Lake County, IL: Current UV Index and Hourly Forecast

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As of 9:14 AM CDT on October 31, 2025, all 55 cities in Lake County, IL in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Waukegan, IL with a reading of 0.4.

Over the next 24 hours, the highest UV Index reading in Lake County, IL is expected to be 2.7 in Round Lake Beach between 1:00 PM - 2:00 PM CDT today.

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Current UV Index in Cities in Lake County, IL

• Antioch - 0.3
• Bannockburn - 0.4
• Beach Park - 0.4
• Buffalo Grove - 0.4
• Channel Lake - 0.3
• Deer Park - 0.4
• Deerfield - 0.4
• Forest Lake - 0.4
• Fox Lake - 0.3
• Fox Lake Hills - 0.3
• Gages Lake - 0.4
• Grandwood Park - 0.3
• Grayslake - 0.4
• Green Oaks - 0.4
• Gurnee - 0.4
• Hainesville - 0.4
• Hawthorn Woods - 0.4
• Highland Park - 0.4
• Highwood - 0.4
• Indian Creek - 0.4
• Kildeer - 0.4
• Knollwood - 0.4
• Lake Barrington - 0.3
• Lake Bluff - 0.4
• Lake Catherine - 0.3
• Lake Forest - 0.4
• Lake Villa - 0.3
• Lake Zurich - 0.4
• Libertyville - 0.4
• Lincolnshire - 0.4
• Lindenhurst - 0.3
• Long Grove - 0.4
• Long Lake - 0.3
• Mettawa - 0.4
• Mundelein - 0.4
• North Barrington - 0.3
• North Chicago - 0.4
• Old Mill Creek - 0.3
• Park City - 0.4
• Port Barrington - 0.3
• Riverwoods - 0.4
• Round Lake - 0.4
• Round Lake Beach - 0.3
• Round Lake Heights - 0.3
• Round Lake Park - 0.4
• Third Lake - 0.4
• Tower Lakes - 0.3
• Venetian Village - 0.3
• Vernon Hills - 0.4
• Volo - 0.3
• Wadsworth - 0.3
• Wauconda - 0.3
• Waukegan - 0.4
• Winthrop Harbor - 0.4
• Zion - 0.4