Shamokin Weather Forecast

    • 58
    • 70

    Patchy Fog

    • 57
    • 82

    Becoming Sunny

    • 50
    • 81

    Mostly Sunny

    • 53
    • 76

    Mostly Sunny

    • 57
    • 75

    Mostly Cloudy

    • 59
    • 79

    Partly Sunny

    • 60
    • 82

    Partly Sunny

Today 17 Sep Northumberland

Mostly cloudy with a slight chance of Showers and Thunderstorms. Near steady temperature in the lower 70s. Northeast Winds around 5 Mph. Chance of rain 20 percent.

Tonight 17 Sep Northumberland

Mostly cloudy late this Evening, then becoming partly cloudy. Patchy fog. Lows in the upper 50s. East Winds around 5 Mph late this Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Shamokin Temperature Statistics

September Temperature

Selinsgrove Penn Valley Airport (16.2 miles)

  • Lowest 8 September, 2025

    39.9 °F

  • Average September

    63.3 °F

  • Highest 13 September, 2025

    84 °F

Climate (2020–Present)

Selinsgrove Penn Valley Airport (16.2 miles)

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  • Average Low 2020–2025

    42.4 °F

  • Average 2020–2025

    52.7 °F

  • Average High 2020–2025

    63.2 °F
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