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.

Partly Cloudy

79°F

26°C

Humidity 54%
Wind Speed NE 5 mph
Barometer 30.14 in (1020.1 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 15 Aug 8:53 pm EDT
Extended Forecast for

Plum PA

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, clear, with a low around 65. Calm wind.

    Low: 65 °F

    Clear then
    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, sunny and hot, with a high near 91. Calm wind.

    High: 91 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Light and variable wind becoming west 5 to 8 mph in the morning. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66. Northwest wind 3 to 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.

    High: 84 °F

    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely after 8pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

    Low: 66 °F

    Heavy Rain

Detailed Forecast

Tonight
Patchy fog after 3am. Otherwise, clear, with a low around 65. Calm wind.
Saturday
Patchy fog before 9am. Otherwise, sunny and hot, with a high near 91. Calm wind.
Saturday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 67. Calm wind.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. Light and variable wind becoming west 5 to 8 mph in the morning. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 66. Northwest wind 3 to 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Mostly sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Tuesday Night
A chance of showers and thunderstorms, then showers likely after 8pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Wednesday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 50%.
Wednesday Night
A chance of thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
Mostly clear, with a low around 58.
Friday
Sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Plum PA
 40.5°N 79.77°W (Elev. 1099 ft)
Last Update:
7:05 pm EDT Aug 15, 2025
Forecast Valid:
9pm EDT Aug 15, 2025-6pm EDT Aug 22, 2025
 
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