Monongahela Weather Forecast

    • 64
    • 81

    Chance Rain Showers

    • 69
    • 86

    Rain Showers

    • 69
    • 86

    Rain Showers

    • 59
    • 82

    Slight Chance Thunderstorms

    • 60
    • 82

    Mostly Sunny

    • 65
    • 84

    Rain Showers Likely

    • 61
    • 80

    Chance Rain Showers

Today 14 Aug Washington

Showers likely. Highs in the upper 70s. Northeast Winds around 5 Mph. Chance of rain 70 percent.

Tonight 14 Aug Washington

Partly cloudy. Patchy fog after midnight. Lows in the mid 60s. Northeast Winds around 5 Mph.

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Monongahela Temperature Statistics

August Temperature

Pittsburgh - Allegheny County Airport (9.9 miles)

  • Lowest 4 August, 2026

    60.1 °F

  • Average August

    72.9 °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

    46.1 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    63.3 °F
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