Weather in Decatur, Illinois, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Decatur
This Afternoon |
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Temperature: 81°F Wind Speed: 12 mph Wind Direction: SSW Forecast: A slight chance of showers and thunderstorms. Mostly cloudy, with a high near 81. South southwest wind around 12 mph, with gusts as high as 18 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
Tonight |
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Temperature: 63°F Wind Speed: 5 to 9 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Southwest wind 5 to 9 mph, with gusts as high as 16 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible. |
Sunday |
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Temperature: 73°F Wind Speed: 12 to 16 mph Wind Direction: NNW Forecast: A slight chance of rain showers before 11am. Mostly sunny, with a high near 73. North northwest wind 12 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible. |
Sunday Night |
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Temperature: 53°F Wind Speed: 2 to 13 mph Wind Direction: WNW Forecast: Partly cloudy, with a low around 53. West northwest wind 2 to 13 mph, with gusts as high as 20 mph. |
Monday |
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Temperature: 75°F Wind Speed: 1 to 8 mph Wind Direction: W Forecast: Sunny, with a high near 75. West wind 1 to 8 mph. |
Monday Night |
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Temperature: 56°F Wind Speed: 7 mph Wind Direction: WSW Forecast: Mostly clear, with a low around 56. West southwest wind around 7 mph. |
Tuesday |
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Temperature: 77°F Wind Speed: 8 to 14 mph Wind Direction: SW Forecast: A slight chance of rain showers between 7am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 77. Southwest wind 8 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible. |
Tuesday Night |
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Temperature: 57°F Wind Speed: 3 to 12 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms. Partly cloudy, with a low around 57. Chance of precipitation is 50%. |
Wednesday |
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Temperature: 81°F Wind Speed: 6 to 22 mph Wind Direction: SSW Forecast: A chance of rain showers before 7am, then showers and thunderstorms likely. Mostly sunny, with a high near 81. Chance of precipitation is 60%. |
Wednesday Night |
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Temperature: 65°F Wind Speed: 18 to 24 mph Wind Direction: SW Forecast: Showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 65. |
Thursday |
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Temperature: 77°F Wind Speed: 13 to 18 mph Wind Direction: W Forecast: A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 77. |
Thursday Night |
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Temperature: 58°F Wind Speed: 2 to 10 mph Wind Direction: NW Forecast: A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 58. |
Juneteenth |
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Temperature: 79°F Wind Speed: 3 to 8 mph Wind Direction: NW Forecast: Sunny, with a high near 79. |
Friday Night |
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Temperature: 60°F Wind Speed: 2 to 6 mph Wind Direction: WSW Forecast: Mostly clear, with a low around 60. |