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July 30th, 2025 :: 6:18 pm CDT   

Local Weather Report for
Crystal Lake
Illinois, United States

 Crystal Lake Weather Forecast Summary  
 
Today
Jul 30th
Thursday
Jul 31st
Friday
Aug 1st
Saturday
Aug 2nd
Sunday
Aug 3rd
Showers Showers Cloudy Cloudy Cloudy
85°F
75°F
63°F
76°F
64°F
79°F
63°F
83°F
65°F
 
 Crystal Lake Detailed Weather Forecast  
 
Wednesday, July 30th, 2025
Evening Temperature: 66°F
Cloudy with periods of rain. Windy at times.
Thursday, July 31st, 2025
Overnight Temperature: 64°F
Cloudy with showers. Windy at times.
Morning Temperature: 72°F
A mix of cloud and sun with a slight chance of showers. Windy at times.
Afternoon Temperature: 72°F
A mix of cloud and sun. Windy at times.
Evening Temperature: 64°F
A mix of cloudy and clear skies.
Friday, August 1st, 2025
Overnight Temperature: 64°F
Clear.
Morning Temperature: 74°F
Cloudy. Windy at times.
Afternoon Temperature: 74°F
Sunny.
Evening Temperature: 65°F
A mix of cloudy and clear skies.
Saturday, August 2nd, 2025
Overnight Temperature: 63°F
Cloudy.
Morning Temperature: 76°F
Cloudy.
Afternoon Temperature: 76°F
Cloudy.
Evening Temperature: 67°F
Clear with cloudy periods.
Sunday, August 3rd, 2025
Overnight Temperature: 65°F
A mix of cloudy and clear skies.
Morning Temperature: 78°F
A mix of cloud and sun.
Afternoon Temperature: 80°F
A mix of cloud and sun.
Evening Temperature: 70°F
Cloudy.
Monday, August 4th, 2025
Overnight Temperature: 66°F
Cloudy.
Morning Temperature: 74°F
Cloudy.
Afternoon Temperature: 72°F
Cloudy with a chance of showers. Slight chance of a thunderstorm.
Evening Temperature: 68°F
Cloudy with a few showers. Chance of a thunderstorm.
Tuesday, August 5th, 2025
Overnight Temperature: 68°F
Cloudy with showers likely. Slight chance of a thunderstorm.
Morning Temperature: 75°F
Cloudy with showers likely. Chance of a thunderstorm.
Afternoon Temperature: 76°F
Sunny with cloudy periods with showers likely. Chance of a thunderstorm.
Evening Temperature: 69°F
Clear. Slight chance of a thunderstorm.
Wednesday, August 6th, 2025
Overnight Temperature: 67°F
Mostly clear.
Morning Temperature: 80°F
Mostly sunny. Slight chance of a thunderstorm.
Afternoon Temperature: 83°F
Cloudy. Chance of a thunderstorm.
Evening Temperature: 74°F
Clear. Chance of a thunderstorm.
Thursday, August 7th, 2025
Overnight Temperature: 72°F
Mostly clear. Chance of a thunderstorm.
Morning Temperature: 83°F
Sunny. Chance of a thunderstorm.
Afternoon Temperature: 87°F
Sunny. Chance of a thunderstorm.
Evening Temperature: 77°F
A mix of cloudy and clear skies. Chance of a thunderstorm. Windy at times.





 

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4:52 PM  77°F
Overcast
 
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4:52 PM  75°F
Mostly Cloudy
 
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4:53 PM  68°F
light rain
 
Harvard, IL 
 
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4:50 PM  64°F
Overcast

This WeatherCity Weather Forecast for Crystal Lake, Illinois, United States is computed using a computer-generated forecast model and should be considered experimental. Please confirm this weather information with your official weather information office

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