Crystal Lake Weather Forecast

    • 5
    • 25

    Partly Sunny

    • 8
    • 22

    Increasing Clouds

    • 2
    • 22

    Snow Likely

    • -2
    • 9

    Blustery

    • 2
    • 12

    Partly Sunny

    • 13
    • 23

    Mostly Cloudy

    • 15
    • 29

    Mostly Cloudy

Today 4 Feb Sullivan

Sunny. Highs in the mid 20s. North Winds around 5 Mph.

Tonight 4 Feb Sullivan

Partly cloudy this Evening, then becoming mostly cloudy. Colder with Lows around 5 above. North Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Crystal Lake Temperature Statistics

February Temperature

Williamsport - Lycoming County Airport (14.3 miles)

  • Lowest 1 February, 2026

    6.1 °F

  • Average February

    16.3 °F

  • Highest 2 February, 2026

    30 °F

Climate (2021–Present)

Williamsport - Lycoming County Airport (14.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    63.1 °F
Get WillyWeather+ to remove ads