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

Hazardous Weather Conditions

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Overcast

30°F

-1°C

Humidity 61%
Wind Speed NW 10 G 20 mph
Barometer 30.36 in (1030.0 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 1 Dec 8:53 am EST
Extended Forecast for

Shirleysburg PA

Winter Weather Advisory December 2, 03:00am until December 2, 01:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • Today

    Today: Partly sunny, with a high near 40. Light north wind.

    High: 40 °F

    Partly Sunny

  • Tonight

    Tonight: Snow likely, mainly after 5am. Mostly cloudy, with a low around 25. Calm wind. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

    Low: 25 °F

    Mostly Cloudy
    then Snow
    Likely

  • Tuesday

    Tuesday: Snow, possibly mixed with rain before 4pm, then a chance of snow. High near 40. Light and variable wind. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 40 °F

    Rain/Snow

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 21. Light northwest wind.

    Low: 21 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 40. Calm wind.

    High: 40 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 14.

    Low: 14 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 33.

    High: 33 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, with a high near 40. Light north wind.
Tonight
Snow likely, mainly after 5am. Mostly cloudy, with a low around 25. Calm wind. Chance of precipitation is 60%. New snow accumulation of around an inch possible.
Tuesday
Snow, possibly mixed with rain before 4pm, then a chance of snow. High near 40. Light and variable wind. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Tuesday Night
Partly cloudy, with a low around 21. Light northwest wind.
Wednesday
Mostly sunny, with a high near 40. Calm wind.
Wednesday Night
Partly cloudy, with a low around 23.
Thursday
Partly sunny, with a high near 39.
Thursday Night
Partly cloudy, with a low around 14.
Friday
Mostly cloudy, with a high near 33.
Friday Night
A chance of snow showers. Mostly cloudy, with a low around 23. Chance of precipitation is 50%.
Saturday
A chance of rain and snow showers. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.
Saturday Night
Mostly cloudy, with a low around 27.
Sunday
Mostly cloudy, with a high near 41.
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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:
8:46 am EST Dec 1, 2025
Forecast Valid:
9am EST Dec 1, 2025-6pm EST Dec 7, 2025
 
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