Grayslake, IL Weather Forecast
Lake County, Illinois
Live radar, warnings and storm tracking for Grayslake, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Grayslake
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Grayslake, IL at a glance
Grayslake is home to about 20,954 people in Lake County, across 11 square miles. It ranks 114th by population of 441 places in Illinois with a forecast here. The nearest neighbour with its own forecast is Hainesville, 2 miles away.
- County
- Lake County
- Population
- 20,954 2023 est.
- Land area
- 11 sq mi
- People per sq mi
- 1,920
- Forecast point
- 42.3408°N, 88.0336°W
How well can the network see Grayslake?
The nearest Doppler radar is KMKX (Milwaukee, WI), to the NNW. Its lowest scan passes about 3,600 ft above Grayslake. Close enough to see rotation in the low part of a storm, where tornadoes form.
The closest weather station is KUGN (Waukegan Rgnl). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Grayslake
Elsewhere in Illinois
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