Monongahela Weather Forecast

    • 68
    • 87

    Mostly Cloudy

    • 71
    • 89

    Mostly Cloudy

    • 71
    • 91

    Partly Sunny

    • 72
    • 92

    Partly Sunny

    • 68
    • 89

    Rain Showers Likely

    • 64
    • 84

    Chance Rain Showers

Today 30 Aug Washington

Partly cloudy. Humid with Highs in the mid 80s. Southwest Winds 5 to 10 Mph, becoming west in the afternoon.

Tonight 30 Aug Washington

Mostly cloudy. Humid with Lows in the upper 60s. West Winds around 5 Mph, becoming south after midnight.

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Monongahela Temperature Statistics

August Temperature

Pittsburgh - Allegheny County Airport (9.9 miles)

  • Lowest 24 August, 2026

    55.9 °F

  • Average August

    71.4 °F

  • Highest 4 August, 2026

    86 °F

Climate (2021–2026)

Pittsburgh - Allegheny County Airport (9.9 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    63.3 °F
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