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- Pennsylvania's Severe Weather Awareness Week | April 13-17, 2026
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Hazardous Weather Conditions
Current conditions at
Pittsburgh - Allegheny County Airport (KAGC)
Lat: 40.36°NLon: 79.92°WElev: 1237ft.
Thunderstorm in Vicinity
65°F
18°C
| Humidity | 84% |
| Wind Speed | SW 6 mph |
| Barometer | 29.89 in (1011.8 mb) |
| Dewpoint | 60°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 16 Apr 10:53 pm EDT |
Extended Forecast for
Castle Shannon PA
Tonight
Low: 58 °F
Chance
ShowersFriday
High: 77 °F
Decreasing
CloudsFriday Night
Low: 57 °F
Partly Cloudy
Saturday
High: 82 °F
Slight Chance
Showers then
Showers
LikelySaturday Night
Low: 44 °F
Showers
Sunday
High: 53 °F
Showers
LikelySunday Night
Low: 33 °F
Partly Cloudy
Monday
High: 49 °F
Mostly Sunny
Monday Night
Low: 32 °F
Mostly Clear
Detailed Forecast
Tonight
A chance of showers and thunderstorms before 2am, then a slight chance of showers between 2am and 3am. Partly cloudy, with a low around 58. West wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 77. Northwest wind around 7 mph.
Friday Night
Partly cloudy, with a low around 57. Light and variable wind becoming southeast around 5 mph after midnight.
Saturday
A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 82. Southwest wind 8 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm. Low around 44. Southwest wind around 11 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Showers likely, mainly before 8am. Partly sunny, with a high near 53. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 32.
Tuesday
Sunny, with a high near 69.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 51. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
Mostly sunny, with a high near 69.
Additional Forecasts and Information
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Forecast AreaABOUT 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)
6:51 pm EDT Apr 16, 2026
11pm EDT Apr 16, 2026-6pm EDT Apr 23, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
