Pittsburgh International Airport Weather Forecast

    • 21
    • 28

    Slight Chance Snow Showers

    • 23
    • 32

    Chance Snow

    • 12
    • 31

    Snow

    • 13
    • 19

    Chance Snow

    • 14
    • 21

    Mostly Cloudy

    • 22
    • 30

    Mostly Cloudy

Today 11 Dec Allegheny

Mostly cloudy. A chance of snow Showers late this Morning, then a slight chance of snow Showers this afternoon. Little or no snow accumulation. Near steady temperature in the upper 20s. West Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of snow 30 percent.

Tonight 11 Dec Allegheny

Mostly cloudy. Lows in the lower 20s. West Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

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Pittsburgh International Airport Temperature Statistics

December Temperature

Pittsburgh, Pittsburgh International Airport (1.9 miles)

  • Lowest 9 December, 2025

    10 °F

  • Average December

    27.3 °F

  • Highest 9 December, 2025

    37 °F

Climate (2020–Present)

Pittsburgh, Pittsburgh International Airport (1.9 miles)

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  • Average Low 2020–2025

    45 °F

  • Average 2020–2025

    54 °F

  • Average High 2020–2025

    63.1 °F
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