McDonald Weather Forecast

    • 28
    • 43

    Mostly Cloudy

    • 18
    • 33

    Mostly Sunny

    • 31
    • 37

    Rain Likely

    • 30
    • 47

    Chance Rain

    • 37
    • 43

    Rain Likely

    • 48
    • 56

    Rain Likely

Today 20 Dec Washington

Partly cloudy this Morning, then becoming partly sunny. Highs in the mid 40s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 20 Dec Washington

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the upper 20s. Southwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

McDonald Temperature Statistics

December Temperature

Pittsburgh, Pittsburgh International Airport (9.3 miles)

  • Lowest 15 December, 2025

    6.1 °F

  • Average December

    27.8 °F

  • Highest 18 December, 2025

    57 °F

Climate (2020–Present)

Pittsburgh, Pittsburgh International Airport (9.3 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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