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.

Partly Cloudy

77°F

25°C

Humidity 35%
Wind Speed S 16 G 24 mph
Barometer 29.91 in (1012.7 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 4 Nov 2:53 pm EST
Extended Forecast for

Monongahela PA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 81. South wind 6 to 14 mph.

    High: 81 °F

    Partly Sunny

  • Tonight

    Tonight: Rain and possibly a thunderstorm before 4am, then rain likely. Low around 61. South wind 7 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 61 °F

    Rain

  • Thursday

    Thursday: A chance of rain, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 71. Southwest wind 7 to 14 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 71 °F

    Chance Rain
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 47. West wind around 6 mph becoming calm.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of rain. Mostly cloudy, with a high near 64. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.

    High: 64 °F

    Slight Chance
    Rain

  • Friday Night

    Friday Night: A slight chance of rain before 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 20%.

    Low: 38 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Saturday Night

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

    Low: 34 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 81. South wind 6 to 14 mph.
Tonight
Rain and possibly a thunderstorm before 4am, then rain likely. Low around 61. South wind 7 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
A chance of rain, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 71. Southwest wind 7 to 14 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Partly cloudy, with a low around 47. West wind around 6 mph becoming calm.
Friday
A slight chance of rain. Mostly cloudy, with a high near 64. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
Friday Night
A slight chance of rain before 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 20%.
Saturday
Mostly cloudy, with a high near 53.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
Mostly sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 32.
Monday
Mostly sunny, with a high near 59.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Monongahela PA
 40.21°N 79.93°W (Elev. 801 ft)
Last Update:
3:21 pm EST Nov 4, 2026
Forecast Valid:
3pm EST Nov 4, 2026-6pm EST Nov 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation