Lake County, IL: Current UV Index and Hourly Forecast

• USA →
• Illinois →
• Lake County

As of 11:39 AM CDT on May 20, 2026, all 55 cities in Lake County, IL in our database have a UV Index reading of High. The city with the highest UV Index reading right now is Fox Lake, IL with a reading of 6.4.

Over the next 24 hours, the highest UV Index reading in Lake County, IL is expected to be 8.5 in Round Lake Beach between 1:00 PM - 2:00 PM CDT today.

Search Cities in Lake County, IL

Current UV Index in Cities in Lake County, IL

• Antioch - 6.1
• Bannockburn - 5.6
• Beach Park - 5.9
• Buffalo Grove - 5.7
• Channel Lake - 6.4
• Deer Park - 5.7
• Deerfield - 5.6
• Forest Lake - 5.7
• Fox Lake - 6.4
• Fox Lake Hills - 6.4
• Gages Lake - 5.7
• Grandwood Park - 6.1
• Grayslake - 5.7
• Green Oaks - 5.7
• Gurnee - 5.7
• Hainesville - 5.7
• Hawthorn Woods - 5.7
• Highland Park - 5.6
• Highwood - 5.6
• Indian Creek - 5.7
• Kildeer - 5.7
• Knollwood - 5.7
• Lake Barrington - 5.8
• Lake Bluff - 5.6
• Lake Catherine - 6.4
• Lake Forest - 5.6
• Lake Villa - 6.1
• Lake Zurich - 5.7
• Libertyville - 5.7
• Lincolnshire - 5.7
• Lindenhurst - 6.1
• Long Grove - 5.7
• Long Lake - 6.4
• Mettawa - 5.7
• Mundelein - 5.7
• North Barrington - 5.8
• North Chicago - 5.6
• Old Mill Creek - 6.1
• Park City - 5.7
• Port Barrington - 5.8
• Riverwoods - 5.7
• Round Lake - 5.7
• Round Lake Beach - 6.1
• Round Lake Heights - 6.1
• Round Lake Park - 5.7
• Third Lake - 5.7
• Tower Lakes - 5.8
• Venetian Village - 6.1
• Vernon Hills - 5.7
• Volo - 5.8
• Wadsworth - 6.1
• Wauconda - 5.8
• Waukegan - 5.6
• Winthrop Harbor - 5.9
• Zion - 5.9