Hartford County, CT: Current UV Index and Hourly Forecast

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As of 12:06 PM EDT on March 19, 2026, all 22 cities in Hartford County, CT in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Hartford, CT with a reading of 3.6.

Over the next 24 hours, the highest UV Index reading in Hartford County, CT is expected to be 4 in Plantsville between 1:00 PM - 2:00 PM EDT today.

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Current UV Index in Cities in Hartford County, CT

• Blue Hills - 3.6
• Bristol - 3.6
• Broad Brook - 3.4
• Canton Valley - 3.6
• Collinsville - 3.6
• Glastonbury Center - 3.3
• Hartford - 3.6
• Hazardville - 3.4
• Kensington - 3.6
• New Britain - 3.6
• North Granby - 3.4
• Plantsville - 3.6
• Salmon Brook - 3.4
• Sherwood Manor - 3.4
• Simsbury Center - 3.4
• Southwood Acres - 3.4
• Suffield Depot - 3.4
• Tariffville - 3.4
• Terramuggus - 3.3
• Thompsonville - 3.4
• Weatogue - 3.6
• West Simsbury - 3.4