North Chicago

Sweet Grass County, Illinois, United States

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Current Weather

27°

Clear

Feels Like: 26°

Min: 19°

Max: 27°

The next few hours will be overcast, with today reaching 27°C and dropping to 17°C. The coming days will be mostly cloudy throughout the day.

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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

Today

19°
27°

Wednesday

17°
21°

Thursday

19°
23°

Friday

17°
21°

Saturday

18°
24°

Sunday

18°
21°

Monday

16°
20°

Tuesday

15°
20°

Wednesday

15°
21°

Thursday

16°
19°

Air Quality Data Available

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UV Index

No protection needed
2 Low
Low Extreme

Humidity

63% Comfortable
Low High

Weather in North Chicago today, September 15, 2026

North Chicago stays under cloudy skies on September 15, 2026, with only brief brighter breaks. Plan for a day that feels grey more often than open.

Expect highs of 27°C and cooler readings close to 19°C. Relative humidity sits between 61% and 90%, reaching its peak around 23:00. Airflow remains manageable, reaching about 4.8 km/h around 15:00.

Expect persistent cloud later on, with amounts around 100% by 19:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 15.9 km on average, though it can drop toward 15.0 km in thicker cloud or showers. The sun rises at 06:37 and sets at 18:53, for a total of 12 hours 16 minutes of sunlight today.

In short, cloud leads the story in North Chicago on September 15, 2026; expect limited sun and a peak around 27°C.

Frequently asked questions about weather in North Chicago

How warm does it get in North Chicago?

The warmest month in North Chicago 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 North Chicago?

The coldest month in North Chicago 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 North Chicago?

The wettest month in North Chicago is October, with an average of 127mm of precipitation.

What is the driest time of year in North Chicago?

The driest month in North Chicago is February, with an average of 68mm of precipitation.

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Metric (°C, km/h)