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

57°F

14°C

Humidity 34%
Wind Speed SW 7 mph
Barometer 30.00 in (1015.6 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 10 Mar 2:53 am EDT
Extended Forecast for

Williamsburg PA

  • Overnight

    Overnight: Mostly clear, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Clear

  • Tuesday

    Tuesday: A slight chance of showers after 3pm. Mostly sunny, with a high near 76. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 20%.

    High: 76 °F

    Sunny then
    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers before 9pm, then a chance of showers after 1am. Partly cloudy, with a low around 56. Calm wind. Chance of precipitation is 30%.

    Low: 56 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. Some of the storms could be severe. High near 75. South wind 5 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: Showers. Low around 38. Southwest wind 9 to 13 mph becoming west after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 38 °F

    Showers

  • Thursday

    Thursday: Rain and snow showers likely before 11am, then a slight chance of snow showers between 11am and 2pm. Mostly cloudy, with a high near 42. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 42 °F

    Rain/Snow
    Likely then
    Slight Chance
    Snow Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers after 2pm. Mostly cloudy, with a high near 53. Chance of precipitation is 30%.

    High: 53 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.

    Low: 33 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 48. Calm wind.
Tuesday
A slight chance of showers after 3pm. Mostly sunny, with a high near 76. Calm wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers before 9pm, then a chance of showers after 1am. Partly cloudy, with a low around 56. Calm wind. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. Some of the storms could be severe. High near 75. South wind 5 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers. Low around 38. Southwest wind 9 to 13 mph becoming west after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain and snow showers likely before 11am, then a slight chance of snow showers between 11am and 2pm. Mostly cloudy, with a high near 42. Chance of precipitation is 60%. Little or no snow accumulation expected.
Thursday Night
Mostly clear, with a low around 28.
Friday
A chance of showers after 2pm. Mostly cloudy, with a high near 53. Chance of precipitation is 30%.
Friday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 49.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
Mostly cloudy, with a high near 62.
Sunday Night
Showers. Low around 37. Chance of precipitation is 80%.
Monday
Rain and snow showers. High near 46. Chance of precipitation is 80%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Williamsburg PA
 40.47°N 78.2°W (Elev. 994 ft)
Last Update:
2:50 am EDT Mar 10, 2026
Forecast Valid:
3am EDT Mar 10, 2026-6pm EDT Mar 16, 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