Sunbury Airport Weather Forecast

    • 24
    • 42

    Areas Freezing Fog

    • 42
    • 45

    Rain

    • 24
    • 48

    Chance Rain

    • 32
    • 38

    Mostly Cloudy

    • 23
    • 41

    Partly Sunny

    • 24
    • 34

    Mostly Cloudy

    • 30
    • 40

    Slight Chance Rain

Today 17 Dec Northumberland

Partly sunny and not as cool. Near steady temperature around 40. West Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 17 Dec Northumberland

Partly cloudy this Evening, then becoming mostly cloudy. Areas of freezing fog after midnight. Lows in the lower 20s. West Winds around 5 Mph with Gusts up to 20 Mph this Evening, becoming light and variable.

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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

    26.6 °F

  • Highest 1 December, 2025

    39 °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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