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.

Light Snow Fog/Mist

21°F

-6°C

Humidity 85%
Wind Speed W 10 mph
Barometer 30.09 in (1021.4 mb)
Dewpoint 17°F (-8°C)
Visibility 0.75 mi
Wind Chill10°F (-12°C)
Last update 17 Mar 7:53 pm EDT
Extended Forecast for

Williamsburg PA

  • Tonight

    Tonight: Scattered snow showers, mainly before 9pm. Partly cloudy, with a low around 17. West wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

    Low: 17 °F

    Scattered
    Snow Showers
    then Mostly
    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38. Calm wind becoming south around 6 mph in the afternoon.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26. Light south wind.

    Low: 26 °F

    Mostly Cloudy

  • Thursday

    Thursday: A slight chance of showers after 2pm. Partly sunny, with a high near 50. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 50 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, mainly after 8pm. Mostly cloudy, with a low around 35. Calm wind. Chance of precipitation is 40%.

    Low: 35 °F

    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 53.

    High: 53 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 40%.

    Low: 38 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Scattered snow showers, mainly before 9pm. Partly cloudy, with a low around 17. West wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 38. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 26. Light south wind.
Thursday
A slight chance of showers after 2pm. Partly sunny, with a high near 50. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night
A chance of showers, mainly after 8pm. Mostly cloudy, with a low around 35. Calm wind. Chance of precipitation is 40%.
Friday
Mostly cloudy, with a high near 53.
Friday Night
A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 59.
Saturday Night
Mostly cloudy, with a low around 40.
Sunday
A chance of showers after 2pm. Partly sunny, with a high near 64. Chance of precipitation is 30%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 37. Chance of precipitation is 30%.
Monday
Sunny, with a high near 48.
Monday Night
Mostly clear, with a low around 26.
Tuesday
Mostly sunny, with a high near 48.
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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:
2:21 pm EDT Mar 17, 2026
Forecast Valid:
8pm EDT Mar 17, 2026-6pm EDT Mar 24, 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