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.

Fog/Mist

70°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 30.20 in (1021.6 mb)
Dewpoint 70°F (21°C)
Visibility 2.50 mi
Last update 7 Aug 1:53 am EDT
Extended Forecast for

3 Miles NW Williamsburg PA

  • Overnight

    Overnight: Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Patchy Fog

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 5pm. Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    Showers and
    Patchy Fog
    then T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 5am, then a chance of showers. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    T-storms
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms, mainly before 3pm. Mostly cloudy through mid morning, then gradual clearing, with a high near 84. Calm wind becoming west 5 to 8 mph in the morning. Chance of precipitation is 30%.

    High: 84 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 68. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.

    Low: 69 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 67. Calm wind.
Friday
Showers and thunderstorms likely, mainly after 5pm. Patchy fog between 7am and 8am. Otherwise, partly sunny, with a high near 81. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms likely before 5am, then a chance of showers. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms, mainly before 3pm. Mostly cloudy through mid morning, then gradual clearing, with a high near 84. Calm wind becoming west 5 to 8 mph in the morning. Chance of precipitation is 30%.
Saturday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 68. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 84.
Sunday Night
Mostly clear, with a low around 66.
Monday
Mostly sunny, with a high near 86.
Monday Night
A chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Tuesday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 50%.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 80. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Williamsburg PA
 40.5°N 78.23°W (Elev. 1362 ft)
Last Update:
2:24 am EDT Aug 7, 2026
Forecast Valid:
2am EDT Aug 7, 2026-6pm EDT Aug 13, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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