Weather in Decatur, Illinois, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Decatur
Today |
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Temperature: 59°F Wind Speed: 12 to 16 mph Wind Direction: SSE Forecast: A chance of rain showers after 4pm. Cloudy. High near 59, with temperatures falling to around 52 in the afternoon. South southeast wind 12 to 16 mph, with gusts as high as 31 mph. |
Tonight |
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Temperature: 52°F Wind Speed: 17 to 21 mph Wind Direction: S Forecast: A chance of rain showers before 9pm, then a chance of rain between 10pm and 5am. Mostly cloudy, with a low around 52. South wind 17 to 21 mph, with gusts as high as 38 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
Wednesday |
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Temperature: 68°F Wind Speed: 12 to 17 mph Wind Direction: SW Forecast: Mostly sunny. High near 68, with temperatures falling to around 63 in the afternoon. Southwest wind 12 to 17 mph, with gusts as high as 28 mph. |
Wednesday Night |
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Temperature: 46°F Wind Speed: 7 mph Wind Direction: S Forecast: A chance of rain after midnight. Mostly cloudy, with a low around 46. South wind around 7 mph. Chance of precipitation is 30%. |
Thursday |
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Temperature: 67°F Wind Speed: 8 to 15 mph Wind Direction: S Forecast: A slight chance of rain before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 67. South wind 8 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
Thursday Night |
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Temperature: 34°F Wind Speed: 12 to 17 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms before midnight. Mostly clear, with a low around 34. Southwest wind 12 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
Friday |
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Temperature: 46°F Wind Speed: 12 to 20 mph Wind Direction: W Forecast: Sunny, with a high near 46. West wind 12 to 20 mph, with gusts as high as 30 mph. |
Friday Night |
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Temperature: 27°F Wind Speed: 10 mph Wind Direction: WNW Forecast: Mostly clear, with a low around 27. |
Saturday |
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Temperature: 42°F Wind Speed: 8 to 12 mph Wind Direction: NW Forecast: A slight chance of snow after noon. Mostly sunny, with a high near 42. |
Saturday Night |
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Temperature: 24°F Wind Speed: 12 mph Wind Direction: NW Forecast: A slight chance of snow. Partly cloudy, with a low around 24. |
Sunday |
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Temperature: 35°F Wind Speed: 14 mph Wind Direction: NW Forecast: Mostly sunny, with a high near 35. |
Sunday Night |
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Temperature: 17°F Wind Speed: 10 mph Wind Direction: NW Forecast: Mostly clear, with a low around 17. |
Monday |
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Temperature: 36°F Wind Speed: 6 to 9 mph Wind Direction: NNW Forecast: Sunny, with a high near 36. |
Monday Night |
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Temperature: 20°F Wind Speed: 5 to 8 mph Wind Direction: ENE Forecast: Mostly clear, with a low around 20. |