Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Fog/Mist

56°F

13°C

Humidity 100%
Wind Speed Calm
Barometer 30.14 in (1020.5 mb)
Dewpoint 56°F (13°C)
Visibility 6.00 mi
Last update 21 Aug 5:53 am EDT
Extended Forecast for

Hollidaysburg PA

Dense Fog Advisory until August 21, 10:00am
Click here for hazard details and duration
...
  •  
    Dense Fog Advisory until August 21, 10:00am

    NOW until 10:00am Fri

    Dense Fog Advisory

  • Today

    High: 79 °F

    Dense Fog
    then Sunny

  • Tonight

    Tonight: Patchy fog after 10pm.  Otherwise, mostly clear, with a low around 57. Calm wind.

    Low: 57 °F

    Patchy Fog

  • Saturday

    Saturday: A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm.  Areas of fog before 10am.  Otherwise, mostly cloudy, with a high near 78. Calm wind becoming south around 6 mph in the afternoon.  Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 78 °F

    Showers
    Likely and
    Areas Fog

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a slight chance of showers after 2am.  Low around 60. Calm wind.  Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 77. West wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Today
Widespread dense fog before 11am. Otherwise, sunny, with a high near 79. Calm wind.
Tonight
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 57. Calm wind.
Saturday
A chance of showers before 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Areas of fog before 10am. Otherwise, mostly cloudy, with a high near 78. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 8pm, then showers and possibly a thunderstorm between 8pm and 2am, then a slight chance of showers after 2am. Low around 60. Calm wind. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 77. West wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Thursday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Hollidaysburg PA
 40.43°N 78.42°W (Elev. 997 ft)
6:11 am EDT Aug 21, 2026
6am EDT Aug 21, 2026-6pm EDT Aug 27, 2026
 
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Additional Resources

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