Weather in Decatur, Illinois, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Decatur
This Afternoon |
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Temperature: 79°F Wind Speed: 6 mph Wind Direction: SSE Forecast: A chance of showers and thunderstorms. Partly sunny, with a high near 79. South southeast wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
Tonight |
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Temperature: 61°F Wind Speed: 5 mph Wind Direction: S Forecast: A slight chance of showers and thunderstorms before 8pm, then patchy fog. Mostly cloudy, with a low around 61. South wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
Wednesday |
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Temperature: 83°F Wind Speed: 2 to 10 mph Wind Direction: SSE Forecast: Patchy fog before 8am. Mostly sunny, with a high near 83. South southeast wind 2 to 10 mph. |
Wednesday Night |
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Temperature: 66°F Wind Speed: 9 mph Wind Direction: SSE Forecast: Partly cloudy, with a low around 66. South southeast wind around 9 mph, with gusts as high as 16 mph. New rainfall amounts less than a tenth of an inch possible. |
Thursday |
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Temperature: 90°F Wind Speed: 9 to 17 mph Wind Direction: S Forecast: A chance of rain showers between 1pm and 4pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. South wind 9 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
Thursday Night |
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Temperature: 63°F Wind Speed: 9 to 15 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 63. Southwest wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
Friday |
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Temperature: 87°F Wind Speed: 8 to 15 mph Wind Direction: SSW Forecast: A slight chance of rain showers after 1pm. Sunny, with a high near 87. South southwest wind 8 to 15 mph, with gusts as high as 26 mph. New rainfall amounts between a tenth and quarter of an inch possible. |
Friday Night |
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Temperature: 59°F Wind Speed: 9 to 14 mph Wind Direction: SW Forecast: A slight chance of rain showers before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Mostly clear, with a low around 59. Chance of precipitation is 30%. |
Saturday |
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Temperature: 81°F Wind Speed: 10 to 14 mph Wind Direction: W Forecast: Sunny, with a high near 81. |
Saturday Night |
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Temperature: 57°F Wind Speed: 5 to 12 mph Wind Direction: NW Forecast: Partly cloudy, with a low around 57. |
Sunday |
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Temperature: 79°F Wind Speed: 6 mph Wind Direction: N Forecast: A slight chance of rain showers after 1pm. Mostly sunny, with a high near 79. |
Sunday Night |
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Temperature: 57°F Wind Speed: 6 to 9 mph Wind Direction: NE Forecast: A chance of rain showers. Partly cloudy, with a low around 57. |
Monday |
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Temperature: 79°F Wind Speed: 12 mph Wind Direction: E Forecast: A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 79. |
Monday Night |
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Temperature: 63°F Wind Speed: 13 mph Wind Direction: ESE Forecast: Showers and thunderstorms likely. Mostly cloudy, with a low around 63. |