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

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Overcast and Breezy

37°F

3°C

Humidity 54%
Wind Speed W 23 G 37 mph
Barometer 29.58 in (1002.9 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill26°F (-3°C)
Last update 25 Feb 4:53 am EST
Extended Forecast for

Williamsburg PA

  • Overnight

    Overnight: A chance of snow. Cloudy, with a low around 27. Southwest wind around 7 mph. Chance of precipitation is 50%. Total nighttime snow accumulation of less than one inch possible.

    Low: 27 °F

    Chance Snow

  • Wednesday

    Wednesday: A chance of snow, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 46. West wind 8 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.

    High: 46 °F

    Chance Snow
    then Mostly
    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 25. West wind 3 to 8 mph. Winds could gust as high as 22 mph.

    Low: 25 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of snow. Mostly sunny, with a high near 41. Light west wind. Chance of precipitation is 20%.

    High: 41 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 23. Calm wind.

    Low: 23 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of snow. Cloudy, with a low around 27. Southwest wind around 7 mph. Chance of precipitation is 50%. Total nighttime snow accumulation of less than one inch possible.
Wednesday
A chance of snow, mainly before 7am. Cloudy, then gradually becoming mostly sunny, with a high near 46. West wind 8 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 25. West wind 3 to 8 mph. Winds could gust as high as 22 mph.
Thursday
A slight chance of snow. Mostly sunny, with a high near 41. Light west wind. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 23. Calm wind.
Friday
Sunny, with a high near 50.
Friday Night
Partly cloudy, with a low around 31.
Saturday
Sunny, with a high near 55.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
Mostly sunny, with a high near 42.
Sunday Night
A chance of snow showers. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.
Monday
A chance of snow showers. Partly sunny, with a high near 34. Chance of precipitation is 50%.
Monday Night
A chance of snow showers. Mostly cloudy, with a low around 18. Chance of precipitation is 30%.
Tuesday
A chance of snow showers. Partly sunny, with a high near 37. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Williamsburg PA
 40.48°N 78.23°W (Elev. 942 ft)
Last Update:
1:21 am EST Feb 25, 2026
Forecast Valid:
5am EST Feb 25, 2026-6pm EST Mar 3, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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