Shamokin Weather Forecast

    • 61
    • 84

    Rain Showers Likely

    • 53
    • 78

    Mostly Sunny

    • 58
    • 78

    Mostly Sunny

    • 64
    • 83

    Partly Sunny

    • 70
    • 89

    Mostly Sunny

    • 71
    • 93

    Chance Thunderstorms

Today 20 Jul Northumberland

Showers likely with a chance of Thunderstorms. Some Thunderstorms may produce gusty Winds and small hail. Warmer. Near steady temperature in the lower 80s. West Winds 5 to 10 Mph. Chance of rain 60 percent.

Tonight 20 Jul Northumberland

Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Some Thunderstorms may produce gusty Winds and small hail in the evening. Humid with Lows in the lower 60s. Northwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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Shamokin Temperature Statistics

July Temperature

Selinsgrove Penn Valley Airport (16.2 miles)

  • Lowest 4 July, 2025

    57.7 °F

  • Average July

    76.6 °F

  • Highest 17 July, 2025

    90.6 °F

Climate (2020–Present)

Selinsgrove Penn Valley Airport (16.2 miles)

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  • Average Low 2020–2025

    42.5 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    63.2 °F
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