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

Critical Fire Weather Conditions and Severe Thunderstorms Today

Scattered severe thunderstorms are possible across portions of the northern High Plains this afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin today and the southern High Plains on Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Thunderstorm Light Rain and Windy

57°F

14°C

Humidity 67%
Wind Speed W 28 G 41 mph
Barometer 29.76 in (1007.7 mb)
Dewpoint 46°F (8°C)
Visibility 8.00 mi
Last update 13 May 5:53 pm EDT
Extended Forecast for

Williamsburg PA

  • Tonight

    Tonight: Showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Low around 43. Southwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 43 °F

    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 57. Northwest wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    High: 57 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, mainly before 7pm. Mostly cloudy, with a low around 45. Northwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    Low: 45 °F

    Chance
    Showers then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny through mid morning, then becoming sunny, with a high near 70. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.

    High: 70 °F

    Becoming
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Partly sunny, with a high near 84.

    High: 84 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Low around 43. Southwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, mainly after 2pm. Mostly cloudy, with a high near 57. Northwest wind 7 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers, mainly before 7pm. Mostly cloudy, with a low around 45. Northwest wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Friday
Partly sunny through mid morning, then becoming sunny, with a high near 70. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.
Friday Night
Partly cloudy, with a low around 48. Calm wind.
Saturday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 60.
Monday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 65. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 92. Chance of precipitation is 30%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Wednesday
Showers likely. Partly sunny, with a high near 87. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Williamsburg PA
 40.48°N 78.23°W (Elev. 942 ft)
Last Update:
2:20 pm EDT May 13, 2026
Forecast Valid:
6pm EDT May 13, 2026-6pm EDT May 20, 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