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.

Partly Cloudy

71°F

22°C

Humidity 79%
Wind Speed Vrbl 3 mph
Barometer 30.15 in (1020.5 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 30 Aug 11:53 pm EDT
Extended Forecast for

Monongahela PA

  • Overnight

    Overnight: A chance of showers, mainly before 1am. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 68 °F

    Chance
    Showers

  • Monday

    Monday: A slight chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 86. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 20%.

    High: 86 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 71. Calm wind becoming south around 5 mph after midnight.

    Low: 71 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 90. West wind 6 to 11 mph.

    High: 90 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 72. Southwest wind 3 to 6 mph.

    Low: 72 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 92.

    High: 92 °F

    Hot

  • Wednesday Night

    Wednesday Night: A chance of showers, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 50%.

    Low: 72 °F

    Chance
    Showers then
    Chance
    T-storms

  • Thursday

    Thursday: A chance of thunderstorms before 8am, then showers likely and possibly a thunderstorm after 2pm. Partly sunny and hot, with a high near 90. Chance of precipitation is 60%.

    High: 90 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely then
    Chance
    T-storms

Detailed Forecast

Overnight
A chance of showers, mainly before 1am. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A slight chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 86. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 20%.
Monday Night
Mostly cloudy, with a low around 71. Calm wind becoming south around 5 mph after midnight.
Tuesday
Mostly sunny and hot, with a high near 90. West wind 6 to 11 mph.
Tuesday Night
Partly cloudy, with a low around 72. Southwest wind 3 to 6 mph.
Wednesday
Mostly sunny and hot, with a high near 92.
Wednesday Night
A chance of showers, with thunderstorms also possible after 2am. Mostly cloudy, with a low around 72. Chance of precipitation is 50%.
Thursday
A chance of thunderstorms before 8am, then showers likely and possibly a thunderstorm after 2pm. Partly sunny and hot, with a high near 90. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Friday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Friday Night
A chance of thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Monongahela PA
 40.18°N 79.9°W (Elev. 869 ft)
Last Update:
7:56 pm EDT Aug 30, 2026
Forecast Valid:
12am EDT Aug 31, 2026-6pm EDT Sep 6, 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