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.

Partly Cloudy

55°F

13°C

Humidity 49%
Wind Speed Calm
Barometer 30.00 in (1017.1 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 17 Oct 7:51 pm EDT
Extended Forecast for

Carnegie PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 77. South wind 5 to 10 mph.

    High: 77 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: A chance of showers after 2am. Partly cloudy, with a low around 61. South wind 7 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 61 °F

    Partly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 76. Breezy, with a south wind 14 to 22 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Breezy.
    Showers
    Likely then
    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm. Low around 46. West wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Showers

  • Monday

    Monday: Showers likely, mainly before 8am. Mostly sunny, with a high near 62. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 62 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of showers after 8am. Partly sunny, with a high near 62. Chance of precipitation is 50%.

    High: 62 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 50%.

    Low: 43 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 48. Calm wind.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 77. South wind 5 to 10 mph.
Saturday Night
A chance of showers after 2am. Partly cloudy, with a low around 61. South wind 7 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 76. Breezy, with a south wind 14 to 22 mph, with gusts as high as 40 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and possibly a thunderstorm. Low around 46. West wind 13 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Showers likely, mainly before 8am. Mostly sunny, with a high near 62. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly clear, with a low around 45.
Tuesday
A chance of showers after 8am. Partly sunny, with a high near 62. Chance of precipitation is 50%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 50%.
Wednesday
A chance of showers. Partly sunny, with a high near 55. Chance of precipitation is 40%.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
Partly sunny, with a high near 59.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 58. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Carnegie PA
 40.4°N 80.08°W (Elev. 899 ft)
Last Update:
7:00 pm EDT Oct 17, 2025
Forecast Valid:
8pm EDT Oct 17, 2025-6pm EDT Oct 24, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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