Sunbury Airport Weather Forecast

    • 25
    • 31

    Snow/Sleet

    • 25
    • 36

    Slight Chance Rain Showers

    • 34
    • 38

    Rain Showers

    • 23
    • 47

    Slight Chance Rain Showers

    • 22
    • 30

    Mostly Cloudy

    • 21
    • 34

    Mostly Cloudy

Today 26 Dec Northumberland

Cloudy. Snow Showers and sleet with freezing rain likely in the afternoon. Snow and sleet accumulation around an inch. Ice accumulation around a trace. Much Colder with Highs in the upper 20s. Northeast Winds around 5 Mph, becoming southeast with Gusts up to 20 Mph in the afternoon. Chance of precipitation 90 percent.

Tonight 26 Dec Northumberland

Partly cloudy. Cooler with Lows around 20. North Winds around 5 Mph.

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Sunbury Airport Temperature Statistics

December Temperature

Selinsgrove Penn Valley Airport (6.2 miles)

  • Lowest 9 December, 2025

    5 °F

  • Average December

    28.4 °F

  • Highest 19 December, 2025

    57 °F

Climate (2020–Present)

Selinsgrove Penn Valley Airport (6.2 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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