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Hazardous Weather Conditions

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

A Few Clouds

38°F

3°C

Humidity 60%
Wind Speed W 10 mph
Barometer 29.98 in (1016.2 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill31°F (-1°C)
Last update 21 Feb 9:53 am EST
Extended Forecast for

Williamsburg PA

  • Today

    Today: Partly sunny, with a high near 45. West wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 45 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of snow, mainly after 1am. Increasing clouds, with a low around 31. Calm wind. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    Low: 31 °F

    Slight Chance
    Snow then
    Chance Snow

  • Sunday

    Sunday: Snow. High near 35. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 35 °F

    Snow

  • Sunday Night

    Sunday Night: Snow. Low around 29. Northwest wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 29 °F

    Snow

  • Monday

    Monday: A chance of snow showers, mainly before 1pm. Mostly cloudy, with a high near 37. Northwest wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.

    High: 37 °F

    Chance Snow
    Showers

  • Monday Night

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

    Low: 18 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of snow showers after 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.

    Low: 22 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Wednesday

    Wednesday: A chance of snow showers before 1pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 43. Chance of precipitation is 40%.

    High: 43 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow

Detailed Forecast

Today
Partly sunny, with a high near 45. West wind 6 to 10 mph, with gusts as high as 21 mph.
Tonight
A chance of snow, mainly after 1am. Increasing clouds, with a low around 31. Calm wind. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Sunday
Snow. High near 35. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
Snow. Low around 29. Northwest wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Monday
A chance of snow showers, mainly before 1pm. Mostly cloudy, with a high near 37. Northwest wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.
Monday Night
Mostly cloudy, with a low around 18.
Tuesday
Partly sunny, with a high near 31.
Tuesday Night
A chance of snow showers after 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 30%.
Wednesday
A chance of snow showers before 1pm, then a chance of rain and snow showers. Mostly cloudy, with a high near 43. Chance of precipitation is 40%.
Wednesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 31. Chance of precipitation is 60%.
Thursday
A chance of showers. Mostly cloudy, with a high near 45. Chance of precipitation is 50%.
Thursday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 44.
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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:
7:06 am EST Feb 21, 2026
Forecast Valid:
10am EST Feb 21, 2026-6pm EST Feb 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation