National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Overcast

55°F

13°C

Humidity 26%
Wind Speed W 20 G 31 mph
Barometer 29.58 in (1002.2 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 13 Mar 5:53 pm EDT
Extended Forecast for

Defiance PA

Wind Advisory March 13, 06:40pm until March 14, 08:00am
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory March 13, 06:40pm until March 14, 08:00am

    NOW until 8:00am Sat

    Wind Advisory

  • Tonight

    Low: 33 °F

    Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 49. West wind 9 to 15 mph, with gusts as high as 36 mph.

    High: 49 °F

    Sunny

  • Saturday Night

    Saturday Night: Increasing clouds, with a low around 34. Calm wind.

    Low: 34 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy, with a high near 55. Southeast wind 7 to 15 mph, with gusts as high as 29 mph.

    High: 55 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Cloudy, with a low around 48. Southeast wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers. High near 65. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 65 °F

    Showers

  • Monday Night

    Monday Night: A chance of rain and snow showers before 2am. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.

    Low: 23 °F

    Chance
    Rain/Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 31.

    High: 31 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A chance of showers, mainly between 7pm and 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 33. West wind 14 to 16 mph, with gusts as high as 45 mph. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 49. West wind 9 to 15 mph, with gusts as high as 36 mph.
Saturday Night
Increasing clouds, with a low around 34. Calm wind.
Sunday
Mostly cloudy, with a high near 55. Southeast wind 7 to 15 mph, with gusts as high as 29 mph.
Sunday Night
Showers likely, mainly after 2am. Cloudy, with a low around 48. Southeast wind around 14 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers. High near 65. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
A chance of rain and snow showers before 2am. Mostly cloudy, with a low around 23. Chance of precipitation is 40%.
Tuesday
Mostly cloudy, with a high near 31.
Tuesday Night
Mostly cloudy, with a low around 19.
Wednesday
Partly sunny, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 28.
Thursday
Partly sunny, with a high near 49.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
Partly sunny, with a high near 51.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Defiance PA
 40.17°N 78.23°W (Elev. 1135 ft)
Last Update:
6:06 pm EDT Mar 13, 2026
Forecast Valid:
6pm EDT Mar 13, 2026-6pm EDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation