Weather in Decatur, Illinois, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Decatur
Tonight |
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Temperature: 18°F Wind Speed: 7 mph Wind Direction: SSW Forecast: Mostly clear, with a low around 18. South southwest wind around 7 mph. |
Tuesday |
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Temperature: 37°F Wind Speed: 7 to 12 mph Wind Direction: SSW Forecast: Sunny, with a high near 37. South southwest wind 7 to 12 mph, with gusts as high as 20 mph. |
Tuesday Night |
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Temperature: 29°F Wind Speed: 6 to 13 mph Wind Direction: SW Forecast: Mostly cloudy, with a low around 29. Southwest wind 6 to 13 mph, with gusts as high as 18 mph. |
Wednesday |
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Temperature: 39°F Wind Speed: 2 to 8 mph Wind Direction: WSW Forecast: Mostly sunny, with a high near 39. West southwest wind 2 to 8 mph. |
Wednesday Night |
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Temperature: 34°F Wind Speed: 9 to 18 mph Wind Direction: SSE Forecast: A chance of rain after midnight. Mostly cloudy. Low around 34, with temperatures rising to around 43 overnight. South southeast wind 9 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. |
Thursday |
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Temperature: 50°F Wind Speed: 18 mph Wind Direction: WSW Forecast: Rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 50. West southwest wind around 18 mph, with gusts as high as 32 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: 15°F Wind Speed: 10 to 20 mph Wind Direction: WNW Forecast: Partly cloudy, with a low around 15. West northwest wind 10 to 20 mph, with gusts as high as 26 mph. |
Friday |
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Temperature: 31°F Wind Speed: 9 mph Wind Direction: WSW Forecast: Mostly sunny, with a high near 31. |
Friday Night |
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Temperature: 25°F Wind Speed: 10 to 14 mph Wind Direction: S Forecast: Partly cloudy, with a low around 25. |
Saturday |
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Temperature: 47°F Wind Speed: 9 to 14 mph Wind Direction: SSW Forecast: Partly sunny, with a high near 47. |
Saturday Night |
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Temperature: 27°F Wind Speed: 8 mph Wind Direction: WNW Forecast: Mostly cloudy, with a low around 27. |
Sunday |
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Temperature: 41°F Wind Speed: 7 mph Wind Direction: NNE Forecast: Mostly sunny, with a high near 41. |
Sunday Night |
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Temperature: 30°F Wind Speed: 7 mph Wind Direction: ENE Forecast: Mostly cloudy, with a low around 30. |
Monday |
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Temperature: 45°F Wind Speed: 7 mph Wind Direction: ESE Forecast: Mostly cloudy, with a high near 45. |