Williamsport Weather Forecast

    • 26
    • 48

    Breezy

    • 37
    • 47

    Rain

    • 32
    • 54

    Rain

    • 28
    • 43

    Mostly Cloudy

    • 39
    • 49

    Mostly Cloudy

    • 33
    • 55

    Mostly Cloudy

Today 29 Jan Eastern Grant

Mostly sunny. Isolated rain and snow Showers this afternoon. Very windy with Highs in the mid 40s. West Winds 30 to 35 Mph, Diminishing to 20 to 30 Mph this afternoon. Gusts up to 60 Mph. Chance of precipitation 20 percent.

Tonight 29 Jan Eastern Grant

Partly cloudy with isolated snow Showers in the Evening, then mostly clear after midnight. Lows in the mid 20s. West Winds 15 to 20 Mph with Gusts up to 45 Mph. Chance of snow 20 percent.

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Williamsport Temperature Statistics

January Temperature

Petersburg, Grant County Airport (16.2 miles)

  • Lowest 22 January, 2025

    -4.4 °F

  • Average January

    26.5 °F

  • Highest 18 January, 2025

    50.9 °F

Climate (2020–Present)

Petersburg, Grant County Airport (16.2 miles)

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  • Average Low 2020–2025

    44.1 °F

  • Average 2020–2025

    55.2 °F

  • Average High 2020–2025

    67.3 °F
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