Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Mostly Cloudy

69°F

21°C

Humidity 63%
Wind Speed S 6 mph
Barometer 30.16 in (1020.9 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 6 Oct 11:53 pm EDT
Extended Forecast for

Upper St. Clair PA

  • Overnight

    Overnight: A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am.  Mostly cloudy, with a low around 61. South wind 3 to 6 mph.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers and thunderstorms likely before noon, then showers between noon and 2pm, then showers and possibly a thunderstorm after 2pm.  High near 70. South wind 7 to 13 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 70 °F

    Showers
    Likely then
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 4am, then a chance of showers.  Low around 52. Southwest wind 9 to 11 mph becoming north after midnight. Winds could gust as high as 21 mph.  Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 52 °F

    Showers

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 64. North wind 11 to 15 mph.

    High: 64 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Clear, with a low around 39. Northeast wind 6 to 10 mph.

    Low: 39 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers and thunderstorms before 4am, then showers likely and possibly a thunderstorm between 4am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 61. South wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers and thunderstorms likely before noon, then showers between noon and 2pm, then showers and possibly a thunderstorm after 2pm. High near 70. South wind 7 to 13 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm before 4am, then a chance of showers. Low around 52. Southwest wind 9 to 11 mph becoming north after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 64. North wind 11 to 15 mph.
Wednesday Night
Clear, with a low around 39. Northeast wind 6 to 10 mph.
Thursday
Sunny, with a high near 61.
Thursday Night
Clear, with a low around 38.
Friday
Sunny, with a high near 66.
Friday Night
Mostly clear, with a low around 41.
Saturday
Sunny, with a high near 68.
Saturday Night
Mostly clear, with a low around 44.
Sunday
Sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 45.
Columbus Day
Sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
Upper St. Clair PA
 40.33°N 80.06°W (Elev. 1099 ft)
11:49 pm EDT Oct 6, 2025
12am EDT Oct 7, 2025-6pm EDT Oct 13, 2025
 
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Additional Resources

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