Pittsburgh Weather Forecast

    • 34
    • 42

    Rain

    • 34
    • 50

    Rain Likely

    • 34
    • 44

    Chance Rain

    • 40
    • 50

    Rain

    • 43
    • 51

    Rain

    • 41
    • 52

    Rain Likely

    • 21
    • 52

    Chance Rain

Today 22 Dec Allegheny

Mostly cloudy with a 20 percent chance of snow. Highs in the lower 40s. South Winds around 5 Mph.

Tonight 22 Dec Allegheny

A slight chance of rain this Evening, then rain after midnight. Lows in the lower 30s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain near 100 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Pittsburgh Temperature Statistics

December Temperature

Pittsburgh - Allegheny County Airport (6.8 miles)

  • Lowest 15 December, 2025

    7 °F

  • Average December

    28.2 °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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