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

68°F

20°C

Humidity 87%
Wind Speed Vrbl 3 mph
Barometer 30.05 in (1017.0 mb)
Dewpoint 64°F (18°C)
Visibility 9.00 mi
Last update 11 Sep 8:53 am EDT
Extended Forecast for

Clairton PA

  • Today

    Today: Mostly sunny, with a high near 81. Light northeast wind.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Mostly Cloudy

  • Saturday

    Saturday: Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 81. South wind 3 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 66. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Showers
    Likely

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 82. West wind 3 to 8 mph. Chance of precipitation is 20%.

    High: 82 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 20%.

    Low: 62 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 81. Light northeast wind.
Tonight
Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening.
Saturday
Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 81. South wind 3 to 8 mph. 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. Mostly cloudy, with a low around 66. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
A slight chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 82. West wind 3 to 8 mph. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
Mostly sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
A chance of showers. Mostly sunny, with a high near 85. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Thursday
Showers likely. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
Clairton PA
 40.29°N 79.89°W (Elev. 866 ft)
Last Update:
5:41 am EDT Sep 11, 2026
Forecast Valid:
9am EDT Sep 11, 2026-6pm EDT Sep 17, 2026
 
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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