National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Fair

42°F

6°C

Humidity 73%
Wind Speed N 7 mph
Barometer 30.18 in (1022.8 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 9 Jan 10:53 pm EST
Extended Forecast for

Grindstone PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 38. Light northeast wind.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: Showers. High near 54. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 54 °F

    Showers

  • Saturday Night

    Saturday Night: Rain showers before 1am, then a slight chance of rain and snow showers between 1am and 4am, then a slight chance of snow showers after 4am. Low around 29. West wind 8 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Showers then
    Rain/Snow

  • Sunday

    Sunday: Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 34. West wind 11 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Snow Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of snow showers before 1am. Mostly cloudy, with a low around 24. West wind 9 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 24 °F

    Chance Snow
    Showers

  • Monday

    Monday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of showers after 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.

    Low: 36 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 38. Light northeast wind.
Saturday
Showers. High near 54. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Rain showers before 1am, then a slight chance of rain and snow showers between 1am and 4am, then a slight chance of snow showers after 4am. Low around 29. West wind 8 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Sunday
Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 34. West wind 11 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
A chance of snow showers before 1am. Mostly cloudy, with a low around 24. West wind 9 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Monday
Partly sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 27.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
A chance of showers after 1am. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.
Wednesday
Showers likely, mainly after 1pm. Cloudy, with a high near 43. Chance of precipitation is 60%.
Wednesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 23. Chance of precipitation is 50%.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 31. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 17.
Friday
A chance of snow showers. Mostly cloudy, with a high near 33. Chance of precipitation is 30%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grindstone PA
 40.02°N 79.84°W (Elev. 879 ft)
Last Update:
7:05 pm EST Jan 9, 2026
Forecast Valid:
11pm EST Jan 9, 2026-6pm EST Jan 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation