Hazardous Weather Conditions
Current conditions at
Pittsburgh - Allegheny County Airport (KAGC)
Lat: 40.36°NLon: 79.92°WElev: 1237ft.
Fair
63°F
17°C
| Humidity | 65% |
| Wind Speed | S 10 mph |
| Barometer | 30.02 in (1016.6 mb) |
| Dewpoint | 51°F (11°C) |
| Visibility | 10.00 mi |
| Last update | 7 Mar 5:53 am EST |
Extended Forecast for
Upper St. Clair PA
Today
High: 77 °F
Mostly Sunny
then Showers
and BreezyTonight
Low: 49 °F
Showers
Sunday
High: 60 °F
Decreasing
CloudsSunday Night
Low: 43 °F
Mostly Clear
Monday
High: 68 °F
Sunny
Monday Night
Low: 53 °F
Mostly Clear
Tuesday
High: 72 °F
Partly Sunny
then Chance
RainTuesday Night
Low: 60 °F
Chance Rain
then Rain
LikelyWednesday
High: 72 °F
Rain and
Breezy
Detailed Forecast
Today
A slight chance of showers before 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 77. Breezy, with a southwest wind 10 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 3am, then a chance of showers. Low around 49. Southwest wind 13 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Mostly cloudy, then gradually becoming sunny, with a high near 60. West wind 8 to 13 mph.
Sunday Night
Mostly clear, with a low around 43. South wind around 8 mph.
Monday
Sunny, with a high near 68. Southwest wind 8 to 15 mph.
Monday Night
Mostly clear, with a low around 53.
Tuesday
A chance of rain after 1pm. Partly sunny, with a high near 72. Chance of precipitation is 30%.
Tuesday Night
Rain likely, mainly after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 70%.
Wednesday
Rain. High near 72. Breezy. Chance of precipitation is 80%.
Wednesday Night
Rain likely before 1am, then a chance of rain and snow. Cloudy, with a low around 34. Chance of precipitation is 70%.
Thursday
Mostly cloudy, with a high near 43. Breezy.
Thursday Night
Mostly cloudy, with a low around 28.
Friday
A chance of rain and snow. Mostly cloudy, with a high near 52. Chance of precipitation is 40%.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Upper St. Clair PA
40.33°N 80.06°W (Elev. 1099 ft)
40.33°N 80.06°W (Elev. 1099 ft)
5:36 am EST Mar 7, 2026
6am EST Mar 7, 2026-6pm EDT Mar 13, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
