Weather in Decatur, Illinois, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Decatur
This Afternoon |
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Temperature: 84°F Wind Speed: 12 mph Wind Direction: SSW Forecast: Mostly sunny, with a high near 84. South southwest wind around 12 mph, with gusts as high as 18 mph. |
Tonight |
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Temperature: 66°F Wind Speed: 10 mph Wind Direction: S Forecast: Partly cloudy, with a low around 66. South wind around 10 mph, with gusts as high as 21 mph. |
Friday |
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Temperature: 86°F Wind Speed: 12 to 16 mph Wind Direction: SSW Forecast: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86. South southwest wind 12 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
Friday Night |
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Temperature: 69°F Wind Speed: 8 to 14 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms after 9pm. Mostly cloudy, with a low around 69. Southwest wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
Saturday |
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Temperature: 88°F Wind Speed: 8 to 12 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Southwest wind 8 to 12 mph, with gusts as high as 17 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
Saturday Night |
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Temperature: 68°F Wind Speed: 3 to 7 mph Wind Direction: SSW Forecast: A chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 68. South southwest wind 3 to 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
Sunday |
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Temperature: 87°F Wind Speed: 3 to 7 mph Wind Direction: SSE Forecast: A chance of showers and thunderstorms. Partly sunny, with a high near 87. South southeast wind 3 to 7 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
Sunday Night |
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Temperature: 69°F Wind Speed: 7 mph Wind Direction: SSE Forecast: A chance of showers and thunderstorms before 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 69. Chance of precipitation is 60%. |
Monday |
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Temperature: 84°F Wind Speed: 10 mph Wind Direction: SSE Forecast: Showers and thunderstorms likely. Mostly cloudy, with a high near 84. Chance of precipitation is 70%. |
Monday Night |
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Temperature: 68°F Wind Speed: 9 mph Wind Direction: SSE Forecast: Showers and thunderstorms likely. Mostly cloudy, with a low around 68. |
Tuesday |
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Temperature: 87°F Wind Speed: 9 mph Wind Direction: S Forecast: A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 87. |
Tuesday Night |
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Temperature: 69°F Wind Speed: 8 mph Wind Direction: S Forecast: A chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 69. |
Wednesday |
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Temperature: 90°F Wind Speed: 8 mph Wind Direction: SSW Forecast: A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 90. |
Wednesday Night |
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Temperature: 71°F Wind Speed: 7 mph Wind Direction: S Forecast: A slight chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 71. |