Weather in Decatur, Illinois, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Decatur
This Afternoon |
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Temperature: 27°F Wind Speed: 9 to 16 mph Wind Direction: SSW Forecast: Patchy blowing snow before 3pm. Sunny, with a high near 27. South southwest wind 9 to 16 mph, with gusts as high as 26 mph. |
Tonight |
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Temperature: 19°F Wind Speed: 8 mph Wind Direction: SSW Forecast: Mostly clear, with a low around 19. South southwest wind around 8 mph. |
Tuesday |
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Temperature: 37°F Wind Speed: 7 to 10 mph Wind Direction: SSW Forecast: Sunny, with a high near 37. South southwest wind 7 to 10 mph, with gusts as high as 18 mph. |
Tuesday Night |
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Temperature: 28°F Wind Speed: 6 to 10 mph Wind Direction: SW Forecast: Mostly cloudy, with a low around 28. Southwest wind 6 to 10 mph, with gusts as high as 17 mph. |
Wednesday |
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Temperature: 39°F Wind Speed: 3 to 9 mph Wind Direction: SW Forecast: Mostly sunny, with a high near 39. Southwest wind 3 to 9 mph. |
Wednesday Night |
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Temperature: 35°F Wind Speed: 10 to 18 mph Wind Direction: SSE Forecast: A chance of rain after midnight. Mostly cloudy, with a low around 35. South southeast wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
Thursday |
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Temperature: 49°F Wind Speed: 21 mph Wind Direction: WSW Forecast: Rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 49. West southwest wind around 21 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible. |
Thursday Night |
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Temperature: 14°F Wind Speed: 8 to 18 mph Wind Direction: WNW Forecast: Partly cloudy, with a low around 14. |
Friday |
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Temperature: 31°F Wind Speed: 7 to 12 mph Wind Direction: SW Forecast: Mostly sunny, with a high near 31. |
Friday Night |
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Temperature: 26°F Wind Speed: 14 mph Wind Direction: S Forecast: Mostly cloudy, with a low around 26. |
Saturday |
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Temperature: 47°F Wind Speed: 10 to 14 mph Wind Direction: SSW Forecast: A slight chance of rain after noon. Partly sunny, with a high near 47. |
Saturday Night |
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Temperature: 30°F Wind Speed: 9 mph Wind Direction: WNW Forecast: A slight chance of rain before midnight. Mostly cloudy, with a low around 30. |
Sunday |
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Temperature: 42°F Wind Speed: 8 mph Wind Direction: NNE Forecast: Partly sunny, with a high near 42. |
Sunday Night |
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Temperature: 29°F Wind Speed: 7 mph Wind Direction: ESE Forecast: A slight chance of rain. Mostly cloudy, with a low around 29. |