Butler County, PA: Current UV Index and Hourly Forecast

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As of 4:13 AM EST on February 1, 2026, all 32 cities in Butler County, PA 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 Butler County, PA is expected to be 2.2 in Lake Arthur Estates between 12:00 PM - 1:00 PM EST today.

Search Cities in Butler County, PA

Current UV Index in Cities in Butler County, PA

• Bruin - 0
• Butler - 0
• Callery - 0
• Cherry Valley - 0
• Chicora - 0
• East Butler - 0
• Eau Claire - 0
• Evans City - 0
• Fairview - 0
• Harmony - 0
• Harrisville - 0
• Homeacre-Lyndora - 0
• Karns City - 0
• Lake Arthur Estates - 0
• Mars - 0
• Meadowood - 0
• Meridian - 0
• Nixon - 0
• Oak Hills - 0
• Petrolia - 0
• Portersville - 0
• Prospect - 0
• Saxonburg - 0
• Seven Fields - 0
• Shanor-Northvue - 0
• Slippery Rock - 0
• Slippery Rock University - 0
• Unionville - 0
• Valencia - 0
• West Liberty - 0
• West Sunbury - 0
• Zelienople - 0