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

44°F

7°C

Humidity 96%
Wind Speed NE 7 mph
Barometer 29.97 in (1015.2 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 26 Apr 1:53 am EDT
Extended Forecast for

4 Miles WNW Williamsburg PA

  • Overnight

    Overnight: Patchy drizzle and fog. Cloudy, with a low around 42. East wind around 6 mph.

    Low: 42 °F

    Patchy
    Drizzle and
    Patchy Fog

  • Sunday

    Sunday: Patchy drizzle before 7am. Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 62. Northeast wind 3 to 5 mph.

    High: 62 °F

    Patchy
    Drizzle and
    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 70. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46. Southeast wind around 6 mph.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 65 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers. Mostly cloudy, with a low around 49. Chance of precipitation is 40%.

    Low: 49 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 64. Chance of precipitation is 90%.

    High: 64 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 43. Chance of precipitation is 80%.

    Low: 43 °F

    Showers then
    Chance
    Showers

Detailed Forecast

Overnight
Patchy drizzle and fog. Cloudy, with a low around 42. East wind around 6 mph.
Sunday
Patchy drizzle before 7am. Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 62. Northeast wind 3 to 5 mph.
Sunday Night
Mostly clear, with a low around 41. Calm wind.
Monday
Sunny, with a high near 70. Calm wind becoming southeast around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 46. Southeast wind around 6 mph.
Tuesday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 65. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 49. Chance of precipitation is 40%.
Wednesday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 64. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Low around 43. Chance of precipitation is 80%.
Thursday
Mostly sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 37.
Friday
Mostly sunny, with a high near 59.
Friday Night
Partly cloudy, with a low around 36.
Saturday
A chance of showers. Mostly sunny, with a high near 58. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Williamsburg PA
 40.48°N 78.29°W (Elev. 988 ft)
Last Update:
2:21 am EDT Apr 26, 2026
Forecast Valid:
2am EDT Apr 26, 2026-6pm EDT May 2, 2026
 
Forecast Discussion
 
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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