Sumner County, TN: Current UV Index and Hourly Forecast

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As of 2:44 AM CDT on September 19, 2025, all 16 cities in Sumner County, TN in our database have a UV Index reading of 0, indicating no radiation from the sun.

Over the next 24 hours, the highest UV Index reading in Sumner County, TN is expected to be 6.7 in Hendersonville between 1:00 PM - 2:00 PM CDT today.

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Current UV Index in Cities in Sumner County, TN

• Bethpage - 0
• Bransford - 0
• Castalian Springs - 0
• Cottontown - 0
• Fairfield - 0
• Gallatin - 0
• Goodlettsville - 0
• Graball - 0
• Hendersonville - 0
• Millersville - 0
• Mitchellville - 0
• New Deal - 0
• Portland - 0
• Shackle Island - 0
• Walnut Grove - 0
• Westmoreland - 0