Weather in O'Fallon, Missouri, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for O'Fallon
This Afternoon |
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Temperature: 96°F Wind Speed: 12 mph Wind Direction: SW Forecast: Sunny, with a high near 96. Heat index values as high as 104. Southwest wind around 12 mph. |
Tonight |
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Temperature: 76°F Wind Speed: 5 to 10 mph Wind Direction: S Forecast: Clear, with a low around 76. Heat index values as high as 100. South wind 5 to 10 mph. |
Monday |
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Temperature: 96°F Wind Speed: 6 to 10 mph Wind Direction: SW Forecast: Sunny, with a high near 96. Heat index values as high as 104. Southwest wind 6 to 10 mph. |
Monday Night |
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Temperature: 76°F Wind Speed: 3 to 8 mph Wind Direction: S Forecast: Partly cloudy, with a low around 76. Heat index values as high as 101. South wind 3 to 8 mph. |
Tuesday |
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Temperature: 96°F Wind Speed: 5 mph Wind Direction: SW Forecast: A slight chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 96. Southwest wind around 5 mph. Chance of precipitation is 20%. |
Tuesday Night |
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Temperature: 75°F Wind Speed: 3 mph Wind Direction: S Forecast: A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 75. Chance of precipitation is 20%. |
Wednesday |
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Temperature: 96°F Wind Speed: 5 mph Wind Direction: SW Forecast: Mostly sunny, with a high near 96. |
Wednesday Night |
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Temperature: 75°F Wind Speed: 5 mph Wind Direction: S Forecast: Mostly clear, with a low around 75. |
Thursday |
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Temperature: 97°F Wind Speed: 3 to 7 mph Wind Direction: SW Forecast: Sunny, with a high near 97. |
Thursday Night |
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Temperature: 75°F Wind Speed: 6 mph Wind Direction: SW Forecast: Partly cloudy, with a low around 75. |
Friday |
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Temperature: 95°F Wind Speed: 3 to 7 mph Wind Direction: SW Forecast: A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 95. Chance of precipitation is 20%. |
Friday Night |
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Temperature: 74°F Wind Speed: 5 mph Wind Direction: SW Forecast: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 20%. |
Saturday |
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Temperature: 94°F Wind Speed: 2 to 6 mph Wind Direction: SW Forecast: A slight chance of showers and thunderstorms. Mostly sunny, with a high near 94. Chance of precipitation is 20%. |
Saturday Night |
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Temperature: 73°F Wind Speed: 3 mph Wind Direction: SW Forecast: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 20%. |