Castanea Weather Forecast

    • 49
    • 73

    Becoming Sunny

    • 55
    • 78

    Partly Sunny

    • 59
    • 82

    Rain Showers

    • 60
    • 86

    Chance Thunderstorms

    • 56
    • 80

    Mostly Sunny

    • 56
    • 78

    Mostly Sunny

Today 15 Jun Southern Clinton

Mostly sunny. Highs in the lower 70s. Northwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 15 Jun Southern Clinton

Mostly clear. Lows in the upper 40s. West Winds 5 to 10 Mph.

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  • Temperature Real-Time

Castanea Temperature Statistics

June Temperature

Williamsport - Lycoming County Airport (27.3 miles)

  • Lowest 1 June, 2026

    45.6 °F

  • Average June

    70.5 °F

  • Highest 11 June, 2026

    92.6 °F

Climate (2021–Present)

Williamsport - Lycoming County Airport (27.3 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    63.3 °F
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