Sunbury Airport Weather Forecast

    • 57
    • 80

    Becoming Sunny

    • 56
    • 76

    Mostly Sunny

    • 58
    • 79

    Mostly Sunny

    • 63
    • 82

    Partly Sunny

    • 65
    • 82

    Rain Showers Likely

    • 63
    • 82

    Chance Rain Showers

Today 23 Aug Northumberland

Mostly sunny. A chance of Showers in the morning. Highs in the upper 70s. West Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 23 Aug Northumberland

Mostly clear. Lows in the upper 50s. Southwest Winds 5 to 10 Mph.

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Sunbury Airport Temperature Statistics

August Temperature

Selinsgrove Penn Valley Airport (6.2 miles)

  • Lowest 4 August, 2026

    57 °F

  • Average August

    72.9 °F

  • Highest 17 August, 2026

    89.1 °F

Climate (2021–2026)

Selinsgrove Penn Valley Airport (6.2 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    63.1 °F
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