Westchester County, NY: Current UV Index and Hourly Forecast

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As of 9:07 AM EDT on June 23, 2025, all 48 cities in Westchester County, NY in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Jefferson Valley-Yorktown, NY with a reading of 3.2.

Over the next 24 hours, the highest UV Index reading in Westchester County, NY is expected to be 9.4 in Peekskill between 1:00 PM - 2:00 PM EDT today.

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Current UV Index in Cities in Westchester County, NY

• Ardsley - 3.1
• Armonk - 3.2
• Bedford Hills - 3.2
• Briarcliff Manor - 3.2
• Bronxville - 3.1
• Buchanan - 3.1
• Chappaqua - 3.2
• Crompond - 3.2
• Croton-on-Hudson - 3.1
• Crugers - 3.1
• Dobbs Ferry - 3.1
• Elmsford - 3.1
• Golden's Bridge - 3.2
• Greenville - 3.1
• Harrison - 3.1
• Hartsdale - 3.1
• Hastings-on-Hudson - 3.1
• Hawthorne - 3.1
• Heritage Hills - 3.2
• Irvington - 3.1
• Jefferson Valley-Yorktown - 3.2
• Katonah - 3.2
• Lake Mohegan - 3.2
• Larchmont - 3.1
• Lincolndale - 3.2
• Millwood - 3.2
• Montrose - 3.1
• Mount Kisco - 3.2
• Mount Vernon - 3.1
• New Rochelle - 3.1
• Peekskill - 3.1
• Pelham Manor - 3.1
• Pleasantville - 3.2
• Port Chester - 3.1
• Rye Brook - 3.1
• Scarsdale - 3.1
• Scotts Corners - 3.2
• Shenorock - 3.2
• Shrub Oak - 3.2
• Sleepy Hollow - 3.1
• Tarrytown - 3.1
• Thornwood - 3.1
• Tuckahoe - 3.1
• Valhalla - 3.1
• Verplanck - 3.1
• White Plains - 3.1
• Yonkers - 3.1
• Yorktown Heights - 3.2