Crystal Lake, IL Weather

Updated: Sat Jul 19th 2025 6:45 PM CDT

Partly Cloudy

83^°F 28^°C

Feels Like 93^°F / 34^°C

Crystal Lake, IL weather condition is Partly Cloudy and 83°F.

Today's Weather in Crystal Lake,IL

The current weather in Crystal Lake IL as of 6:45 PM CDT on Sat Jul 19th 2025, has a sky condition of Partly Cloudy with the visibility of 9 mile(s) and the UV index at 1.1. It is 83 degrees fahrenheit but feels like 93 degrees. The barometric pressure is 29.87 - measured by inches of mercury - and is steady since its last observation. The humidity is 63 percent that's falling since the last report, with a dew point of 69 degrees fahrenheit which is falling. Wind direction is from the West-Southwest at 9.6 miles per hour, gusting at 13 miles per hour. Sunrise was at 5:34 AM and Sunset is at 8:25 PM. The moon phase is a Waning Crescent moon rising at 12:25 AM. Thank you for listening to the weather report from LocalConditions.com!

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Barometer 29.87 inHg. falling
Humidity 63% falling
Heat Index 82°F
Wind from WSW. 9.6 mph
Wind Gust 13 miles per hour
Wind Chill 77°F
UV Index 1.1

Dew Point 69°F falling
Visibility 9 mi.
Sunrise 5:34 AM
Sunset 8:25 PM
Moonrise 12:25 AM
Moonset 3:42 PM
Moon Phase Waning Crescent Moon

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Radar Alerts Next 48 Hours Traffic

Hourly Forecast - Next 8 hours

5 Day Forecast

Overcast

Overcast with a high of 72°F and a low of 61°F. Winds will be light at 10mph at times. Expect high humidity with levels above 80% to 94%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 72° \| Lo 61°	94%	0%	0%	9.6 mph

Cloudy

Cloudy with a high of 81°F and a low of 58°F. Winds will be moderate, blowing around 12mph. Expect high humidity with levels above 80% to 83%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 81° \| Lo 58°	83%	0%	0%	11.6 mph

Moderate Rain

Moderate Rain with a high of 91°F and a low of 69°F. Probable rainfall forecasted, having an 82% chance with an estimated 0.66in. Winds will be moderate, blowing around 12mph. Expect high humidity with levels above 80% to 86%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 91° \| Lo 69°	86%	82% \| est. 0.66in	0%	11.4 mph

Partly Cloudy

Partly Cloudy with a high of 90°F and a low of 70°F. Winds will be moderate, blowing around 16mph. Expect high humidity with levels above 80% to 84%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 90° \| Lo 70°	84%	0%	0%	15.4 mph

Patchy Rain Nearby

Patchy Rain Nearby with a high of 89°F and a low of 76°F. Probable rainfall forecasted, having a 51% chance with an estimated 0.1in. Winds will be moderate, blowing around 15mph. Expect high humidity with levels above 80% to 85%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 89° \| Lo 76°	85%	51% \| est. 0.1in	0%	14.3 mph

Yesterday Tomorrow 5-Day

Weather Radar Map

Live Crystal Lake, IL weather with granular precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Wednesday, as you toggle through each map layer. Use the slider to move forward and back in time to view how current data and forecasts will affect the region; you can press or click on the map to show metrics available for each tab. The related timestamp is located above the Play button which will animate the weather forecast.

Hourly Temperature

The current temperature today is 83^°F. The morning temperature of 64°^F is lowest at 12am with the daytime high of 83°^F at 6pm and a low around 70°^F at 9pm is expected.