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.

Fog/Mist

21°F

-6°C

Humidity 85%
Wind Speed SE 5 mph
Barometer 30.15 in (1023.3 mb)
Dewpoint 17°F (-8°C)
Visibility 6.00 mi
Wind Chill14°F (-10°C)
Last update 4 Jan 10:53 pm EST
Extended Forecast for

Grindstone-Rowes Run PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. Calm wind.

    Low: 21 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 46. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 46 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34. Southwest wind 3 to 5 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 54. South wind 5 to 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Slight Chance
    Rain then
    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain, mainly before 1am. Low around 39. Southwest wind 6 to 8 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Rain

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 48.

    High: 48 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain after 1pm. Partly sunny, with a high near 57. Chance of precipitation is 30%.

    High: 57 °F

    Mostly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.

    Low: 43 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 21. Calm wind.
Monday
Partly sunny, with a high near 46. Calm wind becoming southwest 5 to 8 mph in the morning.
Monday Night
Mostly cloudy, with a low around 34. Southwest wind 3 to 5 mph.
Tuesday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 54. South wind 5 to 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Rain, mainly before 1am. Low around 39. Southwest wind 6 to 8 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Mostly cloudy, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
A chance of rain after 1pm. Partly sunny, with a high near 57. Chance of precipitation is 30%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.
Friday
Rain. High near 57. Chance of precipitation is 80%.
Friday Night
Rain likely. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
Saturday
A chance of rain. Mostly cloudy, with a high near 50. Chance of precipitation is 50%.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 40%.
Sunday
A chance of snow. Mostly cloudy, with a high near 35. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Grindstone-Rowes Run PA
 40.02°N 79.81°W (Elev. 994 ft)
Last Update:
12:26 pm EST Jan 4, 2026
Forecast Valid:
11pm EST Jan 4, 2026-6pm EST Jan 11, 2026
 
Forecast Discussion
 
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Additional Resources

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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