Sunbury Airport Weather Forecast

    • 24
    • 48

    Chance Rain Showers

    • 23
    • 31

    Mostly Cloudy

    • 18
    • 34

    Chance Snow Showers

    • 14
    • 27

    Partly Sunny

    • 16
    • 28

    Mostly Cloudy

    • 18
    • 32

    Mostly Cloudy

Today 29 Dec Northumberland

Mostly cloudy with rain likely in the Morning, then partly sunny in the afternoon. Not as cool with Highs around 50. Temperature falling into the lower 30s in the afternoon. Southwest Winds 15 to 20 Mph with Gusts up to 45 Mph. Chance of rain 70 percent.

Tonight 29 Dec Northumberland

Mostly cloudy. Cooler with Lows in the mid 20s. West Winds 15 to 20 Mph with Gusts up to 50 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sunbury Airport Temperature Statistics

December Temperature

Selinsgrove Penn Valley Airport (6.2 miles)

  • Lowest 9 December, 2025

    5 °F

  • Average December

    29.1 °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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