Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Overcast

36°F

2°C

Humidity 67%
Wind Speed S 9 mph
Barometer 30.07 in (1019.8 mb)
Dewpoint 26°F (-3°C)
Visibility 9.00 mi
Wind Chill29°F (-2°C)
Last update 30 Nov 3:53 am EST
Extended Forecast for

Castle Shannon PA

  • Overnight

    Overnight: A chance of snow.  Cloudy, with a low around 31. South wind around 11 mph, with gusts as high as 23 mph.  Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 31 °F

    Chance Snow

  • Sunday

    Sunday: A chance of snow before 9am, then a chance of rain between 9am and 1pm.  Mostly cloudy, with a high near 44. Breezy, with a west wind 14 to 22 mph, with gusts as high as 34 mph.  Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 44 °F

    Breezy.
    Chance
    Rain/Snow
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 27. West wind 9 to 15 mph, with gusts as high as 25 mph.

    Low: 27 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 35. Northwest wind around 6 mph becoming calm  in the morning.

    High: 35 °F

    Partly Sunny

  • Monday Night

    Monday Night: Snow after 1am.  Low around 28. East wind around 6 mph.  Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 28 °F

    Mostly Cloudy
    then Snow

  • Tuesday

    Tuesday: Snow, mainly before 1pm.  High near 35. Chance of precipitation is 80%.

    High: 35 °F

    Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26.

    Low: 26 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of snow. Cloudy, with a low around 31. South wind around 11 mph, with gusts as high as 23 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.
Sunday
A chance of snow before 9am, then a chance of rain between 9am and 1pm. Mostly cloudy, with a high near 44. Breezy, with a west wind 14 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Sunday Night
Mostly cloudy, with a low around 27. West wind 9 to 15 mph, with gusts as high as 25 mph.
Monday
Partly sunny, with a high near 35. Northwest wind around 6 mph becoming calm in the morning.
Monday Night
Snow after 1am. Low around 28. East wind around 6 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Tuesday
Snow, mainly before 1pm. High near 35. Chance of precipitation is 80%.
Tuesday Night
Mostly cloudy, with a low around 22.
Wednesday
Partly sunny, with a high near 34.
Wednesday Night
Mostly cloudy, with a low around 26.
Thursday
A chance of snow before 1pm. Mostly cloudy, with a high near 34. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 14.
Friday
A chance of snow. Mostly cloudy, with a high near 30. Chance of precipitation is 40%.
Friday Night
Snow likely. Mostly cloudy, with a low around 24. Chance of precipitation is 60%.
Saturday
A chance of rain and snow. Mostly cloudy, with a high near 35. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Castle Shannon PA
 40.37°N 80.02°W (Elev. 1109 ft)
1:16 am EST Nov 30, 2025
4am EST Nov 30, 2025-6pm EST Dec 6, 2025
 
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Additional Resources

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