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.

Overcast

28°F

-2°C

Humidity 63%
Wind Speed W 8 mph
Barometer 30.30 in (1028.0 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 29 Nov 12:53 am EST
Extended Forecast for

Williamsburg PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 23. West wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 23 °F

    Mostly Cloudy

  • Saturday

    Saturday: Increasing clouds, with a high near 39. West wind around 6 mph becoming calm in the afternoon.

    High: 39 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: A chance of snow showers after 2am. Cloudy, with a low around 27. Light southeast wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 40%.

    Low: 27 °F

    Chance Snow
    Showers

  • Sunday

    Sunday: Rain and snow showers likely before 1pm, then a chance of rain showers between 1pm and 4pm, then a chance of rain and snow showers after 4pm. Mostly cloudy, with a high near 45. South wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 45 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 26. West wind around 10 mph, with gusts as high as 25 mph.

    Low: 26 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of snow showers after 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.

    Low: 24 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Tuesday

    Tuesday: Snow showers. High near 36. Chance of precipitation is 80%.

    High: 36 °F

    Snow Showers

  • Tuesday Night

    Tuesday Night: A chance of snow showers before 1am. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.

    Low: 23 °F

    Chance Snow
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a low around 23. West wind 8 to 10 mph, with gusts as high as 21 mph.
Saturday
Increasing clouds, with a high near 39. West wind around 6 mph becoming calm in the afternoon.
Saturday Night
A chance of snow showers after 2am. Cloudy, with a low around 27. Light southeast wind becoming south 5 to 10 mph in the evening. Winds could gust as high as 24 mph. Chance of precipitation is 40%.
Sunday
Rain and snow showers likely before 1pm, then a chance of rain showers between 1pm and 4pm, then a chance of rain and snow showers after 4pm. Mostly cloudy, with a high near 45. South wind around 10 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
Mostly cloudy, with a low around 26. West wind around 10 mph, with gusts as high as 25 mph.
Monday
Partly sunny, with a high near 38.
Monday Night
A chance of snow showers after 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 40%.
Tuesday
Snow showers. High near 36. Chance of precipitation is 80%.
Tuesday Night
A chance of snow showers before 1am. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
Mostly cloudy, with a high near 34.
Thursday Night
Mostly cloudy, with a low around 13.
Friday
Mostly cloudy, with a high near 32.
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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:
1:05 am EST Nov 29, 2025
Forecast Valid:
1am EST Nov 29, 2025-6pm EST Dec 5, 2025
 
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Additional Resources

Radar & Satellite Image

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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