Northumberland County, PA: Current UV Index and Hourly Forecast

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As of 9:09 AM EST on February 12, 2026, all 24 cities in Northumberland County, PA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is Sunbury, PA with a reading of 0.7.

Over the next 24 hours, the highest UV Index reading in Northumberland County, PA is expected to be 2.2 in Shamokin between 12:00 PM - 1:00 PM EST today.

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Current UV Index in Cities in Northumberland County, PA

• Atlas - 0.7
• Dalmatia - 0.7
• Dewart - 0.7
• Elysburg - 0.7
• Fairview-Ferndale - 0.7
• Herndon - 0.7
• Kapp Heights - 0.7
• Kulpmont - 0.7
• Marion Heights - 0.7
• Marshallton - 0.7
• McEwensville - 0.7
• Milton - 0.7
• Montandon - 0.7
• Mount Carmel - 0.7
• Northumberland - 0.7
• Ranshaw - 0.7
• Riverside - 0.7
• Shamokin - 0.7
• Strong - 0.7
• Sunbury - 0.7
• Tharptown - 0.7
• Trevorton - 0.7
• Turbotville - 0.7
• Watsontown - 0.7