Pittsburgh Weather Forecast

    • 29
    • 48

    Slight Chance Rain

    • 37
    • 44

    Rain

    • 36
    • 45

    Chance Rain

    • 29
    • 57

    Rain

    • 20
    • 39

    Chance Snow

    • 22
    • 29

    Mostly Cloudy

Today 25 Dec Allegheny

Considerable cloudiness with a chance of rain Showers this Morning, then partly sunny this afternoon. Highs in the upper 40s. Temperatures falling into the lower 40s this afternoon. Northwest Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 25 Dec Allegheny

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 20s. Northeast Winds 5 to 10 Mph.

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Pittsburgh Temperature Statistics

December Temperature

Pittsburgh - Allegheny County Airport (6.8 miles)

  • Lowest 15 December, 2025

    7 °F

  • Average December

    28.5 °F

  • Highest 18 December, 2025

    57.9 °F

Climate (2020–Present)

Pittsburgh - Allegheny County Airport (6.8 miles)

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  • Average Low 2020–2025

    46 °F

  • Average 2020–2025

    54.6 °F

  • Average High 2020–2025

    63.3 °F
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