Highland Park

Sweet Grass County, Illinois, United States

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Current Weather

21°

Partly Cloudy

Feels Like: 22°

Min: 19°

Max: 27°

The next few hours will be overcast, with tomorrow reaching 23°C and dropping to 19°C. The coming days will be drizzle

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Hourly Forecast

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Today
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Daylight Hours

06:37

Sunrise

18:53

Sunset

12 hours 16 minutes of sunlight today

Moon

Waxing Crescent

11:34

Moonrise

20:22

Moonset

Daily Forecast

Tuesday

19°
27°

Today

18°
23°

Thursday

19°
23°

Friday

18°
21°

Saturday

17°
24°

Sunday

18°
21°

Monday

16°
20°

Tuesday

15°
20°

Wednesday

15°
21°

Thursday

16°
19°

Air Quality Data Available

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Weather in Highland Park tomorrow, September 16, 2026

Cloud cover dominates in Highland Park on September 16, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. Expect a grey start, with morning cloud around 100% by 00:00. Outdoor plans early on should not rely on bright skies.

The temperature range runs from about 18°C up to 23°C. Expect humidity between 72% and 96%, most humid near 00:00. Expect gentle winds, highest near 03:00 at 4.3 km/h.

The afternoon keeps an overcast feel, as cloud reaches about 100% around 12:00. Outdoor plans may still want a flexible backup. Expect visibility near 15.7 km, with poorer spells close to 12.7 km. Daylight runs from 06:38 to 18:51, lasting 12 hours 13 minutes of sunlight today.

The practical takeaway for Highland Park on September 16, 2026 is a cloudy day that stays usable, just not particularly bright, around 23°C.

Frequently asked questions about weather in Highland Park

How warm does it get in Highland Park?

The warmest month in Highland Park is August, with average high temperatures of 24°C. The average temperature during this period is around 22°C.

How cold does it get in Highland Park?

The coldest month in Highland Park is January, with average low temperatures of -4°C. The average temperature during this period is around -2°C.

What is the wettest time of year in Highland Park?

The wettest month in Highland Park is October, with an average of 127mm of precipitation.

What is the driest time of year in Highland Park?

The driest month in Highland Park is February, with an average of 68mm of precipitation.

View full climate insights for Highland Park →

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Metric (°C, km/h)