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

60°F

16°C

Humidity 75%
Wind Speed NW 3 mph
Barometer 29.83 in (1009.8 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 19 Jun 4:53 am EDT
Extended Forecast for

Monongahela PA

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 76. Light west wind increasing to 9 to 14 mph in the morning.

    High: 76 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 55. West wind 5 to 9 mph.

    Low: 55 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76. West wind 6 to 13 mph.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 57. Southwest wind 3 to 7 mph.

    Low: 57 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 79. West wind 3 to 7 mph.

    High: 79 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 62. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Chance
    Showers then
    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm before 8am, then showers between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 77. Chance of precipitation is 90%.

    High: 77 °F

    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.

    Low: 57 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Juneteenth
Mostly sunny, with a high near 76. Light west wind increasing to 9 to 14 mph in the morning.
Tonight
Mostly clear, with a low around 55. West wind 5 to 9 mph.
Saturday
Sunny, with a high near 76. West wind 6 to 13 mph.
Saturday Night
Partly cloudy, with a low around 57. Southwest wind 3 to 7 mph.
Sunday
Mostly sunny, with a high near 79. West wind 3 to 7 mph.
Sunday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 62. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Showers and possibly a thunderstorm before 8am, then showers between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 77. Chance of precipitation is 90%.
Monday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Mostly sunny, with a high near 78.
Wednesday Night
Partly cloudy, with a low around 58.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 79. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Monongahela PA
 40.21°N 79.9°W (Elev. 1132 ft)
Last Update:
2:21 am EDT Jun 19, 2026
Forecast Valid:
5am EDT Jun 19, 2026-6pm EDT Jun 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation