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

Hazardous Weather Conditions

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Fair

7°F

-14°C

Humidity 60%
Wind Speed N 5 mph
Barometer 30.23 in (1027.1 mb)
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Wind Chill-2°F (-19°C)
Last update 30 Jan 9:53 pm EST
Extended Forecast for

Castle Shannon PA

Cold Weather Advisory January 30, 10:44pm until January 31, 11:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory January 30, 10:44pm until January 31, 11:00am

    NOW until 11:00am Sat

    Cold Weather Advisory

  • Tonight

    Low: -9 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny and cold, with a high near 14. Wind chill values as low as -9. Calm wind becoming northwest 5 to 8 mph in the afternoon.

    High: 14 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 0. Wind chill values as low as -11. Northwest wind around 7 mph.

    Low: 0 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 19. Wind chill values as low as -12. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 19 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 3. West wind around 7 mph.

    Low: 3 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 24.

    High: 24 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 30.

    High: 30 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around -9. Light northwest wind.
Saturday
Mostly sunny and cold, with a high near 14. Wind chill values as low as -9. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 0. Wind chill values as low as -11. Northwest wind around 7 mph.
Sunday
Mostly sunny, with a high near 19. Wind chill values as low as -12. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 3. West wind around 7 mph.
Monday
Partly sunny, with a high near 24.
Monday Night
Mostly cloudy, with a low around 16.
Tuesday
Mostly cloudy, with a high near 30.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 16. Chance of precipitation is 40%.
Wednesday
A chance of snow. Mostly cloudy, with a high near 27. Chance of precipitation is 40%.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 12. Chance of precipitation is 30%.
Thursday
Mostly cloudy, with a high near 25.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 11. Chance of precipitation is 30%.
Friday
Snow likely. Mostly cloudy, with a high near 31. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Castle Shannon PA
 40.37°N 80.02°W (Elev. 1109 ft)
Last Update:
10:38 pm EST Jan 30, 2026
Forecast Valid:
10pm EST Jan 30, 2026-6pm EST Feb 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation