Monongahela Weather Forecast

    • 65
    • 86

    Rain Showers

    • 57
    • 81

    Partly Sunny

    • 65
    • 83

    Partly Sunny

    • 65
    • 85

    Rain Showers

    • 56
    • 79

    Chance Rain Showers

    • 56
    • 79

    Mostly Sunny

Today 18 Jul Washington

Showers with Thunderstorms likely. Near steady temperature in the lower 80s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

Tonight 18 Jul Washington

Showers with Thunderstorms likely in the Evening, then a chance of Showers and Thunderstorms after midnight. Humid with Lows in the mid 60s. West Winds 10 to 15 Mph, becoming northwest 5 to 10 Mph after midnight. Chance of rain near 100 percent.

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Monongahela Temperature Statistics

July Temperature

Pittsburgh - Allegheny County Airport (9.9 miles)

  • Lowest 12 July, 2026

    66.9 °F

  • Average July

    77.9 °F

  • Highest 2 July, 2026

    93 °F

Climate (2021–2026)

Pittsburgh - Allegheny County Airport (9.9 miles)

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  • Average Low 2021–2026

    46 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    63.4 °F
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