McDonald Weather Forecast

    • 68
    • 89

    Increasing Clouds

    • 66
    • 87

    Partly Sunny

    • 49
    • 74

    Rain Showers

    • 54
    • 67

    Mostly Cloudy

    • 58
    • 70

    Rain Showers Likely

    • 62
    • 74

    Rain Showers Likely

Today 18 May Washington

Sunny. Unseasonably warm with Highs in the upper 80s. Southwest Winds 10 to 15 Mph.

Tonight 18 May Washington

Mainly clear in the Evening, then becoming mostly cloudy. Warm with Lows in the upper 60s. Southwest Winds 5 to 10 Mph.

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McDonald Temperature Statistics

May Temperature

Pittsburgh, Pittsburgh International Airport (9.3 miles)

  • Lowest 2 May, 2026

    32.6 °F

  • Average May

    53.3 °F

  • Highest 4 May, 2026

    73.7 °F

Climate (2021–Present)

Pittsburgh, Pittsburgh International Airport (9.3 miles)

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  • Average Low 2021–2026

    45 °F

  • Average 2021–2026

    54.1 °F

  • Average High 2021–2026

    63.4 °F
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