See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
22°
Humid and Overcast
Feels Like: 11°
Min: 14°
Max: 24°
The next few hours will be possible drizzle, with today reaching 24°C and dropping to 13°C. The coming days will be mostly cloudy
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
06:38
Sunrise
18:51
Sunset
Moon
Waxing Crescent
12:36
Moonrise
20:54
Moonset
Daily Forecast
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Thursday
Friday
Saturday
Sunday
Monday
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Weather in Chicago Heights today, September 16, 2026
Expect a muted, overcast feel in Chicago Heights on September 16, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief. The morning sky stays heavily clouded, with cover near 100% around 04:00. Grey conditions set the early tone before any later change.
Expect highs of 24°C and cooler readings close to 14°C. Expect humidity between 62% and 97%, most humid near 04:00. A lighter breeze peaks around 21:00 near 5.0 km/h.
Through the afternoon cloud remains the main feature, with cover near 100% around 12:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 12.6 km, briefly nearer 2.8 km. The sun rises at 06:38 and sets at 18:51, for a total of 12 hours 12 minutes of sunlight today.
Overall, Chicago Heights on September 16, 2026 stays grey and muted, so outdoor plans may want a flexible backup even with a high near 24°C.
Frequently asked questions about weather in Chicago Heights
How warm does it get in Chicago Heights?
The warmest month in Chicago Heights is July, with average high temperatures of 29°C. The average temperature during this period is around 24°C.
How cold does it get in Chicago Heights?
The coldest month in Chicago Heights 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 Chicago Heights?
The wettest month in Chicago Heights is May, with an average of 129mm of precipitation.
What is the driest time of year in Chicago Heights?
The driest month in Chicago Heights is December, with an average of 60mm of precipitation.
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