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

44°F

7°C

Humidity 31%
Wind Speed Calm
Barometer 30.30 in (1027.8 mb)
Dewpoint 15°F (-9°C)
Visibility 10.00 mi
Last update 24 Mar 8:53 pm EDT
Extended Forecast for

Monongahela PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 61. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 61 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 50. South wind around 7 mph.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain. Mostly cloudy, with a high near 70. Southwest wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 70 °F

    Chance Rain

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm. Low around 41. Southwest wind around 11 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    Low: 41 °F

    Rain

  • Friday

    Friday: A chance of rain before 2pm. Mostly cloudy, with a high near 49. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 49 °F

    Chance Rain

  • Friday Night

    Friday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 33. Calm wind.
Wednesday
Mostly cloudy, with a high near 61. Calm wind becoming south 5 to 8 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 50. South wind around 7 mph.
Thursday
A chance of rain. Mostly cloudy, with a high near 70. Southwest wind 9 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Thursday Night
Rain and possibly a thunderstorm. Low around 41. Southwest wind around 11 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Friday
A chance of rain before 2pm. Mostly cloudy, with a high near 49. Chance of precipitation is 40%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Mostly clear, with a low around 24.
Saturday
Sunny, with a high near 48.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Sunny, with a high near 57.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
Partly sunny, with a high near 63.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
A chance of rain. Partly sunny, with a high near 63. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Monongahela PA
 40.21°N 79.9°W (Elev. 1132 ft)
Last Update:
2:21 pm EDT Mar 24, 2026
Forecast Valid:
9pm EDT Mar 24, 2026-6pm EDT Mar 31, 2026
 
Forecast Discussion
 
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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