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Hourly Forecast
Daylight Hours
06:39
Sunrise
18:52
Sunset
Moon
Waxing Crescent
12:41
Moonrise
20:52
Moonset
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Weather in Grayslake today, September 16, 2026
Grayslake looks cloudy on September 16, 2026, with grey skies for much of the day. Sunshine stays limited, so the overall tone is muted from the morning onward. The first half of the day looks overcast, as cloud amounts reach about 100% around 08:00. Brighter weather, if it comes, waits until later.
Temperatures climb from an overnight low near 17°C toward a daytime high of about 22°C. Moisture in the air spans 69%-83%, with the highest values around 08:00. Winds stay light, near 4.7 km/h by 09:00, so the day feels still more than breezy.
Afternoon skies stay clogged, peaking close to 100% near 12:00. The grey theme continues rather than clearing out. Horizontal visibility holds close to 16.1 km. Daylight runs from 06:39 to 18:52, lasting 12 hours 13 minutes of sunlight today.
Overall, Grayslake on September 16, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 22°C.
Frequently asked questions about weather in Grayslake
How warm does it get in Grayslake?
The warmest month in Grayslake is July, with average high temperatures of 27°C. The average temperature during this period is around 23°C.
How cold does it get in Grayslake?
The coldest month in Grayslake is January, with average low temperatures of -6°C. The average temperature during this period is around -3°C.
What is the wettest time of year in Grayslake?
The wettest month in Grayslake is May, with an average of 122mm of precipitation.
What is the driest time of year in Grayslake?
The driest month in Grayslake is February, with an average of 55mm of precipitation.
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