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

Hazardous Weather Conditions

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Fair

52°F

11°C

Humidity 50%
Wind Speed N 7 mph
Barometer 30.11 in (1020.4 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 16 Oct 7:53 pm EDT
Extended Forecast for

Monongahela PA

Frost Advisory October 17, 02:00am until October 17, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: Areas of frost after 4am. Otherwise, clear, with a low around 32. North wind 5 to 7 mph becoming calm in the evening.

    Low: 32 °F

    Clear then
    Areas Frost

  • Friday

    Friday: Patchy fog before 9am. Areas of frost before 9am. Otherwise, sunny, with a high near 63. Calm wind.

    High: 63 °F

    Areas Frost
    and Patchy
    Fog then
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 74. Light southeast wind becoming south 5 to 9 mph in the morning.

    High: 74 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 57. South wind around 8 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 72. Breezy. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 72 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 45. Chance of precipitation is 80%.

    Low: 45 °F

    Showers

  • Monday

    Monday: A chance of showers before 8am. Mostly sunny, with a high near 60. Chance of precipitation is 30%.

    High: 60 °F

    Chance
    Showers then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Areas of frost after 4am. Otherwise, clear, with a low around 32. North wind 5 to 7 mph becoming calm in the evening.
Friday
Patchy fog before 9am. Areas of frost before 9am. Otherwise, sunny, with a high near 63. Calm wind.
Friday Night
Mostly cloudy, with a low around 44. Calm wind.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 74. Light southeast wind becoming south 5 to 9 mph in the morning.
Saturday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 57. South wind around 8 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 72. Breezy. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 45. Chance of precipitation is 80%.
Monday
A chance of showers before 8am. Mostly sunny, with a high near 60. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 42.
Tuesday
A chance of showers after 8am. Partly sunny, with a high near 65. Chance of precipitation is 50%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 41. Chance of precipitation is 50%.
Wednesday
A chance of showers. Partly sunny, with a high near 54. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
Partly sunny, with a high near 56.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Monongahela PA
 40.21°N 79.9°W (Elev. 1132 ft)
Last Update:
7:02 pm EDT Oct 16, 2025
Forecast Valid:
8pm EDT Oct 16, 2025-6pm EDT Oct 23, 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