Northumberland County, PA: Current UV Index and Hourly Forecast

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As of 3:10 PM EDT on September 21, 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 Dalmatia, PA with a reading of 1.9.

Over the next 24 hours, the highest UV Index reading in Northumberland County, PA is expected to be 6 in Shamokin between 1:00 PM - 2:00 PM EDT tomorrow.

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Current UV Index in Cities in Northumberland County, PA

• Atlas - 1.8
• Dalmatia - 1.9
• Dewart - 0.9
• Elysburg - 1.8
• Fairview-Ferndale - 1.8
• Herndon - 1.1
• Kapp Heights - 0.9
• Kulpmont - 1.8
• Marion Heights - 1.8
• Marshallton - 1.8
• McEwensville - 0.9
• Milton - 0.9
• Montandon - 0.9
• Mount Carmel - 1.8
• Northumberland - 0.9
• Ranshaw - 1.8
• Riverside - 0.9
• Shamokin - 1.8
• Strong - 1.8
• Sunbury - 1.1
• Tharptown - 1.8
• Trevorton - 1.1
• Turbotville - 0.9
• Watsontown - 0.9