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.

Fair

30°F

-1°C

Humidity 61%
Wind Speed S 10 mph
Barometer 30.05 in (1019.3 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 13 Jan 5:53 am EST
Extended Forecast for

Williamsburg PA

  • Today

    Today: Increasing clouds, with a high near 48. South wind 3 to 7 mph.

    High: 48 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 39. Southwest wind around 7 mph.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Rain, mainly after 1pm. High near 47. Southwest wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Chance Rain
    then Rain

  • Wednesday Night

    Wednesday Night: Rain likely before 10pm, then rain and snow likely between 10pm and 1am, then a slight chance of snow after 1am. Mostly cloudy, with a low around 17. West wind 7 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 17 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: A slight chance of snow showers before 1pm. Partly sunny, with a high near 24. West wind around 16 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.

    High: 24 °F

    Slight Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 32.

    High: 32 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow showers. Partly sunny, with a high near 38. Chance of precipitation is 40%.

    High: 38 °F

    Chance Snow
    Showers

Detailed Forecast

Today
Increasing clouds, with a high near 48. South wind 3 to 7 mph.
Tonight
Mostly cloudy, with a low around 39. Southwest wind around 7 mph.
Wednesday
Rain, mainly after 1pm. High near 47. Southwest wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Rain likely before 10pm, then rain and snow likely between 10pm and 1am, then a slight chance of snow after 1am. Mostly cloudy, with a low around 17. West wind 7 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday
A slight chance of snow showers before 1pm. Partly sunny, with a high near 24. West wind around 16 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 12.
Friday
Partly sunny, with a high near 32.
Friday Night
Mostly cloudy, with a low around 24.
Saturday
A chance of snow showers. Partly sunny, with a high near 38. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around 17.
Sunday
Partly sunny, with a high near 27.
Sunday Night
Mostly cloudy, with a low around 13.
M.L.King Day
Partly sunny, with a high near 25.
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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:
3:31 am EST Jan 13, 2026
Forecast Valid:
6am EST Jan 13, 2026-6pm EST Jan 19, 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