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

10°F

-12°C

Humidity 53%
Wind Speed NW 10 G 21 mph
Barometer 30.26 in (1028.0 mb)
Dewpoint -4°F (-20°C)
Visibility 10.00 mi
Wind Chill-4°F (-20°C)
Last update 7 Feb 7:53 pm EST
Extended Forecast for

Castle Shannon PA

Cold Weather Advisory February 7, 08:06pm until February 8, 10:00am
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory February 7, 08:06pm until February 8, 10:00am

    NOW until 10:00am Sun

    Cold Weather Advisory

  • Tonight

    Low: 0 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 18. Wind chill values as low as -10. Northwest wind around 7 mph.

    High: 18 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -2. Light and variable wind.

    Low: -2 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 28. Wind chill values as low as -2. Calm wind.

    High: 28 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 18. Calm wind becoming south around 5 mph after midnight.

    Low: 18 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 36.

    High: 36 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 0. Wind chill values as low as -12. West wind 6 to 10 mph, with gusts as high as 21 mph.
Sunday
Mostly sunny, with a high near 18. Wind chill values as low as -10. Northwest wind around 7 mph.
Sunday Night
Mostly clear, with a low around -2. Light and variable wind.
Monday
Mostly sunny, with a high near 28. Wind chill values as low as -2. Calm wind.
Monday Night
Mostly cloudy, with a low around 18. Calm wind becoming south around 5 mph after midnight.
Tuesday
Partly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Mostly cloudy, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 21.
Thursday
Mostly cloudy, with a high near 33.
Thursday Night
Mostly cloudy, with a low around 18.
Friday
Partly sunny, with a high near 31.
Friday Night
Mostly cloudy, with a low around 17.
Saturday
Mostly cloudy, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Castle Shannon PA
 40.37°N 80.02°W (Elev. 1109 ft)
Last Update:
12:23 pm EST Feb 7, 2026
Forecast Valid:
8pm EST Feb 7, 2026-6pm EST Feb 14, 2026
 
Forecast Discussion
 
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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