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.

Fair

26°F

-3°C

Humidity 71%
Wind Speed Calm
Barometer 30.21 in (1025.0 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 1 Dec 5:53 pm EST
Extended Forecast for

Williamsburg PA

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

  • Tonight

    Tonight: Snow likely, mainly after 4am. Mostly cloudy, with a low around 26. Calm wind becoming southeast around 6 mph after midnight. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 2 inches possible.

    Low: 26 °F

    Mostly Cloudy
    then Snow
    Likely

  • Tuesday

    Tuesday: Snow before 1pm, then a chance of rain and snow between 1pm and 4pm, then a chance of snow after 4pm. High near 36. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 36 °F

    Snow then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 22. Northwest wind 3 to 7 mph.

    Low: 22 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37. West wind 3 to 6 mph.

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 23. Southwest wind 3 to 6 mph.

    Low: 23 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 35.

    High: 35 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Snow likely, mainly after 4am. Mostly cloudy, with a low around 26. Calm wind becoming southeast around 6 mph after midnight. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 2 inches possible.
Tuesday
Snow before 1pm, then a chance of rain and snow between 1pm and 4pm, then a chance of snow after 4pm. High near 36. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Tuesday Night
Partly cloudy, with a low around 22. Northwest wind 3 to 7 mph.
Wednesday
Mostly sunny, with a high near 37. West wind 3 to 6 mph.
Wednesday Night
Partly cloudy, with a low around 23. Southwest wind 3 to 6 mph.
Thursday
Partly sunny, with a high near 35.
Thursday Night
Partly cloudy, with a low around 11.
Friday
Partly sunny, with a high near 31.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
Partly sunny, with a high near 40.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
Mostly cloudy, with a high near 37.
Sunday Night
Mostly cloudy, with a low around 19.
Monday
Partly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Williamsburg PA
 40.45°N 78.21°W (Elev. 1086 ft)
Last Update:
2:26 pm EST Dec 1, 2025
Forecast Valid:
6pm EST Dec 1, 2025-6pm EST Dec 8, 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