Weather in Vandalia, Illinois, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Vandalia
Overnight |
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Temperature: 73°F Wind Speed: 3 mph Wind Direction: E Forecast: Partly cloudy, with a low around 73. East wind around 3 mph. |
Monday |
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Temperature: 90°F Wind Speed: 6 mph Wind Direction: S Forecast: Mostly sunny, with a high near 90. Heat index values as high as 101. South wind around 6 mph. |
Monday Night |
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Temperature: 73°F Wind Speed: 3 mph Wind Direction: SE Forecast: A slight chance of showers and thunderstorms after 5am. Mostly clear, with a low around 73. Southeast wind around 3 mph. Chance of precipitation is 20%. |
Tuesday |
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Temperature: 91°F Wind Speed: 3 mph Wind Direction: W Forecast: A chance of showers and thunderstorms before 10am, then a chance of showers and thunderstorms between 10am and 4pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 91. Heat index values as high as 100. West wind around 3 mph. Chance of precipitation is 40%. |
Tuesday Night |
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Temperature: 71°F Wind Speed: 2 mph Wind Direction: N Forecast: A chance of showers and thunderstorms. Partly cloudy, with a low around 71. North wind around 2 mph. Chance of precipitation is 40%. |
Wednesday |
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Temperature: 86°F Wind Speed: 3 to 8 mph Wind Direction: N Forecast: A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 20%. |
Wednesday Night |
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Temperature: 64°F Wind Speed: 7 mph Wind Direction: NE Forecast: A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 64. Chance of precipitation is 20%. |
Thursday |
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Temperature: 85°F Wind Speed: 6 mph Wind Direction: NE Forecast: Sunny, with a high near 85. |
Thursday Night |
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Temperature: 63°F Wind Speed: 5 mph Wind Direction: NE Forecast: Mostly clear, with a low around 63. |
Friday |
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Temperature: 86°F Wind Speed: 2 mph Wind Direction: N Forecast: Sunny, with a high near 86. |
Friday Night |
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Temperature: 64°F Wind Speed: 2 mph Wind Direction: N Forecast: Clear, with a low around 64. |
Saturday |
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Temperature: 86°F Wind Speed: 1 to 5 mph Wind Direction: NW Forecast: Sunny, with a high near 86. |
Saturday Night |
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Temperature: 59°F Wind Speed: 3 mph Wind Direction: N Forecast: Mostly clear, with a low around 59. |
Sunday |
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Temperature: 80°F Wind Speed: 2 to 7 mph Wind Direction: NW Forecast: Sunny, with a high near 80. |