Crystal Lake Weather Forecast

    • 26
    • 42

    Increasing Clouds

    • 28
    • 36

    Chance Snow

    • 29
    • 40

    Mostly Cloudy

    • 32
    • 42

    Mostly Cloudy

    • 35
    • 39

    Rain Showers Likely

    • 32
    • 45

    Chance Rain Showers

    • 28
    • 40

    Chance Rain Showers

Today 14 Feb Sullivan

Mostly sunny. Highs in the upper 30s. Northwest Winds around 5 Mph.

Tonight 14 Feb Sullivan

Partly cloudy this Evening, then becoming mostly cloudy. Lows in the lower 20s. Northwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Crystal Lake Temperature Statistics

February Temperature

Williamsport - Lycoming County Airport (14.3 miles)

  • Lowest 9 February, 2026

    -2.9 °F

  • Average February

    19.8 °F

  • Highest 11 February, 2026

    37.9 °F

Climate (2021–Present)

Williamsport - Lycoming County Airport (14.3 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    63.1 °F
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