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

40°F

4°C

Humidity 35%
Wind Speed SE 8 mph
Barometer 30.24 in (1025.2 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 15 Mar 8:53 am EDT
Extended Forecast for

Williamsburg PA

  • Today

    Today: Partly sunny, with a high near 54. Breezy, with a southeast wind 11 to 20 mph, with gusts as high as 39 mph.

    High: 54 °F

    Partly Sunny
    then Mostly
    Cloudy and
    Breezy

  • Tonight

    Tonight: Showers likely, mainly between midnight and 3am. Cloudy, with a low around 47. Southeast wind 13 to 17 mph, with gusts as high as 38 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 47 °F

    Showers
    Likely

  • Monday

    Monday: Showers, with thunderstorms also possible after 11am. Some of the storms could be severe. High near 65. South wind 14 to 17 mph becoming west in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 65 °F

    Severe
    Thunderstorms

  • Monday Night

    Monday Night: Rain and snow showers likely before 2am, then a slight chance of snow showers. Cloudy, then gradually becoming partly cloudy, with a low around 22. West wind 16 to 18 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Rain/Snow
    Likely

  • Tuesday

    Tuesday: A slight chance of snow showers. Mostly cloudy, with a high near 31. West wind around 18 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.

    High: 31 °F

    Slight Chance
    Snow Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 18.

    Low: 18 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 49.

    High: 49 °F

    Mostly Cloudy

Detailed Forecast

Today
Partly sunny, with a high near 54. Breezy, with a southeast wind 11 to 20 mph, with gusts as high as 39 mph.
Tonight
Showers likely, mainly between midnight and 3am. Cloudy, with a low around 47. Southeast wind 13 to 17 mph, with gusts as high as 38 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
Showers, with thunderstorms also possible after 11am. Some of the storms could be severe. High near 65. South wind 14 to 17 mph becoming west in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Rain and snow showers likely before 2am, then a slight chance of snow showers. Cloudy, then gradually becoming partly cloudy, with a low around 22. West wind 16 to 18 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday
A slight chance of snow showers. Mostly cloudy, with a high near 31. West wind around 18 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
Partly sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
Mostly cloudy, with a high near 49.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
Partly sunny, with a high near 55.
Friday Night
A chance of showers. Mostly cloudy, with a low around 38. Chance of precipitation is 50%.
Saturday
A chance of rain and snow showers. Partly sunny, with a high near 52. Chance of precipitation is 40%.
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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:
8:05 am EDT Mar 15, 2026
Forecast Valid:
9am EDT Mar 15, 2026-6pm EDT Mar 21, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation