Lake County, IL: Current UV Index and Hourly Forecast

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As of 1:19 PM CST on January 20, 2026, 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 Round Lake Beach, IL with a reading of 1.3.

Over the next 24 hours, the highest UV Index reading in Lake County, IL is expected to be 1.6 in Round Lake Beach between 12:00 PM - 1:00 PM CST tomorrow.

Search Cities in Lake County, IL

Current UV Index in Cities in Lake County, IL

• Antioch - 1.3
• Bannockburn - 1.1
• Beach Park - 1.3
• Buffalo Grove - 1.2
• Channel Lake - 1.3
• Deer Park - 1.2
• Deerfield - 1.1
• Forest Lake - 1.2
• Fox Lake - 1.3
• Fox Lake Hills - 1.3
• Gages Lake - 1.2
• Grandwood Park - 1.3
• Grayslake - 1.2
• Green Oaks - 1.2
• Gurnee - 1.2
• Hainesville - 1.2
• Hawthorn Woods - 1.2
• Highland Park - 1.1
• Highwood - 1.1
• Indian Creek - 1.2
• Kildeer - 1.2
• Knollwood - 1.2
• Lake Barrington - 1.3
• Lake Bluff - 1.1
• Lake Catherine - 1.3
• Lake Forest - 1.1
• Lake Villa - 1.3
• Lake Zurich - 1.2
• Libertyville - 1.2
• Lincolnshire - 1.2
• Lindenhurst - 1.3
• Long Grove - 1.2
• Long Lake - 1.3
• Mettawa - 1.2
• Mundelein - 1.2
• North Barrington - 1.3
• North Chicago - 1.1
• Old Mill Creek - 1.3
• Park City - 1.2
• Port Barrington - 1.3
• Riverwoods - 1.2
• Round Lake - 1.2
• Round Lake Beach - 1.3
• Round Lake Heights - 1.3
• Round Lake Park - 1.2
• Third Lake - 1.2
• Tower Lakes - 1.3
• Venetian Village - 1.3
• Vernon Hills - 1.2
• Volo - 1.3
• Wadsworth - 1.3
• Wauconda - 1.3
• Waukegan - 1.1
• Winthrop Harbor - 1.3
• Zion - 1.3