Weather in Grayslake, Illinois, United States
7-Day Forecast Summary
7-Day Detailed Weather Forecast for Grayslake
Overnight |
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Temperature: 68°F Wind Speed: 0 mph Wind Direction: Forecast: Mostly clear, with a low around 68. South wind around 0 mph. |
Sunday |
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Temperature: 93°F Wind Speed: 0 to 10 mph Wind Direction: SSW Forecast: A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Heat index values as high as 100. South southwest wind 0 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
Sunday Night |
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Temperature: 70°F Wind Speed: 5 mph Wind Direction: SSW Forecast: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Heat index values as high as 98. South southwest wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible. |
Monday |
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Temperature: 84°F Wind Speed: 5 to 10 mph Wind Direction: W Forecast: A chance of showers and thunderstorms. Mostly cloudy, with a high near 84. West wind 5 to 10 mph. Chance of precipitation is 50%. |
Monday Night |
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Temperature: 64°F Wind Speed: 5 to 10 mph Wind Direction: WNW Forecast: A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 64. West northwest wind 5 to 10 mph. Chance of precipitation is 50%. |
Tuesday |
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Temperature: 84°F Wind Speed: 10 mph Wind Direction: WNW Forecast: Sunny, with a high near 84. |
Tuesday Night |
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Temperature: 64°F Wind Speed: 5 to 10 mph Wind Direction: WNW Forecast: Mostly clear, with a low around 64. |
Wednesday |
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Temperature: 87°F Wind Speed: 5 to 10 mph Wind Direction: W Forecast: Sunny, with a high near 87. |
Wednesday Night |
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Temperature: 66°F Wind Speed: 5 to 10 mph Wind Direction: W Forecast: Mostly clear, with a low around 66. |
Thursday |
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Temperature: 87°F Wind Speed: 5 to 10 mph Wind Direction: NNW Forecast: A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 87. |
Thursday Night |
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Temperature: 67°F Wind Speed: 5 mph Wind Direction: SE Forecast: A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67. |
Independence Day |
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Temperature: 89°F Wind Speed: 5 to 15 mph Wind Direction: SSW Forecast: A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89. |
Friday Night |
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Temperature: 73°F Wind Speed: 10 mph Wind Direction: SSW Forecast: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. |
Saturday |
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Temperature: 90°F Wind Speed: 10 to 15 mph Wind Direction: SW Forecast: A chance of showers and thunderstorms. Mostly sunny, with a high near 90. |