Grayslake, Illinois Weather
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Weather Forecast for Grayslake, Illinois : Lake County
Issued: 7:15 am CDT Aug 17, 2019 Latitude: 42.3444664 Longitude: -88.041746 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Sunday Monday Tuesday Wednesday Thursday Friday
40% chance of thunderstorms on Today 80% chance of thunderstorms on Tonight 80% chance of thunderstorms on Sunday 20% chance of thunderstorms on Monday 40% chance of thunderstorms on Tuesday Mostly Sunny on Wednesday Mostly Sunny on Thursday Mostly Sunny on Friday
High: 82°F Low: 69°F High: 85°F High: 83°F High: 86°F High: 79°F High: 76°F High: 78°F
Low: 68°F Low: 67°F Low: 67°F Low: 59°F Low: 58°F  
Thunderstorms Thunderstorms Thunderstorms Thunderstorms Thunderstorms Mostly Sunny Mostly Sunny Mostly Sunny
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40% chance of thunderstorms Today Today... A 40 percent chance of showers and thunderstorms, mainly after 11am. Mostly cloudy, with a high near 82. Calm wind becoming south southeast around 5 mph in the afternoon.

80% chance of thunderstorms Tonight Tonight... Showers and thunderstorms, mainly after 1am. Low around 69. South wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

80% chance of thunderstorms Sunday Sunday... Showers and thunderstorms, mainly before 7am. High near 85. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

30% chance of thunderstorms Sunday Night Sunday Night... A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 68. Southwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.

20% chance of thunderstorms Monday Monday... A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Calm wind becoming east northeast around 5 mph.

20% chance of thunderstorms Monday Night Monday Night... A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.

40% chance of thunderstorms Tuesday Tuesday... A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 86.

20% chance of thunderstorms Tuesday Night Tuesday Night... A chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 67.

Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 79.

Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 59.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 76.

Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 58.

Mostly Sunny on Friday Friday... Mostly sunny, with a high near 78.

Current Radar Image


Sun Almanac for Grayslake, Illinois
Sunrise: 06:02 AM
Sunset: 7:51 PM
Civil Sunrise:05:32 AM
Civil Sunset: 8:21 PM
Nautical Sunrise: 04:55 AM
Nautical Sunset: 8:58 PM
Astro Sunrise: 04:15 AM
Astro Sunset: 9:37 PM
Moon Almanac for Grayslake, Illinois
Moon Phase: Full Moon
Moon Illumination: 96%
Moon Age: 16.5 Days
Moon is currently below the horizon
Distance from Moon to Earth: 251,934 miles
Upcoming Lunar Events for
Grayslake:
Next EventEvent TimeIllum

Moonrise:09:16 pm Sat94.3%
High Moon:02:59 am Sun93.2%
Moonset:08:50 am Sun92.0%
New Moon: Wed Jul 31
First Quarter: Wed Aug 7
Full Moon: Thu Aug 15
Last Quarter: Fri Aug 23
New Moon: Fri Aug 30
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.