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.

A Few Clouds

13°F

-11°C

Humidity 77%
Wind Speed Calm
Barometer 29.93 in (1016.1 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Last update 3 Jan 6:53 am EST
Extended Forecast for

Williamsburg PA

  • Today

    Today: Mostly cloudy, with a high near 29. Light west wind.

    High: 29 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of snow showers between 8pm and 9pm. Mostly cloudy, with a low around 20. Calm wind. Chance of precipitation is 20%.

    Low: 20 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 31. Light west wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

    High: 31 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 18. Northwest wind around 6 mph becoming calm in the evening.

    Low: 18 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 36. Calm wind becoming south around 6 mph in the afternoon.

    High: 36 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers after 1pm. Mostly cloudy, with a high near 45. Chance of precipitation is 30%.

    High: 45 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.

    Low: 35 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 50.

    High: 50 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly cloudy, with a high near 29. Light west wind.
Tonight
A slight chance of snow showers between 8pm and 9pm. Mostly cloudy, with a low around 20. Calm wind. Chance of precipitation is 20%.
Sunday
Partly sunny, with a high near 31. Light west wind increasing to 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 18. Northwest wind around 6 mph becoming calm in the evening.
Monday
Mostly cloudy, with a high near 36. Calm wind becoming south around 6 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 25.
Tuesday
A chance of showers after 1pm. Mostly cloudy, with a high near 45. Chance of precipitation is 30%.
Tuesday Night
A chance of showers before 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Wednesday
Mostly cloudy, with a high near 50.
Wednesday Night
Mostly cloudy, with a low around 32.
Thursday
Mostly cloudy, with a high near 49.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 39. Chance of precipitation is 40%.
Friday
A chance of showers. Mostly cloudy, with a high near 56. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Williamsburg PA
 40.48°N 78.23°W (Elev. 942 ft)
Last Update:
7:05 am EST Jan 3, 2026
Forecast Valid:
7am EST Jan 3, 2026-6pm EST Jan 9, 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