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Hazardous Weather Conditions

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Fog

67°F

19°C

Humidity 100%
Wind Speed Calm
Barometer 30.16 in (1021.0 mb)
Dewpoint 67°F (19°C)
Visibility 0.50 mi
Last update 15 Aug 3:53 am EDT
Extended Forecast for

Twilight PA

Dense Fog Advisory August 15, 04:43am until August 15, 09:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory August 15, 04:43am until August 15, 09:00am

    NOW until 9:00am Sat

    Dense Fog Advisory

  • Today

    High: 84 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 69. Light east wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Mostly Cloudy
    then Showers

  • Sunday

    Sunday: Showers and thunderstorms, mainly before 3pm, then showers likely and possibly a thunderstorm after 4pm. High near 82. Southwest wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

    High: 82 °F

    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 2am, then a slight chance of showers. Low around 70. West wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 70 °F

    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 81. Northwest wind 6 to 9 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Areas of fog before 9am. Otherwise, sunny, with a high near 80.

    High: 80 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Today
Patchy fog between 7am and 9am. Otherwise, mostly sunny, with a high near 84. Calm wind.
Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 69. Light east wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers and thunderstorms, mainly before 3pm, then showers likely and possibly a thunderstorm after 4pm. High near 82. Southwest wind 9 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.
Sunday Night
Showers and possibly a thunderstorm before 2am, then a slight chance of showers. Low around 70. West wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 81. Northwest wind 6 to 9 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 59.
Tuesday
Areas of fog before 9am. Otherwise, sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 59.
Wednesday
Sunny, with a high near 82.
Wednesday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
Thursday
A chance of showers. Partly sunny, with a high near 78. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Twilight PA
 40.12°N 79.89°W (Elev. 984 ft)
Last Update:
3:16 am EDT Aug 15, 2026
Forecast Valid:
4am EDT Aug 15, 2026-6pm EDT Aug 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation