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.

Fair

55°F

13°C

Humidity 83%
Wind Speed Calm
Barometer 30.23 in (1024.1 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 4 Oct 1:51 am EDT
Extended Forecast for

Carnegie PA

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, mostly clear, with a low around 52. Calm wind.

    Low: 52 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, sunny, with a high near 82. Light south wind.

    High: 82 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 54. Calm wind.

    Low: 54 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 83. Calm wind becoming south around 5 mph in the afternoon.

    High: 83 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 55. Light south wind.

    Low: 55 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: A chance of showers after 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.

    Low: 61 °F

    Partly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.

    High: 76 °F

    Chance
    Showers then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers. Low around 54. Chance of precipitation is 90%.

    Low: 54 °F

    Showers

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, mostly clear, with a low around 52. Calm wind.
Saturday
Patchy fog before 9am. Otherwise, sunny, with a high near 82. Light south wind.
Saturday Night
Clear, with a low around 54. Calm wind.
Sunday
Sunny, with a high near 83. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Clear, with a low around 55. Light south wind.
Monday
Sunny, with a high near 82.
Monday Night
A chance of showers after 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Tuesday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.
Tuesday Night
Showers. Low around 54. Chance of precipitation is 90%.
Wednesday
Showers likely before 8am. Mostly sunny, with a high near 65. Chance of precipitation is 60%.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Carnegie PA
 40.4°N 80.08°W (Elev. 899 ft)
Last Update:
1:03 am EDT Oct 4, 2025
Forecast Valid:
2am EDT Oct 4, 2025-6pm EDT Oct 10, 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