Weather in Decatur, Illinois, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Decatur
This Afternoon |
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Temperature: 42°F Wind Speed: 7 mph Wind Direction: SW Forecast: Mostly cloudy, with a high near 42. Southwest wind around 7 mph. |
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Tonight |
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Temperature: 35°F Wind Speed: 5 to 8 mph Wind Direction: S Forecast: Mostly cloudy, with a low around 35. South wind 5 to 8 mph. |
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Sunday |
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Temperature: 59°F Wind Speed: 8 to 14 mph Wind Direction: S Forecast: Partly sunny. High near 59, with temperatures falling to around 53 in the afternoon. South wind 8 to 14 mph, with gusts as high as 24 mph. |
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Sunday Night |
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Temperature: 50°F Wind Speed: 9 to 14 mph Wind Direction: SSW Forecast: A chance of rain. Mostly cloudy. Low around 50, with temperatures rising to around 55 overnight. South southwest wind 9 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
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Monday |
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Temperature: 55°F Wind Speed: 8 to 15 mph Wind Direction: W Forecast: A chance of rain. Mostly cloudy. High near 55, with temperatures falling to around 45 in the afternoon. West wind 8 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible. |
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Monday Night |
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Temperature: 25°F Wind Speed: 8 to 14 mph Wind Direction: WNW Forecast: Partly cloudy, with a low around 25. West northwest wind 8 to 14 mph, with gusts as high as 24 mph. |
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Tuesday |
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Temperature: 38°F Wind Speed: 3 to 7 mph Wind Direction: W Forecast: Mostly sunny, with a high near 38. West wind 3 to 7 mph. |
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Tuesday Night |
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Temperature: 30°F Wind Speed: 3 mph Wind Direction: S Forecast: Mostly cloudy, with a low around 30. |
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Wednesday |
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Temperature: 41°F Wind Speed: 5 to 8 mph Wind Direction: SE Forecast: A chance of rain after noon. Partly sunny, with a high near 41. Chance of precipitation is 50%. |
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Wednesday Night |
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Temperature: 31°F Wind Speed: 8 mph Wind Direction: ENE Forecast: A chance of rain and snow. Mostly cloudy, with a low around 31. Chance of precipitation is 50%. |
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Thanksgiving Day |
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Temperature: 39°F Wind Speed: 8 to 12 mph Wind Direction: NNE Forecast: A chance of rain and snow before noon, then a chance of rain and snow. Mostly cloudy, with a high near 39. |
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Thursday Night |
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Temperature: 24°F Wind Speed: 10 mph Wind Direction: N Forecast: A chance of rain and snow. Mostly cloudy, with a low around 24. |
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Friday |
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Temperature: 35°F Wind Speed: 10 to 14 mph Wind Direction: NW Forecast: A slight chance of rain before noon. Mostly sunny, with a high near 35. |
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Friday Night |
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Temperature: 18°F Wind Speed: 7 to 10 mph Wind Direction: NW Forecast: Partly cloudy, with a low around 18. |