Lake Zurich

Sweet Grass County, Illinois, United States

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Current Weather

17°

Overcast

Feels Like: 18°

Min: 17°

Max: 24°

The next few hours will be overcast, with today reaching 24°C and dropping to 18°C. The coming days will be mostly cloudy throughout the day.

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Hourly Forecast

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8am
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6pm
7pm
8pm
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11pm
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Today
Tomorrow

Daylight Hours

06:39

Sunrise

18:53

Sunset

12 hours 13 minutes of sunlight today

Moon

Waxing Crescent

12:40

Moonrise

20:53

Moonset

Daily Forecast

Today

17°
24°

Thursday

19°
23°

Friday

17°
22°

Saturday

18°
25°

Sunday

17°
20°

Monday

15°
19°

Tuesday

15°
20°

Wednesday

15°
22°

Thursday

14°
19°

Friday

16°
20°

Air Quality Data Available

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UV Index

No protection needed
0 Low
Low Extreme

Humidity

79% Humid
Low High

Weather in Lake Zurich today, September 16, 2026

Cloud cover dominates in Lake Zurich on September 16, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. The first half of the day looks overcast, as cloud amounts reach about 100% around 07:00. Brighter weather, if it comes, waits until later.

The temperature range runs from about 17°C up to 24°C. Moisture in the air spans 56%-85%, with the highest values around 18:00. Winds stay light, near 4.0 km/h by 16:00, so the day feels still more than breezy.

Expect persistent cloud later on, with amounts around 100% by 12:00. Sunshine remains the exception, not the rule. Visibility stays generally good near 16.0 km on average, though it can drop toward 14.8 km in thicker cloud or showers. Daylight runs from 06:39 to 18:53, lasting 12 hours 13 minutes of sunlight today.

Taken together, overcast skies in Lake Zurich on September 16, 2026 favour indoor or covered options, with temperatures near 24°C.

Frequently asked questions about weather in Lake Zurich

How warm does it get in Lake Zurich?

The warmest month in Lake Zurich 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 Lake Zurich?

The coldest month in Lake Zurich 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 Lake Zurich?

The wettest month in Lake Zurich is May, with an average of 122mm of precipitation.

What is the driest time of year in Lake Zurich?

The driest month in Lake Zurich is February, with an average of 55mm of precipitation.

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Metric (°C, km/h)