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

74°F

23°C

Humidity 45%
Wind Speed NA
Barometer 30.06 in (1017.8 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 24 Jun 5:53 pm EDT
Extended Forecast for

Monessen PA

  • Tonight

    Tonight: Mostly clear, with a low around 57. West wind around 5 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 83. Southwest wind 5 to 11 mph.

    High: 83 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 2am, then a chance of showers. Low around 62. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Showers then
    Chance
    T-storms

  • Friday

    Friday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 79. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 79 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 64. Light southeast wind. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 64 °F

    Showers

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 8am. High near 80. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 80 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely before 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely then
    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 85.

    High: 85 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 57. West wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 83. Southwest wind 5 to 11 mph.
Thursday Night
Showers and thunderstorms before 2am, then a chance of showers. Low around 62. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 79. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and possibly a thunderstorm. Low around 64. Light southeast wind. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Showers, with thunderstorms also possible after 8am. High near 80. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers likely before 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Sunday
Partly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 65.
Monday
Mostly sunny and hot, with a high near 90.
Monday Night
Partly cloudy, with a low around 69.
Tuesday
Mostly sunny and hot, with a high near 94.
Tuesday Night
Partly cloudy, with a low around 71.
Wednesday
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 94. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Monessen PA
 40.16°N 79.88°W (Elev. 801 ft)
Last Update:
6:21 pm EDT Jun 24, 2026
Forecast Valid:
6pm EDT Jun 24, 2026-6pm EDT Jul 1, 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