Northumberland County, PA: Current UV Index and Hourly Forecast

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As of 11:27 AM EST on January 2, 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 1.2.

Over the next 24 hours, the highest UV Index reading in Northumberland County, PA is expected to be 1.4 in Dalmatia between 12:00 PM - 1:00 PM EST today.

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Current UV Index in Cities in Northumberland County, PA

• Atlas - 1.2
• Dalmatia - 1.2
• Dewart - 1.1
• Elysburg - 1.2
• Fairview-Ferndale - 1.2
• Herndon - 1.2
• Kapp Heights - 1.1
• Kulpmont - 1.2
• Marion Heights - 1.2
• Marshallton - 1.2
• McEwensville - 1.1
• Milton - 1.1
• Montandon - 1.1
• Mount Carmel - 1.2
• Northumberland - 1.1
• Ranshaw - 1.2
• Riverside - 1.1
• Shamokin - 1.2
• Strong - 1.2
• Sunbury - 1.2
• Tharptown - 1.2
• Trevorton - 1.2
• Turbotville - 1.1
• Watsontown - 1.1