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

42°F

6°C

Humidity 96%
Wind Speed Calm
Barometer 30.19 in (1023.6 mb)
Dewpoint 41°F (5°C)
Visibility 0.25 mi
Last update 4 Mar 4:53 pm EST
Extended Forecast for

4 Miles WNW Williamsburg PA

  • This Afternoon

    This Afternoon: A chance of rain. Areas of fog. Otherwise, cloudy, with a high near 45. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Chance Rain
    and Areas Fog

  • Tonight

    Tonight: A slight chance of rain before 9pm, then drizzle, mainly after 1am. Areas of fog. Otherwise, cloudy, with a low around 43. Calm wind. Chance of precipitation is 20%.

    Low: 43 °F

    Chance
    Drizzle and
    Areas Fog
    then Drizzle
    and Areas Fog

  • Thursday

    Thursday: Rain, with thunderstorms also possible after 4pm. Areas of fog before 1pm. High near 58. Calm wind. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 58 °F

    Rain and
    Areas Fog

  • Thursday Night

    Thursday Night: Rain and possibly a thunderstorm before 1am, then rain likely. Low around 49. Calm wind. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 49 °F

    Rain

  • Friday

    Friday: A chance of showers. Partly sunny, with a high near 63. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers, mainly before 1am. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.

    Low: 50 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then showers after 4pm. High near 74. Chance of precipitation is 80%.

    High: 74 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers likely before 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely

  • Sunday

    Sunday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of rain. Areas of fog. Otherwise, cloudy, with a high near 45. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tonight
A slight chance of rain before 9pm, then drizzle, mainly after 1am. Areas of fog. Otherwise, cloudy, with a low around 43. Calm wind. Chance of precipitation is 20%.
Thursday
Rain, with thunderstorms also possible after 4pm. Areas of fog before 1pm. High near 58. Calm wind. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Rain and possibly a thunderstorm before 1am, then rain likely. Low around 49. Calm wind. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
A chance of showers. Partly sunny, with a high near 63. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of showers, mainly before 1am. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.
Saturday
A chance of showers before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then showers after 4pm. High near 74. Chance of precipitation is 80%.
Saturday Night
Showers likely before 1am. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Sunday
Mostly sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
A chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Wednesday
Showers likely. Mostly cloudy, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Williamsburg PA
 40.48°N 78.26°W (Elev. 902 ft)
Last Update:
4:34 pm EST Mar 4, 2026
Forecast Valid:
5pm EST Mar 4, 2026-6pm EDT Mar 11, 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