National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Fair

59°F

15°C

Humidity 90%
Wind Speed NW 6 mph
Barometer 29.96 in (1014.2 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 30 Jul 6:53 am EDT
Extended Forecast for

Mount Lebanon PA

  • Today

    Today: Sunny, with a high near 81. North wind 6 to 10 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 59. Northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 59 °F

    Clear

  • Friday

    Friday: Increasing clouds, with a high near 85. Calm wind.

    High: 85 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 65. Light southeast wind.

    Low: 65 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 84. Calm wind becoming south around 6 mph in the afternoon.

    High: 84 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 67. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 67 °F

    Showers
    Likely

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.

    High: 80 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 81. North wind 6 to 10 mph.
Tonight
Clear, with a low around 59. Northwest wind 5 to 8 mph becoming calm after midnight.
Friday
Increasing clouds, with a high near 85. Calm wind.
Friday Night
Mostly cloudy, with a low around 65. Light southeast wind.
Saturday
Mostly cloudy, with a high near 84. Calm wind becoming south around 6 mph in the afternoon.
Saturday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 67. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Sunday Night
A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Lebanon PA
 40.37°N 80.05°W (Elev. 1102 ft)
Last Update:
2:21 am EDT Jul 30, 2026
Forecast Valid:
7am EDT Jul 30, 2026-6pm EDT Aug 5, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation