Northumberland County, PA: Current UV Index and Hourly Forecast

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As of 7:51 AM EDT on August 12, 2025, 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 0.2.

Over the next 24 hours, the highest UV Index reading in Northumberland County, PA is expected to be 8.4 in Sunbury between 1:00 PM - 2:00 PM EDT today.

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Current UV Index in Cities in Northumberland County, PA

• Atlas - 0.2
• Dalmatia - 0.2
• Dewart - 0.2
• Elysburg - 0.2
• Fairview-Ferndale - 0.2
• Herndon - 0.2
• Kapp Heights - 0.2
• Kulpmont - 0.2
• Marion Heights - 0.2
• Marshallton - 0.2
• McEwensville - 0.2
• Milton - 0.2
• Montandon - 0.2
• Mount Carmel - 0.2
• Northumberland - 0.2
• Ranshaw - 0.2
• Riverside - 0.2
• Shamokin - 0.2
• Strong - 0.2
• Sunbury - 0.2
• Tharptown - 0.2
• Trevorton - 0.2
• Turbotville - 0.2
• Watsontown - 0.2