Glassport Weather Forecast

    • 12
    • 17

    Decreasing Clouds

    • 27
    • 35

    Increasing Clouds

    • 26
    • 42

    Mostly Cloudy

    • 26
    • 52

    Rain

    • 21
    • 34

    Mostly Cloudy

    • 33
    • 45

    Chance Rain

    • 28
    • 43

    Chance Rain

Today 15 Dec Allegheny

Mostly cloudy with a 20 percent chance of snow Showers. Very cold. Near steady temperature around 18. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 15 Dec Allegheny

Mostly cloudy this Evening, then clearing. Cold. Near steady temperature around 14. Southwest Winds 5 to 10 Mph.

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Glassport Temperature Statistics

December Temperature

Pittsburgh - Allegheny County Airport (2.5 miles)

  • Lowest 9 December, 2025

    12.9 °F

  • Average December

    27.6 °F

  • Highest 10 December, 2025

    43 °F

Climate (2020–Present)

Pittsburgh - Allegheny County Airport (2.5 miles)

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  • Average Low 2020–2025

    46.1 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    63.2 °F
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