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National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
7-Day Forecast 40.37°N 80.05°W (Text-Only)
NWS Forecast for: Mount Lebanon PA
Issued by: National Weather Service Pittsburgh, PA
Last Update: 8:06 pm EDT Jun 29, 2026		Print

  • Tonight

    Tonight: Mostly clear, with a low around 71. Light south wind.

    Low: 71 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 92. Southwest wind 5 to 9 mph.

    High: 92 °F

    Hot

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 75. Southwest wind around 7 mph.

    Low: 75 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 103. West wind 6 to 9 mph.

    High: 95 °F

    Hot

  • Wednesday
    Night

    Wednesday Night: Clear, with a low around 75. Southwest wind 3 to 6 mph.

    Low: 75 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny and hot, with a high near 95.

    High: 95 °F

    Hot

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 30%.

    Low: 74 °F

    Chance
    T-storms



    • Tonight: Mostly clear, with a low around 71. Light south wind.

    Tuesday: Mostly sunny and hot, with a high near 92. Southwest wind 5 to 9 mph.

    Tuesday Night: Partly cloudy, with a low around 75. Southwest wind around 7 mph.

    Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 103. West wind 6 to 9 mph.

    Wednesday Night: Clear, with a low around 75. Southwest wind 3 to 6 mph.

    Thursday: Sunny and hot, with a high near 96.

    Thursday Night: Mostly clear, with a low around 76.

    Friday: Mostly sunny and hot, with a high near 95.

    Friday Night: A chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 74. Chance of precipitation is 30%.

    Independence Day: A chance of showers and thunderstorms after 2pm. Partly sunny and hot, with a high near 91. Chance of precipitation is 50%.

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.

    Sunday: A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 40%.

    Monday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 86. Chance of precipitation is 60%.


    Mount Lebanon PA
     40.37°N 80.05°W (Elev. 1102 ft)

    Visit your local NWS office at: https://www.weather.gov/pbz/