Hazardous Weather Conditions
Current conditions at
Pittsburgh - Allegheny County Airport (KAGC)
Lat: 40.36°NLon: 79.92°WElev: 1237ft.
Fair
79°F
26°C
| Humidity | 77% |
| Wind Speed | SW 8 mph |
| Barometer | 30.02 in (1015.8 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 82°F (28°C) |
| Last update | 3 Sep 1:53 am EDT |
Extended Forecast for
Upper St. Clair PA
Heat Advisory September 3, 02:13am until September 3, 08:00pm
NOW until 8:00pm Thu
Heat Advisory
Overnight
Low: 72 °F
Mostly Clear
Thursday
High: 90 °F
Chance
Showers then
Chance
T-stormsThursday Night
Low: 69 °F
Chance
T-storms then
Chance
ShowersFriday
High: 85 °F
Chance
Showers then
ShowersFriday Night
Low: 67 °F
Chance
T-storms then
Chance
ShowersSaturday
High: 79 °F
Slight Chance
ShowersSaturday Night
Low: 59 °F
Partly Cloudy
Sunday
High: 78 °F
Sunny
Detailed Forecast
Overnight
Mostly clear, with a low around 72. Southwest wind around 6 mph.
Thursday
A chance of showers and thunderstorms, mainly after 3pm. Partly sunny and hot, with a high near 90. West wind 6 to 9 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. East wind 5 to 7 mph becoming west in the evening. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 85. Southwest wind 5 to 9 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A slight chance of showers before 2pm. Partly sunny, with a high near 79. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
Sunny, with a high near 78.
Sunday Night
Mostly clear, with a low around 59.
Labor Day
Mostly sunny, with a high near 80.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Mostly sunny, with a high near 81.
Tuesday Night
Mostly cloudy, with a low around 64.
Wednesday
A chance of showers. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
Additional Forecasts and Information
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Point Forecast:
Upper St. Clair PA
40.33°N 80.09°W (Elev. 1178 ft)
40.33°N 80.09°W (Elev. 1178 ft)
2:01 am EDT Sep 3, 2026
2am EDT Sep 3, 2026-6pm EDT Sep 9, 2026
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