Monongahela Weather Forecast

    • 53
    • 77

    Chance Rain Showers

    • 48
    • 71

    Partly Sunny

    • 45
    • 71

    Partly Sunny

    • 51
    • 69

    Rain Showers

    • 48
    • 63

    Rain Showers

    • 46
    • 61

    Rain Showers

Today 17 May Washington

Considerable cloudiness with a chance of Showers and Thunderstorms Early, then partly cloudy this morning. Partly cloudy with a slight chance of Showers this afternoon. Highs in the mid 70s. Southwest Winds 15 to 20 Mph. Gusts up to 35 Mph. Chance of rain 40 percent.

Tonight 17 May Washington

Mostly cloudy with a slight chance of Showers in the Evening, then mainly clear after midnight. Lows in the lower 50s. West Winds 15 to 20 Mph with Gusts up to 30 Mph, Diminishing to around 10 Mph with Gusts up to 20 Mph after midnight. Chance of rain 20 percent.

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Monongahela Temperature Statistics

May Temperature

Pittsburgh - Allegheny County Airport (9.9 miles)

  • Lowest 10 May, 2025

    42.7 °F

  • Average May

    62.5 °F

  • Highest 1 May, 2025

    81.6 °F

Climate (2020–Present)

Pittsburgh - Allegheny County Airport (9.9 miles)

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  • Average Low 2020–2025

    46.2 °F

  • Average 2020–2025

    54.7 °F

  • Average High 2020–2025

    63.4 °F
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