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

72°F

22°C

Humidity 84%
Wind Speed N 3 mph
Barometer 29.92 in (1012.8 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 17 Aug 8:53 pm EDT
Extended Forecast for

Plum PA

  • Tonight

    Tonight: Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 62. North wind 3 to 5 mph.

    Low: 62 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 80. Calm wind becoming northwest 5 to 8 mph in the afternoon.

    High: 80 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 60. Light and variable wind.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Southwest wind 6 to 11 mph. Chance of precipitation is 30%.

    High: 80 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 78. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 57. Chance of precipitation is 30%.

    Low: 57 °F

    Chance
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 62. North wind 3 to 5 mph.
Tuesday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 80. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 60. Light and variable wind.
Wednesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Southwest wind 6 to 11 mph. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 78. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 57. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 61.
Saturday
A chance of showers after 2pm. Mostly sunny, with a high near 80. Chance of precipitation is 40%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 76. Chance of precipitation is 50%.
Sunday Night
A chance of thunderstorms. Partly cloudy, with a low around 58. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 75.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Plum PA
 40.5°N 79.74°W (Elev. 1079 ft)
Last Update:
6:46 pm EDT Aug 17, 2026
Forecast Valid:
9pm EDT Aug 17, 2026-6pm EDT Aug 24, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation