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

Hazardous Weather Conditions

Current conditions at

Pittsburgh International Airport (KPIT)

Lat: 40.48°NLon: 80.21°WElev: 1203ft.

Mostly Cloudy

63°F

17°C

Humidity 70%
Wind Speed SE 5 mph
Barometer 30.02 in (1016.5 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 25 Jun 5:51 am EDT
Extended Forecast for

Carnegie PA

  • Today

    Today: A chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 83. South wind 5 to 13 mph becoming southwest in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Mostly Sunny
    then Chance
    Showers

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 1am. Mostly cloudy, with a low around 63. Southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers and thunderstorms before 3pm, then a chance of showers after 4pm. Mostly cloudy, with a high near 81. Calm wind becoming west around 6 mph in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 65. Light and variable wind. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Showers

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 11am. High near 80. Southeast wind around 6 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 64 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny and hot, with a high near 90.

    High: 90 °F

    Hot

Detailed Forecast

Today
A chance of showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 83. South wind 5 to 13 mph becoming southwest in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 1am. Mostly cloudy, with a low around 63. Southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A slight chance of showers and thunderstorms before 3pm, then a chance of showers after 4pm. Mostly cloudy, with a high near 81. Calm wind becoming west around 6 mph in the morning. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8pm. Low around 65. Light and variable wind. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers, with thunderstorms also possible after 11am. High near 80. Southeast wind around 6 mph becoming northwest in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Partly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 67.
Monday
Mostly sunny and hot, with a high near 90.
Monday Night
Partly cloudy, with a low around 72.
Tuesday
Mostly sunny and hot, with a high near 95.
Tuesday Night
Partly cloudy, with a low around 75.
Wednesday
Mostly sunny and hot, with a high near 96.
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ABOUT THIS FORECAST

 
Point Forecast:
Carnegie PA
 40.4°N 80.08°W (Elev. 899 ft)
Last Update:
2:21 am EDT Jun 25, 2026
Forecast Valid:
6am EDT Jun 25, 2026-6pm EDT Jul 1, 2026
 
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