Butler County, PA: Current UV Index and Hourly Forecast

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As of 7:36 PM EDT on June 11, 2026, all 32 cities in Butler County, PA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Butler, PA with a reading of 0.7.

Over the next 24 hours, the highest UV Index reading in Butler County, PA is expected to be 9.6 in Eau Claire between 2:00 PM - 3:00 PM EDT tomorrow.

Search Cities in Butler County, PA

Current UV Index in Cities in Butler County, PA

• Bruin - 0.7
• Butler - 0.7
• Callery - 0.7
• Cherry Valley - 0.7
• Chicora - 0.7
• East Butler - 0.7
• Eau Claire - 0.7
• Evans City - 0.7
• Fairview - 0.7
• Harmony - 0.7
• Harrisville - 0.7
• Homeacre-Lyndora - 0.7
• Karns City - 0.7
• Lake Arthur Estates - 0.7
• Mars - 0.7
• Meadowood - 0.7
• Meridian - 0.7
• Nixon - 0.7
• Oak Hills - 0.7
• Petrolia - 0.7
• Portersville - 0.7
• Prospect - 0.7
• Saxonburg - 0.7
• Seven Fields - 0.7
• Shanor-Northvue - 0.7
• Slippery Rock - 0.7
• Slippery Rock University - 0.7
• Unionville - 0.7
• Valencia - 0.7
• West Liberty - 0.7
• West Sunbury - 0.7
• Zelienople - 0.7