Sunbury Airport Weather Forecast

    • 49
    • 64

    Rain Showers Likely

    • 47
    • 67

    Mostly Cloudy

    • 46
    • 66

    Partly Sunny

    • 48
    • 68

    Partly Sunny

    • 49
    • 67

    Partly Sunny

    • 49
    • 71

    Partly Sunny

Today 22 Sep Northumberland

Showers, mainly in the morning. Highs in the lower 60s. East Winds around 5 Mph. Gusts up to 20 Mph in the morning. Chance of rain near 100 percent.

Tonight 22 Sep Northumberland

Cloudy. Lows in the upper 40s. Northeast Winds around 5 Mph. Gusts up to 20 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sunbury Airport Temperature Statistics

September Temperature

Selinsgrove Penn Valley Airport (6.2 miles)

  • Lowest 15 September, 2026

    46 °F

  • Average September

    69 °F

  • Highest 1 September, 2026

    90 °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

    52.7 °F

  • Average High 2021–2026

    63.1 °F
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