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.

Overcast

42°F

6°C

Humidity 85%
Wind Speed N 8 mph
Barometer 29.63 in (1004.5 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 12 Nov 8:53 pm EST
Extended Forecast for

Monessen PA

  • Tonight

    Tonight: A chance of showers, mainly before 11pm. Cloudy, with a low around 35. North wind 8 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 47. North wind 7 to 10 mph.

    High: 47 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 29. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of snow showers before 10am, then a chance of rain showers. Mostly cloudy, with a high near 46. West wind 6 to 14 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 46 °F

    Slight Chance
    Rain/Snow
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of rain before 10pm, then a slight chance of rain and snow. Mostly cloudy, with a low around 31. West wind 6 to 10 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Slight Chance
    Rain/Snow

  • Sunday

    Sunday: A slight chance of rain before 1pm. Mostly cloudy, with a high near 49. Chance of precipitation is 20%.

    High: 49 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 48.

    High: 48 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers, mainly before 11pm. Cloudy, with a low around 35. North wind 8 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly cloudy, with a high near 47. North wind 7 to 10 mph.
Friday Night
Mostly cloudy, with a low around 29. Northwest wind 5 to 7 mph becoming calm in the evening.
Saturday
A slight chance of snow showers before 10am, then a chance of rain showers. Mostly cloudy, with a high near 46. West wind 6 to 14 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Saturday Night
A slight chance of rain before 10pm, then a slight chance of rain and snow. Mostly cloudy, with a low around 31. West wind 6 to 10 mph. Chance of precipitation is 20%.
Sunday
A slight chance of rain before 1pm. Mostly cloudy, with a high near 49. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 33.
Monday
Mostly cloudy, with a high near 48.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Clear, with a low around 27.
Wednesday
Sunny, with a high near 55.
Wednesday Night
Clear, with a low around 28.
Thursday
Mostly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Monessen PA
 40.16°N 79.88°W (Elev. 801 ft)
Last Update:
9:06 pm EST Nov 12, 2026
Forecast Valid:
9pm EST Nov 12, 2026-6pm EST Nov 19, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation