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

78°F

26°C

Humidity 33%
Wind Speed Vrbl 3 mph
Barometer 30.14 in (1020.9 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 3 Aug 4:51 pm EDT
Extended Forecast for

Carnegie PA

  • Tonight

    Tonight: Mostly clear, with a low around 59. East wind around 6 mph becoming calm in the evening.

    Low: 59 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 86. Calm wind becoming east 5 to 7 mph in the afternoon.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 64. Light southeast wind.

    Low: 64 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 86. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 86 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 67. East wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of sprinkles with a slight chance of showers before 2pm, then a slight chance of showers after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 20%.

    High: 84 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of rain between 8pm and 2am. Partly cloudy, with a low around 66. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 59. East wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 86. Calm wind becoming east 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 64. Light southeast wind.
Tuesday
Mostly sunny, with a high near 86. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 67. East wind around 5 mph becoming calm in the evening.
Wednesday
A chance of sprinkles with a slight chance of showers before 2pm, then a slight chance of showers after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 65.
Thursday
A chance of rain between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of rain between 8pm and 2am. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 86.
Friday Night
Partly cloudy, with a low around 66.
Saturday
A chance of sprinkles. Mostly sunny, with a high near 88.
Saturday Night
A chance of sprinkles. Partly cloudy, with a low around 68.
Sunday
Mostly sunny and hot, with a high near 91.
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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:
4:04 pm EDT Aug 3, 2025
Forecast Valid:
5pm EDT Aug 3, 2025-6pm EDT Aug 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