News Headlines
- Weather Observers Needed-Learn More About CoCoRaHS
- The Growing Season has started in portions of southeast OH and northern WV
- Check Out Our Graphical Hazardous Weather Outlook
- Observe down trees, hail, of flooding? We would love to know!
- Interested in weather? Check out our Basic SKYWARN Video Series on YouTube!
Current conditions at
Pittsburgh - Allegheny County Airport (KAGC)
Lat: 40.36°NLon: 79.92°WElev: 1237ft.
A Few Clouds
31°F
-1°C
| Humidity | 49% |
| Wind Speed | NW 10 G 21 mph |
| Barometer | 30.37 in (1029.8 mb) |
| Dewpoint | 14°F (-10°C) |
| Visibility | 10.00 mi |
| Wind Chill | 22°F (-6°C) |
| Last update | 7 Apr 9:53 am EDT |
Extended Forecast for
Castle Shannon PA
Today

High: 43 °F
Mostly Sunny
Tonight

Low: 26 °F
Mostly Clear
Wednesday

High: 60 °F
Sunny
Wednesday Night

Low: 38 °F
Partly Cloudy
Thursday

High: 70 °F
Sunny
Thursday Night

Low: 46 °F
Mostly Clear
Friday

High: 73 °F
Mostly Sunny
Friday Night

Low: 49 °F
Chance
ShowersSaturday

High: 67 °F
Mostly Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 43. Northwest wind 11 to 14 mph.
Tonight
Mostly clear, with a low around 26. North wind around 6 mph becoming east after midnight.
Wednesday
Sunny, with a high near 60. Southeast wind 6 to 9 mph.
Wednesday Night
Partly cloudy, with a low around 38. South wind around 9 mph.
Thursday
Sunny, with a high near 70. South wind 8 to 11 mph.
Thursday Night
Mostly clear, with a low around 46.
Friday
Mostly sunny, with a high near 73.
Friday Night
A chance of showers before 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 67.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Partly sunny, with a high near 80.
Sunday Night
Mostly cloudy, with a low around 61.
Monday
Partly sunny, with a high near 80.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Castle Shannon PA
40.37°N 80.02°W (Elev. 1109 ft)
40.37°N 80.02°W (Elev. 1109 ft)
6:31 am EDT Apr 7, 2026
10am EDT Apr 7, 2026-6pm EDT Apr 13, 2026


