a low around 75. |