Washington County, MD: Current UV Index and Hourly Forecast

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As of 11:41 AM EDT on April 20, 2026, all 61 cities in Washington County, MD in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Halfway, MD with a reading of 4.2.

Over the next 24 hours, the highest UV Index reading in Washington County, MD is expected to be 6 in Mount Aetna between 1:00 PM - 2:00 PM EDT today.

Search Cities in Washington County, MD

Current UV Index in Cities in Washington County, MD

• Antietam - 4.2
• Bagtown - 4.2
• Bakersville - 4.2
• Beaver Creek - 4.2
• Big Pool - 4.1
• Big Spring - 4.1
• Boonsboro - 4.2
• Breathedsville - 4.2
• Brownsville - 4.2
• Cavetown - 4.2
• Cearfoss - 4.1
• Charlton - 4.1
• Chewsville - 4.1
• Clear Spring - 4.1
• Dargan - 4.2
• Downsville - 4.2
• Eakles Mill - 4.2
• Edgemont - 4.2
• Ernstville - 4.1
• Fairplay - 4.2
• Fairview - 4.1
• Fort Ritchie - 4.2
• Fountainhead-Orchard Hills - 4.1
• Funkstown - 4.2
• Gapland - 4.2
• Garretts Mill - 4.2
• Greensburg - 4.2
• Hagerstown - 4.1
• Halfway - 4.2
• Hancock - 4.1
• Highfield-Cascade - 4.2
• Indian Springs - 4.1
• Jugtown - 4.2
• Keedysville - 4.2
• Kemps Mill - 4.1
• Leitersburg - 4.2
• Mapleville - 4.2
• Maugansville - 4.1
• Mercersville - 4.2
• Middleburg - 4.1
• Mount Aetna - 4.2
• Mount Briar - 4.2
• Mount Lena - 4.2
• Paramount-Long Meadow - 4.1
• Pecktonville - 4.1
• Pinesburg - 4.1
• Pondsville - 4.2
• Reid - 4.1
• Ringgold - 4.2
• Robinwood - 4.1
• Rohrersville - 4.2
• San Mar - 4.2
• Sandy Hook - 4.2
• Sharpsburg - 4.2
• Smithsburg - 4.2
• St. James - 4.2
• Tilghmanton - 4.2
• Trego-Rohrersville Station - 4.2
• Williamsport - 4.2
• Wilson-Conococheague - 4.1
• Yarrowsburg - 4.2