Local weather forecast

Weather in Crystal Lake, IL

Updated 2026-09-26 11:00 local time · ZIP codes 60012, 60014

Overcast
Now61°F

Overcast

High / Low64° / 52°
Rain chance10%
Wind7 mph
Weather alerts

Active alerts

1
Flood Warning issued September 25 at 8:41PM CDT until September 28 at 7:00AM CDT by NWS Chicago IL

...The Flood Warning is extended for the following rivers in Illinois... Des Plaines River near Gurnee affecting Lake IL County. Des Plaines River near Russell affecting Lake IL County. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Des Plaines River from US-41 in Gurnee downstream to Townline Road in Vernon Hills, including the Gurnee gauge. * WHEN...Until Monday morning. * IMPACTS...At 9.0 feet, Kilbourne Road and Emerald Avenue threatened near Grand Avenue in Gurnee. * ADDITIONAL DETAILS... - At 8:30 PM CDT Friday the stage was 8.2 feet. - Recent Activity...The maximum river stage in the 24 hours ending at 8:30 PM CDT Friday was 8.3 feet. - Forecast...The river is expected to fall below flood stage early next week. - Flood stage is 7.0 feet. - http://www.weather.gov/safety/flood

Safety instructions

A Flood Warning means water levels above flood stage are imminent or may already be occurring. Persons along rivers and streams in the warned area should take immediate precautions to protect life and property. These forecasts are based on observed precipitation as well as forecast precipitation 24 hours into the future. Changes to the rainfall forecast, or any additional rainfall after 24 hours, may cause changes to these river forecasts. Additional information is available at www.weather.gov. The next statement will be issued by Saturday afternoon.

Hourly

Next hours

NowOvercast61°13% rain
12 PMOvercast63°11% rain
1 PMOvercast64°11% rain
2 PMOvercast64°10% rain
3 PMPartly Cloudy64°4% rain
4 PMPartly Cloudy62°6% rain
5 PMOvercast60°14% rain
6 PMOvercast60°16% rain
7 PMOvercast56°14% rain
8 PMOvercast55°14% rain
9 PMOvercast55°13% rain
10 PMOvercast54°14% rain
Forecast

3-day weather forecast

Today2026-09-26
Overcast
64° 52°Overcast
Rain 10%Gust 7 mph
Tomorrow2026-09-27
Overcast
67° 53°Overcast
Rain 14%Gust 6 mph
Monday2026-09-28
Sunny
70° 52°Sunny
Rain 7%Gust 7 mph
Conditions

Weather details

Feels like56°F
Humidity53%
Pressure30.21 inHg
Visibility6 mi
Wind7 mph E
Wind gusts9 mph
Precipitation0.00 in
UV index4
Daylight

Sunrise, sunset and moon

Sunrise06:45 AM
Sunset06:44 PM
Moonrise06:32 PM
Moon phaseFull Moon
Next 24 hours

Key weather changes ahead

Warmest hour2 PM · 64°F
Coolest hour3 AM · 53°F
Highest rain chance7 AM · 28%
Strongest gusts3 PM · 18 mph
Practical guide

Weather insights for today

Umbrella not essential

Rain chance stays relatively low over the next 12 hours (up to 16%).

Light layers should work

It feels like 56°F with winds near 7 mph.

Best window: 3 PM

64°F, 4% rain chance and 7 mph wind.

Driving conditions look generally normal

Visibility is around 6 mi; gusts may reach 18 mph.

Good conditions for an easy run

Current temperature is 61°F, wind 7 mph, rain chance up to 16%.

Moderate UV protection recommended

UV index is 4. Sunscreen and sunglasses are sensible for longer outdoor time.

Local weather characteristics in Crystal Lake

Illinois has four distinct seasons with hot, humid summers, cold winters, strong frontal changes and frequent spring and summer thunderstorms.

Crystal Lake is part of the Midwest weather region. The forecast point is near 42.24°N latitude and 88.32°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.

Crystal Lake weather today

Overcast and 61°F in Crystal Lake, IL. Today's high is 64°F with a 10% rain chance. Winds are around 7 mph with gusts near 9 mph. Relative humidity is 53%, pressure is 30.21 inHg, and visibility is about 6 miles.

Tonight and tomorrow in Crystal Lake

Sunrise is at 06:45 AM and sunset is at 06:44 PM. Tomorrow's forecast calls for Overcast with a high near 67°F and a low near 53°F. The maximum rain chance is 14%.

Nearby

Weather near Crystal Lake

Illinois

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