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.

Fog/Mist

70°F

21°C

Humidity 97%
Wind Speed S 7 mph
Barometer 29.90 in (1011.9 mb)
Dewpoint 69°F (21°C)
Visibility 4.00 mi
Last update 10 Jul 2:53 am EDT
Extended Forecast for

Monessen PA

Flood Watch July 10, 10:00am until July 10, 10:00pm
Click here for hazard details and duration
Flood Watch

  • Overnight

    Overnight: Mostly cloudy, with a low around 70. South wind around 5 mph.

    Low: 70 °F

    Mostly Cloudy

  • Friday

    Friday: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 83. Southwest wind 5 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Scattered
    T-storms then
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 1am, then isolated showers between 1am and 3am. Areas of fog after 2am. Otherwise, mostly cloudy, with a low around 66. Light southwest wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    T-storms
    Likely then
    Scattered
    Showers and
    Areas Fog

  • Saturday

    Saturday: Scattered showers and thunderstorms, mainly after 2pm. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 83. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Areas Fog
    then
    Scattered
    T-storms

  • Saturday Night

    Saturday Night: Scattered showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 62. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Scattered
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 70. South wind around 5 mph.
Friday
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 83. Southwest wind 5 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms likely before 1am, then isolated showers between 1am and 3am. Areas of fog after 2am. Otherwise, mostly cloudy, with a low around 66. Light southwest wind. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Scattered showers and thunderstorms, mainly after 2pm. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 83. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Scattered showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 62. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Sunny, with a high near 86.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny and hot, with a high near 90.
Tuesday Night
Mostly clear, with a low around 69.
Wednesday
Sunny and hot, with a high near 92.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny and hot, with a high near 90.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Monessen PA
 40.16°N 79.88°W (Elev. 801 ft)
Last Update:
2:21 am EDT Jul 10, 2026
Forecast Valid:
3am EDT Jul 10, 2026-6pm EDT Jul 16, 2026
 
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