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

75°F

24°C

Humidity 60%
Wind Speed Vrbl 5 mph
Barometer 30.16 in (1020.7 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 4 Aug 11:53 am EDT
Extended Forecast for

4 Miles WNW Williamsburg PA

  • This Afternoon

    This Afternoon: Sunny, with a high near 81. Calm wind.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 65. Light east wind.

    Low: 65 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers between 9am and noon, then a chance of showers and thunderstorms after noon. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 80. Calm wind becoming southeast around 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Slight Chance
    Showers then
    Heavy Rain

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Some of the storms could produce heavy rainfall. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Heavy Rain
    and Patchy
    Fog then
    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. Patchy fog before 9am. High near 83. Light southwest wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Heavy Rain
    and Patchy
    Fog then
    Heavy Rain

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Some of the storms could produce heavy rainfall. Low around 69. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Heavy Rain
    then Chance
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm, mainly after 2pm. Some of the storms could produce heavy rainfall. High near 83. Chance of precipitation is 80%.

    High: 83 °F

    Heavy Rain

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Some of the storms could produce heavy rainfall. Low around 66. Chance of precipitation is 80%.

    Low: 66 °F

    Heavy Rain
    then Chance
    T-storms

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.

    High: 83 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a high near 81. Calm wind.
Tonight
Partly cloudy, with a low around 65. Light east wind.
Wednesday
A slight chance of showers between 9am and noon, then a chance of showers and thunderstorms after noon. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 80. Calm wind becoming southeast around 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Some of the storms could produce heavy rainfall. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. Some of the storms could produce heavy rainfall. Patchy fog before 9am. High near 83. Light southwest wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Some of the storms could produce heavy rainfall. Low around 69. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and possibly a thunderstorm, mainly after 2pm. Some of the storms could produce heavy rainfall. High near 83. Chance of precipitation is 80%.
Friday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Some of the storms could produce heavy rainfall. Low around 66. Chance of precipitation is 80%.
Saturday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 67.
Monday
Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Williamsburg PA
 40.5°N 78.26°W (Elev. 1335 ft)
Last Update:
12:36 pm EDT Aug 4, 2026
Forecast Valid:
12pm EDT Aug 4, 2026-6pm EDT Aug 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation