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.

Overcast

29°F

-2°C

Humidity 75%
Wind Speed NW 10 mph
Barometer 30.05 in (1019.5 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 17 Jan 8:53 pm EST
Extended Forecast for

Monessen PA

  • Tonight

    Tonight: A chance of snow, mainly between 11pm and 4am. Mostly cloudy, with a low around 22. West wind 3 to 8 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 22 °F

    Chance Snow

  • Sunday

    Sunday: Partly sunny, with a high near 26. West wind 8 to 10 mph.

    High: 26 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A slight chance of snow showers after 1am. Mostly cloudy, with a low around 16. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 16 °F

    Partly Cloudy
    then Slight
    Chance Snow
    Showers

  • M.L.King Day

    M.L.King Day: A chance of snow showers before 1pm. Mostly cloudy, with a high near 28. West wind 11 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 28 °F

    Chance Snow
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 6. West wind 9 to 13 mph, with gusts as high as 24 mph.

    Low: 6 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 19.

    High: 19 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain and snow showers before 1am, then a chance of snow showers. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.

    Low: 23 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
A chance of snow, mainly between 11pm and 4am. Mostly cloudy, with a low around 22. West wind 3 to 8 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of less than a half inch possible.
Sunday
Partly sunny, with a high near 26. West wind 8 to 10 mph.
Sunday Night
A slight chance of snow showers after 1am. Mostly cloudy, with a low around 16. Southwest wind 5 to 10 mph. Chance of precipitation is 20%.
M.L.King Day
A chance of snow showers before 1pm. Mostly cloudy, with a high near 28. West wind 11 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Monday Night
Mostly cloudy, with a low around 6. West wind 9 to 13 mph, with gusts as high as 24 mph.
Tuesday
Mostly sunny, with a high near 19.
Tuesday Night
Mostly clear, with a low around 9.
Wednesday
Partly sunny, with a high near 40.
Wednesday Night
A chance of rain and snow showers before 1am, then a chance of snow showers. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.
Thursday
A chance of snow showers before 1pm. Partly sunny, with a high near 32. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 12.
Friday
Partly sunny, with a high near 34.
Friday Night
A chance of snow showers and freezing rain. Mostly cloudy, with a low around 20. Chance of precipitation is 30%.
Saturday
A chance of snow showers. Mostly cloudy, with a high near 32. Chance of precipitation is 40%.
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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:
8:37 pm EST Jan 17, 2026
Forecast Valid:
9pm EST Jan 17, 2026-6pm EST Jan 24, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation