National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Fair

61°F

16°C

Humidity 81%
Wind Speed Calm
Barometer 30.19 in (1021.8 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 28 Aug 10:53 pm EDT
Extended Forecast for

Shirleysburg PA

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly clear, with a low around 55. Calm wind.

    Low: 55 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, sunny, with a high near 84. Calm wind.

    High: 84 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 4am. Otherwise, increasing clouds, with a low around 63. Calm wind.

    Low: 63 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 10am. Otherwise, partly sunny, with a high near 89. Light south wind.

    High: 89 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 90.

    High: 90 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 70.

    Low: 70 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny and hot, with a high near 92.

    High: 92 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, mostly clear, with a low around 55. Calm wind.
Saturday
Patchy fog before 9am. Otherwise, sunny, with a high near 84. Calm wind.
Saturday Night
Patchy fog after 4am. Otherwise, increasing clouds, with a low around 63. Calm wind.
Sunday
Patchy fog before 10am. Otherwise, partly sunny, with a high near 89. Light south wind.
Sunday Night
Mostly cloudy, with a low around 68. Calm wind.
Monday
Partly sunny, with a high near 90.
Monday Night
Mostly cloudy, with a low around 70.
Tuesday
Partly sunny and hot, with a high near 92.
Tuesday Night
Partly cloudy, with a low around 72.
Wednesday
Mostly sunny and hot, with a high near 92.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 89.
Thursday Night
Partly cloudy, with a low around 67.
Friday
Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Shirleysburg PA
 40.29°N 77.89°W (Elev. 600 ft)
Last Update:
8:10 pm EDT Aug 28, 2026
Forecast Valid:
10pm EDT Aug 28, 2026-6pm EDT Sep 4, 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