Urban Weather Forecast

    • 12
    • 25

    Clearing Late

    • 20
    • 30

    Increasing Clouds

    • 21
    • 44

    Mostly Cloudy

    • 32
    • 48

    Rain Showers

    • 20
    • 41

    Mostly Cloudy

    • 29
    • 37

    Mostly Cloudy

    • 25
    • 43

    Mostly Cloudy

Today 15 Dec Northumberland

Mostly cloudy with a 30 percent chance of snow Showers. Highs in the mid 20s. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 15 Dec Northumberland

Mostly cloudy with light snow this Evening, then partly cloudy after midnight. Little or no snow accumulation. Lows around 10. Southwest Winds around 5 Mph. Chance of snow 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Urban Temperature Statistics

December Temperature

Selinsgrove Penn Valley Airport (10.6 miles)

  • Lowest 9 December, 2025

    5 °F

  • Average December

    27.5 °F

  • Highest 1 December, 2025

    39 °F

Climate (2020–Present)

Selinsgrove Penn Valley Airport (10.6 miles)

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  • Average Low 2020–2025

    42.4 °F

  • Average 2020–2025

    52.6 °F

  • Average High 2020–2025

    63.1 °F
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