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.

Overcast

75°F

24°C

Humidity 60%
Wind Speed NW 14 G 22 mph
Barometer 29.95 in (1013.1 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 30 Jul 12:53 pm EDT
Extended Forecast for

Williamsburg PA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 80. North wind around 10 mph.

    High: 80 °F

    Partly Sunny

  • Tonight

    Tonight: Patchy fog after 3am. Otherwise, mostly clear, with a low around 57. Light west wind.

    Low: 57 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 8am. Otherwise, sunny, with a high near 85. Calm wind.

    High: 85 °F

    Patchy Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 87. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 87 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Cloudy, with a low around 65. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 78. Chance of precipitation is 80%.

    High: 78 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers before 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.

    Low: 63 °F

    Chance
    Showers

  • Monday

    Monday: Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 80. North wind around 10 mph.
Tonight
Patchy fog after 3am. Otherwise, mostly clear, with a low around 57. Light west wind.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 85. Calm wind.
Friday Night
Mostly cloudy, with a low around 62. Calm wind.
Saturday
A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 87. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 20%.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Cloudy, with a low around 65. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and possibly a thunderstorm. High near 78. Chance of precipitation is 80%.
Sunday Night
A chance of showers before 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Monday
Partly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 61.
Tuesday
Sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 65.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Williamsburg PA
 40.48°N 78.23°W (Elev. 942 ft)
Last Update:
11:51 am EDT Jul 30, 2026
Forecast Valid:
1pm EDT Jul 30, 2026-6pm EDT Aug 5, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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