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

60°F

16°C

Humidity 60%
Wind Speed Calm
Barometer 29.91 in (1012.3 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 20 Jun 12:53 am EDT
Extended Forecast for

3 Miles S Williamsburg PA

  • Overnight

    Overnight: Mostly clear, with a low around 59. Southwest wind 3 to 5 mph.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of showers and thunderstorms between 4pm and 5pm. Sunny, with a high near 76. West wind 7 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    High: 76 °F

    Sunny then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 56. West wind 5 to 7 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 81. Light west wind increasing to 5 to 9 mph in the morning.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Showers, with thunderstorms also possible after 5am. Low around 59. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Slight Chance
    Showers then
    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm before 8am, then showers between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 77. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 77 °F

    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 59. Southwest wind 3 to 5 mph.
Saturday
A chance of showers and thunderstorms between 4pm and 5pm. Sunny, with a high near 76. West wind 7 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Saturday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 56. West wind 5 to 7 mph becoming calm in the evening.
Sunday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 81. Light west wind increasing to 5 to 9 mph in the morning.
Sunday Night
Showers, with thunderstorms also possible after 5am. Low around 59. Calm wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and possibly a thunderstorm before 8am, then showers between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 77. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Monday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 79.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 58. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 50%.
Thursday Night
A chance of showers. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 80. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Williamsburg PA
 40.43°N 78.21°W (Elev. 1168 ft)
Last Update:
12:41 am EDT Jun 20, 2026
Forecast Valid:
12am EDT Jun 20, 2026-6pm EDT Jun 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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