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

34°F

1°C

Humidity 76%
Wind Speed S 8 mph
Barometer 29.89 in (1013.2 mb)
Dewpoint 27°F (-3°C)
Visibility 8.00 mi
Wind Chill27°F (-3°C)
Last update 7 Nov 4:53 am EST
Extended Forecast for

Upper St. Clair PA

  • Today

    Today: Showers, mainly after 2pm. High near 63. Breezy, with a southwest wind 9 to 14 mph increasing to 17 to 22 mph in the morning. Winds could gust as high as 33 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 63 °F

    Breezy.
    Mostly Cloudy
    then Showers

  • Tonight

    Tonight: Showers likely, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 44. West wind 6 to 14 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F

    Showers
    Likely then
    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 59. West wind 5 to 9 mph.

    High: 59 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of rain after 1am. Mostly cloudy, with a low around 44. Southeast wind 3 to 5 mph. Chance of precipitation is 40%.

    Low: 44 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: Rain. High near 56. South wind 6 to 15 mph becoming west in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Rain

  • Sunday Night

    Sunday Night: A chance of rain before 1am, then rain and snow likely. Mostly cloudy, with a low around 31. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Monday

    Monday: Snow showers likely. Mostly cloudy, with a high near 38. Chance of precipitation is 60%.

    High: 38 °F

    Snow Showers
    Likely

  • Monday Night

    Monday Night: Snow showers likely. Mostly cloudy, with a low around 24. Chance of precipitation is 60%.

    Low: 24 °F

    Snow Showers
    Likely

  • Veterans Day

    Veterans Day: A chance of snow before 1pm. Partly sunny, with a high near 39. Breezy. Chance of precipitation is 30%.

    High: 39 °F

    Chance Snow
    and Breezy

Detailed Forecast

Today
Showers, mainly after 2pm. High near 63. Breezy, with a southwest wind 9 to 14 mph increasing to 17 to 22 mph in the morning. Winds could gust as high as 33 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Showers likely, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 44. West wind 6 to 14 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 59. West wind 5 to 9 mph.
Saturday Night
A chance of rain after 1am. Mostly cloudy, with a low around 44. Southeast wind 3 to 5 mph. Chance of precipitation is 40%.
Sunday
Rain. High near 56. South wind 6 to 15 mph becoming west in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
A chance of rain before 1am, then rain and snow likely. Mostly cloudy, with a low around 31. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Snow showers likely. Mostly cloudy, with a high near 38. Chance of precipitation is 60%.
Monday Night
Snow showers likely. Mostly cloudy, with a low around 24. Chance of precipitation is 60%.
Veterans Day
A chance of snow before 1pm. Partly sunny, with a high near 39. Breezy. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Partly sunny, with a high near 49. Breezy.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Upper St. Clair PA
 40.33°N 80.09°W (Elev. 1178 ft)
Last Update:
2:43 am EST Nov 7, 2025
Forecast Valid:
5am EST Nov 7, 2025-6pm EST Nov 13, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation