Current conditions at
Pittsburgh - Allegheny County Airport (KAGC)
Lat: 40.36°NLon: 79.92°WElev: 1237ft.
Fair
50°F
10°C
| Humidity | 66% |
| Wind Speed | Calm |
| Barometer | 30.06 in (1018.4 mb) |
| Dewpoint | 39°F (4°C) |
| Visibility | 10.00 mi |
| Last update | 15 May 8:53 am EDT |
Extended Forecast for
Castle Shannon PA
Today
High: 68 °F
Increasing
CloudsTonight
Low: 50 °F
Decreasing
CloudsSaturday
High: 80 °F
Sunny then
Chance
T-stormsSaturday Night
Low: 62 °F
Showers
Sunday
High: 81 °F
Showers then
Chance
ShowersSunday Night
Low: 65 °F
Mostly Clear
Monday
High: 89 °F
Sunny
Monday Night
Low: 68 °F
Mostly Clear
Tuesday
High: 91 °F
Hot
Detailed Forecast
Today
Increasing clouds, with a high near 68. West wind 6 to 8 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 50. Light and variable wind becoming south around 6 mph after midnight.
Saturday
A chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 80. South wind 8 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely and possibly a thunderstorm, then showers after 11pm. Low around 62. Southwest wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers, with thunderstorms also possible after 2pm. High near 81. Southwest wind around 7 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Mostly clear, with a low around 65.
Monday
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 68.
Tuesday
Mostly sunny and hot, with a high near 91.
Tuesday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Wednesday
Showers and possibly a thunderstorm. High near 82. Chance of precipitation is 80%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 58. Chance of precipitation is 80%.
Thursday
Partly sunny, with a high near 74.
Additional Forecasts and Information
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Point Forecast:
Castle Shannon PA
40.37°N 80.02°W (Elev. 1109 ft)
40.37°N 80.02°W (Elev. 1109 ft)
6:52 am EDT May 15, 2026
9am EDT May 15, 2026-6pm EDT May 21, 2026
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