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.

Mostly Cloudy

77°F

25°C

Humidity 74%
Wind Speed S 5 mph
Barometer 30.13 in (1019.9 mb)
Dewpoint 68°F (20°C)
Visibility 9.00 mi
Heat Index79°F (26°C)
Last update 15 Aug 8:53 pm EDT
Extended Forecast for

Fayette City PA

Flood Watch August 16, 12:00am until August 17, 08:00am
Click here for hazard details and duration
Flood Watch

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 69. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Mostly Cloudy
    then Showers

  • Sunday

    Sunday: Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then showers and thunderstorms likely after 5pm. High near 81. Southwest wind 7 to 9 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 81 °F

    Showers then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms before 2am, then a chance of showers. Low around 70. Southwest wind 5 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 70 °F

    T-storms then
    Chance
    Showers

  • Monday

    Monday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Northwest wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 8pm. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 59. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers
    Likely then
    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 79.

    High: 79 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 30%.

    High: 81 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely after 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 69. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then showers and thunderstorms likely after 5pm. High near 81. Southwest wind 7 to 9 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday Night
Showers and thunderstorms before 2am, then a chance of showers. Low around 70. Southwest wind 5 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Monday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Northwest wind 6 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers likely and possibly a thunderstorm before 8pm. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 59. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely after 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Thursday
A chance of showers before 8am, then a chance of showers after 2pm. Partly sunny, with a high near 76. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Partly cloudy, with a low around 56. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Partly sunny, with a high near 78.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fayette City PA
 40.09°N 79.83°W (Elev. 889 ft)
Last Update:
8:41 pm EDT Aug 15, 2026
Forecast Valid:
9pm EDT Aug 15, 2026-6pm EDT Aug 22, 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