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

70°F

21°C

Humidity 73%
Wind Speed SE 6 mph
Barometer 30.11 in (1019.4 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 18 Aug 11:53 pm EDT
Extended Forecast for

Monongahela PA

  • Overnight

    Overnight: Mostly clear, with a low around 62. Light southeast wind.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. South wind 3 to 7 mph.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain before 1am, then a chance of rain and thunderstorms between 1am and 2am, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 67. Southeast wind 5 to 9 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Partly Cloudy
    then Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 84. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 65. Northeast wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers, mainly after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 30%.

    High: 81 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 8pm. Mostly clear, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 62. Light southeast wind.
Tuesday
Sunny, with a high near 87. South wind 3 to 7 mph.
Tuesday Night
A chance of rain before 1am, then a chance of rain and thunderstorms between 1am and 2am, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 67. Southeast wind 5 to 9 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 84. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 65. Northeast wind 3 to 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, mainly after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 30%.
Thursday Night
A chance of showers before 8pm. Mostly clear, with a low around 60. Chance of precipitation is 30%.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 63.
Saturday
A chance of showers after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 40%.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Monongahela PA
 40.18°N 79.9°W (Elev. 869 ft)
Last Update:
12:06 am EDT Aug 19, 2025
Forecast Valid:
12am EDT Aug 19, 2025-6pm EDT Aug 25, 2025
 
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