Jefferson County, OH: Current UV Index and Hourly Forecast

• USA →
• Ohio →
• Jefferson County

As of 4:21 PM EDT on August 14, 2026, all 20 cities in Jefferson County, OH in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Steubenville, OH with a reading of 4.1.

Over the next 24 hours, the highest UV Index reading in Jefferson County, OH is expected to be 7.1 in Steubenville between 2:00 PM - 3:00 PM EDT tomorrow.

Search Cities in Jefferson County, OH

Current UV Index in Cities in Jefferson County, OH

• Adena - 4.1
• Amsterdam - 3.7
• Bergholz - 3.7
• Bloomingdale - 4.1
• Brilliant - 4.1
• Connorville - 4.1
• East Springfield - 3.5
• Empire - 3.5
• Irondale - 3.5
• Mingo Junction - 4.1
• Mount Pleasant - 4.1
• New Alexandria - 4.1
• Pottery Addition - 4.1
• Rayland - 4.1
• Richmond - 3.5
• Steubenville - 4.1
• Stratton - 3.5
• Tiltonsville - 4.1
• Toronto - 4.1
• Wintersville - 3.5