National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Fair

52°F

11°C

Humidity 38%
Wind Speed N 5 mph
Barometer 30.33 in (1027.7 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 11 Apr 7:53 pm EDT
Extended Forecast for

Williamsburg PA

  • Tonight

    Tonight: Mostly clear, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 69. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

    High: 69 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 57. South wind around 6 mph.

    Low: 57 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers. Mostly cloudy, with a high near 78. Southwest wind 6 to 13 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.

    High: 78 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers. Partly cloudy, with a low around 60. West wind 5 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 60 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 30%.

    High: 83 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 87.

    High: 87 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers before 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.

    Low: 64 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 37. Calm wind.
Sunday
Mostly sunny, with a high near 69. Calm wind becoming south 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 57. South wind around 6 mph.
Monday
A chance of showers. Mostly cloudy, with a high near 78. Southwest wind 6 to 13 mph, with gusts as high as 31 mph. Chance of precipitation is 40%.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 60. West wind 5 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 30%.
Tuesday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 87.
Wednesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.
Thursday
A chance of showers after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 30%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 50%.
Friday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 30%.
Friday Night
Mostly cloudy, with a low around 58.
Saturday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 50%.
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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 Apr 11, 2026
Forecast Valid:
7pm EDT Apr 11, 2026-6pm EDT Apr 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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