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

29°F

-2°C

Humidity 69%
Wind Speed N 3 mph
Barometer 30.14 in (1022.0 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 25 Dec 10:53 pm EST
Extended Forecast for

Williamsburg PA

Winter Weather Advisory December 26, 12:00pm until December 27, 07:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Tonight

    Tonight: Increasing clouds, with a low around 24. Calm wind.

    Low: 24 °F

    Increasing
    Clouds

  • Friday

    Friday: A chance of freezing rain before 2pm, then freezing rain and sleet between 2pm and 5pm, then sleet after 5pm. The sleet could be heavy at times. High near 31. Light east wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible. New sleet accumulation of less than a half inch possible.

    High: 31 °F

    Slight Chance
    Freezing Rain
    then Wintry
    Mix

  • Friday Night

    Friday Night: Freezing rain and sleet, becoming all freezing rain after 10pm. Low around 28. Southeast wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 90%. New ice accumulation of 0.1 to 0.2 of an inch possible. New sleet accumulation of less than a half inch possible.

    Low: 28 °F

    Wintry Mix
    then Freezing
    Rain

  • Saturday

    Saturday: Mostly cloudy, with a high near 41. Light northwest wind.

    High: 41 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 27. Calm wind.

    Low: 27 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers likely, mainly after 1pm. Cloudy, with a high near 42. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 42 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers. Low around 35. Chance of precipitation is 90%.

    Low: 35 °F

    Showers

  • Monday

    Monday: Showers likely, mainly before 1pm. Mostly cloudy, with a high near 53. Chance of precipitation is 70%.

    High: 53 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 20. Breezy.

    Low: 20 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

Detailed Forecast

Tonight
Increasing clouds, with a low around 24. Calm wind.
Friday
A chance of freezing rain before 2pm, then freezing rain and sleet between 2pm and 5pm, then sleet after 5pm. The sleet could be heavy at times. High near 31. Light east wind becoming southeast 6 to 11 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New ice accumulation of less than a 0.1 of an inch possible. New sleet accumulation of less than a half inch possible.
Friday Night
Freezing rain and sleet, becoming all freezing rain after 10pm. Low around 28. Southeast wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 90%. New ice accumulation of 0.1 to 0.2 of an inch possible. New sleet accumulation of less than a half inch possible.
Saturday
Mostly cloudy, with a high near 41. Light northwest wind.
Saturday Night
Mostly cloudy, with a low around 27. Calm wind.
Sunday
Showers likely, mainly after 1pm. Cloudy, with a high near 42. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Showers. Low around 35. Chance of precipitation is 90%.
Monday
Showers likely, mainly before 1pm. Mostly cloudy, with a high near 53. Chance of precipitation is 70%.
Monday Night
Mostly cloudy, with a low around 20. Breezy.
Tuesday
Mostly cloudy, with a high near 29. Breezy.
Tuesday Night
Mostly cloudy, with a low around 21.
Wednesday
Partly sunny, with a high near 33.
Wednesday Night
Mostly cloudy, with a low around 22.
New Year's Day
Mostly cloudy, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Williamsburg PA
 40.48°N 78.23°W (Elev. 942 ft)
Last Update:
10:06 pm EST Dec 25, 2025
Forecast Valid:
11pm EST Dec 25, 2025-6pm EST Jan 1, 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