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

74°F

23°C

Humidity 64%
Wind Speed SW 8 mph
Barometer 29.93 in (1012.9 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 13 Oct 7:53 pm EDT
Extended Forecast for

Shirleysburg PA

  • Tonight

    Tonight: Mostly clear, with a low around 66. Light south wind.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers, mainly between 2pm and 3pm. Partly sunny, with a high near 83. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 83 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers before 10pm. Mostly cloudy, with a low around 55. Calm wind. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers after 2pm. Partly sunny, with a high near 69. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Partly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Showers, mainly after 8pm. Low around 57. Calm wind becoming south around 6 mph after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Showers

  • Friday

    Friday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 76. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 76 °F

    Showers
    Likely

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 1am. Otherwise, mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear
    then Areas
    Frost

Detailed Forecast

Tonight
Mostly clear, with a low around 66. Light south wind.
Wednesday
A chance of showers, mainly between 2pm and 3pm. Partly sunny, with a high near 83. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A slight chance of showers before 10pm. Mostly cloudy, with a low around 55. Calm wind. Chance of precipitation is 20%.
Thursday
A chance of showers after 2pm. Partly sunny, with a high near 69. Calm wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Showers, mainly after 8pm. Low around 57. Calm wind becoming south around 6 mph after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 76. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Mostly sunny, with a high near 53.
Saturday Night
Areas of frost after 1am. Otherwise, mostly clear, with a low around 33.
Sunday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 63.
Sunday Night
Mostly clear, with a low around 37.
Monday
Patchy frost. Otherwise, mostly sunny, with a high near 67.
Monday Night
Mostly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 68.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Shirleysburg PA
 40.29°N 77.89°W (Elev. 600 ft)
Last Update:
8:05 pm EDT Oct 13, 2026
Forecast Valid:
8pm EDT Oct 13, 2026-6pm EDT Oct 20, 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