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Hazardous Weather Conditions

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Fog

40°F

4°C

Humidity 100%
Wind Speed Calm
Barometer 30.17 in (1022.8 mb)
Dewpoint 40°F (4°C)
Visibility 0.25 mi
Last update 4 Mar 10:53 pm EST
Extended Forecast for

3 Miles SW Sproul PA

Dense Fog Advisory March 4, 11:50pm until March 5, 04:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory March 4, 11:50pm until March 5, 04:00am

    NOW until 4:00am Thu

    Dense Fog Advisory

  • Tonight

    Low: 43 °F

    Showers and
    Dense Fog

  • Thursday

    Thursday: Showers, with thunderstorms also possible after 4pm. Areas of dense fog before 10am. High near 54. Southwest wind around 6 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 54 °F

    Showers and
    Areas Dense
    Fog

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 2am, then a slight chance of showers between 2am and 3am. Low around 49. South wind 7 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Showers then
    Chance
    Showers

  • Friday

    Friday: A chance of showers, mainly after 1pm. Partly sunny, with a high near 58. Southwest wind around 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 58 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of showers before 1am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 49. South wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 49 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 69. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 69 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.

    Low: 45 °F

    Showers
    Likely

  • Sunday

    Sunday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Widespread dense fog, mainly before 4am. Low around 43. South wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Showers, with thunderstorms also possible after 4pm. Areas of dense fog before 10am. High near 54. Southwest wind around 6 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Showers and possibly a thunderstorm before 2am, then a slight chance of showers between 2am and 3am. Low around 49. South wind 7 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A chance of showers, mainly after 1pm. Partly sunny, with a high near 58. Southwest wind around 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A slight chance of showers before 1am, then a slight chance of showers after 4am. Mostly cloudy, with a low around 49. South wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Saturday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. High near 69. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.
Sunday
Mostly sunny, with a high near 56.
Sunday Night
Mostly clear, with a low around 42.
Monday
Sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
A chance of showers. Partly sunny, with a high near 70. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 40%.
Wednesday
Showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Sproul PA
 40.31°N 78.55°W (Elev. 2457 ft)
Last Update:
11:07 pm EST Mar 4, 2026
Forecast Valid:
11pm EST Mar 4, 2026-6pm EDT Mar 11, 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