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.

Light Rain

64°F

18°C

Humidity 81%
Wind Speed S 8 mph
Barometer 29.82 in (1009.4 mb)
Dewpoint 58°F (14°C)
Visibility 4.00 mi
Last update 5 Nov 12:53 am EST
Extended Forecast for

Monessen PA

  • Overnight

    Overnight: Rain and possibly a thunderstorm before 4am, then a chance of rain. Low around 61. Southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Rain

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 70. Southwest wind 8 to 14 mph.

    High: 70 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 48. South wind 3 to 5 mph.

    Low: 48 °F

    Increasing
    Clouds

  • Friday

    Friday: A chance of rain before 4pm, then a slight chance of rain after 5pm. Mostly cloudy, with a high near 62. West wind 5 to 10 mph. Chance of precipitation is 40%.

    High: 62 °F

    Partly Sunny
    then Chance
    Rain

  • Friday Night

    Friday Night: A chance of rain, mainly between 7pm and 1am. Mostly cloudy, with a low around 39. West wind 5 to 7 mph. Chance of precipitation is 30%.

    Low: 39 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain. Mostly cloudy, with a high near 52. Chance of precipitation is 30%.

    High: 52 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Overnight
Rain and possibly a thunderstorm before 4am, then a chance of rain. Low around 61. Southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 70. Southwest wind 8 to 14 mph.
Thursday Night
Increasing clouds, with a low around 48. South wind 3 to 5 mph.
Friday
A chance of rain before 4pm, then a slight chance of rain after 5pm. Mostly cloudy, with a high near 62. West wind 5 to 10 mph. Chance of precipitation is 40%.
Friday Night
A chance of rain, mainly between 7pm and 1am. Mostly cloudy, with a low around 39. West wind 5 to 7 mph. Chance of precipitation is 30%.
Saturday
A chance of rain. Mostly cloudy, with a high near 52. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 34.
Monday
Sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 36.
Tuesday
Sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 35.
Veterans Day
Mostly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Monessen PA
 40.14°N 79.88°W (Elev. 1086 ft)
Last Update:
12:16 am EST Nov 5, 2026
Forecast Valid:
12am EST Nov 5, 2026-6pm EST Nov 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation