Butler County, PA: Current UV Index and Hourly Forecast

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As of 3:40 PM EDT on April 1, 2025, all 32 cities in Butler County, PA in our database have a UV Index reading of Moderate. The city with the highest UV Index reading right now is Butler, PA with a reading of 4.4.

Over the next 24 hours, the highest UV Index reading in Butler County, PA is expected to be 4.4 in Butler between 3:00 PM - 4:00 PM EDT today.

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Current UV Index in Cities in Butler County, PA

• Bruin - 4.3
• Butler - 4.4
• Callery - 4.4
• Cherry Valley - 4.2
• Chicora - 4.3
• East Butler - 4.3
• Eau Claire - 4.2
• Evans City - 4.4
• Fairview - 4.3
• Harmony - 4.4
• Harrisville - 4.2
• Homeacre-Lyndora - 4.4
• Karns City - 4.3
• Lake Arthur Estates - 4.3
• Mars - 4.4
• Meadowood - 4.4
• Meridian - 4.4
• Nixon - 4.4
• Oak Hills - 4.4
• Petrolia - 4.3
• Portersville - 4.3
• Prospect - 4.3
• Saxonburg - 4.3
• Seven Fields - 4.4
• Shanor-Northvue - 4.3
• Slippery Rock - 4.3
• Slippery Rock University - 4.3
• Unionville - 4.3
• Valencia - 4.4
• West Liberty - 4.3
• West Sunbury - 4.3
• Zelienople - 4.4