Hazardous Weather Conditions
Current conditions at
Pittsburgh - Allegheny County Airport (KAGC)
Lat: 40.36°NLon: 79.92°WElev: 1237ft.
Fair
68°F
20°C
| Humidity | 81% |
| Wind Speed | S 7 mph |
| Barometer | 29.96 in (1014.1 mb) |
| Dewpoint | 62°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 19 Aug 8:53 am EDT |
Extended Forecast for
Grindstone PA
Today
High: 80 °F
Increasing
CloudsTonight
Low: 63 °F
Chance
Showers and
Patchy FogThursday
High: 76 °F
Showers
Likely and
Areas FogThursday Night
Low: 58 °F
Patchy Fog
Friday
High: 79 °F
Mostly Sunny
then Slight
Chance
T-stormsFriday Night
Low: 61 °F
Partly Cloudy
Saturday
High: 79 °F
Partly Sunny
then Chance
T-stormsSaturday Night
Low: 60 °F
Showers
LikelySunday
High: 76 °F
Mostly Sunny
then Chance
T-storms
Detailed Forecast
Today
Increasing clouds, with a high near 80. West wind 5 to 8 mph.
Tonight
A chance of showers and thunderstorms. Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 63. Calm wind. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Areas of fog before 11am. Otherwise, mostly cloudy, with a high near 76. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 58. Calm wind.
Friday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 79. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 61.
Saturday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 56. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Mostly sunny, with a high near 78.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Grindstone PA
40.02°N 79.84°W (Elev. 879 ft)
40.02°N 79.84°W (Elev. 879 ft)
6:56 am EDT Aug 19, 2026
9am EDT Aug 19, 2026-6pm EDT Aug 25, 2026
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