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

Pittsburgh International Airport (KPIT)

Lat: 40.48°NLon: 80.21°WElev: 1203ft.

Overcast

68°F

20°C

Humidity 84%
Wind Speed N 7 mph
Barometer 29.95 in (1014.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 21 Aug 4:51 am EDT
Extended Forecast for

Carnegie PA

  • Today

    Today: A slight chance of showers after 3pm. Partly sunny, with a high near 82. Northeast wind 5 to 9 mph. Chance of precipitation is 20%.

    High: 82 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 64. Northeast wind around 6 mph becoming calm in the evening.

    Low: 64 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 85. Light northeast wind.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 64. Calm wind.

    Low: 64 °F

    Clear

  • Saturday

    Saturday: A slight chance of showers after 2pm. Mostly sunny, with a high near 88. Southwest wind 3 to 8 mph. Chance of precipitation is 20%.

    High: 88 °F

    Sunny then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of showers after 3pm. Partly sunny, with a high near 82. Northeast wind 5 to 9 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 64. Northeast wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 85. Light northeast wind.
Friday Night
Clear, with a low around 64. Calm wind.
Saturday
A slight chance of showers after 2pm. Mostly sunny, with a high near 88. Southwest wind 3 to 8 mph. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Sunday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 72.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Mostly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Carnegie PA
 40.4°N 80.11°W (Elev. 997 ft)
Last Update:
4:03 am EDT Aug 21, 2025
Forecast Valid:
5am EDT Aug 21, 2025-6pm EDT Aug 27, 2025
 
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