Lake County, IL: Current UV Index and Hourly Forecast

• USA →
• Illinois →
• Lake County

As of 12:59 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 1.5.

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 11:00 AM - 12:00 PM CST tomorrow.

Search Cities in Lake County, IL

Current UV Index in Cities in Lake County, IL

• Antioch - 1.5
• Bannockburn - 1.4
• Beach Park - 1.4
• Buffalo Grove - 1.5
• Channel Lake - 1.5
• Deer Park - 1.5
• Deerfield - 1.4
• Forest Lake - 1.5
• Fox Lake - 1.5
• Fox Lake Hills - 1.5
• Gages Lake - 1.5
• Grandwood Park - 1.5
• Grayslake - 1.5
• Green Oaks - 1.5
• Gurnee - 1.5
• Hainesville - 1.5
• Hawthorn Woods - 1.5
• Highland Park - 1.4
• Highwood - 1.4
• Indian Creek - 1.5
• Kildeer - 1.5
• Knollwood - 1.5
• Lake Barrington - 1.5
• Lake Bluff - 1.4
• Lake Catherine - 1.5
• Lake Forest - 1.4
• Lake Villa - 1.5
• Lake Zurich - 1.5
• Libertyville - 1.5
• Lincolnshire - 1.5
• Lindenhurst - 1.5
• Long Grove - 1.5
• Long Lake - 1.5
• Mettawa - 1.5
• Mundelein - 1.5
• North Barrington - 1.5
• North Chicago - 1.4
• Old Mill Creek - 1.5
• Park City - 1.5
• Port Barrington - 1.5
• Riverwoods - 1.5
• Round Lake - 1.5
• Round Lake Beach - 1.5
• Round Lake Heights - 1.5
• Round Lake Park - 1.5
• Third Lake - 1.5
• Tower Lakes - 1.5
• Venetian Village - 1.5
• Vernon Hills - 1.5
• Volo - 1.5
• Wadsworth - 1.5
• Wauconda - 1.5
• Waukegan - 1.4
• Winthrop Harbor - 1.4
• Zion - 1.4