7-Day Forecast Summary
7-Day Detailed Weather Forecast for Grass Lake
Today |
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Temperature: 91°F Wind Speed: 5 to 9 mph Wind Direction: WSW Forecast: Mostly sunny. High near 91, with temperatures falling to around 89 in the afternoon. Heat index values as high as 99. West southwest wind 5 to 9 mph, with gusts as high as 18 mph. New rainfall amounts less than a tenth of an inch possible. |
Tonight |
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Temperature: 71°F Wind Speed: 2 to 8 mph Wind Direction: WSW Forecast: A slight chance of showers and thunderstorms between 8pm and 5am. Mostly cloudy, with a low around 71. Heat index values as high as 96. West southwest wind 2 to 8 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible. |
Wednesday |
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Temperature: 93°F Wind Speed: 3 to 10 mph Wind Direction: WSW Forecast: A slight chance of showers and thunderstorms between 2pm and 3pm. Sunny. High near 93, with temperatures falling to around 90 in the afternoon. Heat index values as high as 100. West southwest wind 3 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%. |
Wednesday Night |
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Temperature: 71°F Wind Speed: 3 to 10 mph Wind Direction: WSW Forecast: A chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers and thunderstorms between 11pm and 2am, then showers and thunderstorms likely. Partly cloudy, with a low around 71. Heat index values as high as 97. West southwest wind 3 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible. |
Thursday |
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Temperature: 88°F Wind Speed: 6 mph Wind Direction: W Forecast: Rain showers likely before 8am, then a chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 88. West wind around 6 mph. Chance of precipitation is 60%. |
Thursday Night |
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Temperature: 67°F Wind Speed: 0 to 5 mph Wind Direction: NE Forecast: A chance of showers and thunderstorms. Partly cloudy, with a low around 67. Chance of precipitation is 50%. |
Friday |
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Temperature: 86°F Wind Speed: 1 to 5 mph Wind Direction: NE Forecast: A chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 86. |
Friday Night |
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Temperature: 65°F Wind Speed: 1 to 5 mph Wind Direction: ENE Forecast: A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. |
Saturday |
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Temperature: 83°F Wind Speed: 2 to 6 mph Wind Direction: E Forecast: A chance of showers and thunderstorms. Partly sunny, with a high near 83. |
Saturday Night |
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Temperature: 60°F Wind Speed: 2 to 6 mph Wind Direction: ENE Forecast: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 60. |
Sunday |
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Temperature: 81°F Wind Speed: 2 to 7 mph Wind Direction: E Forecast: A slight chance of rain showers. Mostly sunny, with a high near 81. |
Sunday Night |
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Temperature: 59°F Wind Speed: 6 mph Wind Direction: E Forecast: A slight chance of rain showers before 2am. Partly cloudy, with a low around 59. |
Labor Day |
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Temperature: 78°F Wind Speed: 3 to 8 mph Wind Direction: NE Forecast: Mostly sunny, with a high near 78. |
Monday Night |
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Temperature: 57°F Wind Speed: 2 to 8 mph Wind Direction: E Forecast: A slight chance of rain showers after 2am. Partly cloudy, with a low around 57. |

