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

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Fair

61°F

16°C

Humidity 93%
Wind Speed S 8 mph
Barometer 30.03 in (1016.9 mb)
Dewpoint 59°F (15°C)
Visibility 9.00 mi
Last update 17 May 12:53 am EDT
Extended Forecast for

Clairton PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 60. South wind 3 to 5 mph.

    Low: 60 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Southwest wind 5 to 7 mph. Chance of precipitation is 20%.

    High: 83 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62. Light southeast wind.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 92. Southwest wind 5 to 10 mph.

    High: 92 °F

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 67. South wind 3 to 6 mph.

    Low: 67 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 20%.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Partly cloudy, with a low around 70. Chance of precipitation is 40%.

    Low: 70 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 2pm. High near 84. Chance of precipitation is 90%.

    High: 84 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.

    Low: 53 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 60. South wind 3 to 5 mph.
Sunday
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Southwest wind 5 to 7 mph. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 62. Light southeast wind.
Monday
Sunny and hot, with a high near 92. Southwest wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 67. South wind 3 to 6 mph.
Tuesday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 20%.
Tuesday Night
A chance of showers after 2am. Partly cloudy, with a low around 70. Chance of precipitation is 40%.
Wednesday
Showers, with thunderstorms also possible after 2pm. High near 84. Chance of precipitation is 90%.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Thursday
Partly sunny, with a high near 69.
Thursday Night
Mostly cloudy, with a low around 51.
Friday
A chance of showers. Mostly cloudy, with a high near 71. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 73. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Clairton PA
 40.29°N 79.89°W (Elev. 866 ft)
Last Update:
12:21 am EDT May 17, 2026
Forecast Valid:
12am EDT May 17, 2026-6pm EDT May 23, 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