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

45°F

7°C

Humidity 66%
Wind Speed S 3 mph
Barometer 30.23 in (1024.6 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 2 Nov 7:53 pm EST
Extended Forecast for

Defiance PA

  • Tonight

    Tonight: Partly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 62. Light and variable wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 24 mph.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. West wind around 10 mph, with gusts as high as 25 mph.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 58. West wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 58 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39. West wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of showers before 1am. Partly cloudy, with a low around 40. Chance of precipitation is 30%.

    Low: 40 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 55.

    High: 55 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 37. Calm wind.
Monday
Sunny, with a high near 62. Light and variable wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 24 mph.
Monday Night
Mostly clear, with a low around 39. West wind around 10 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 58. West wind 7 to 10 mph, with gusts as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 39. West wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
A chance of showers before 1am. Partly cloudy, with a low around 40. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 55.
Thursday Night
Partly cloudy, with a low around 36.
Friday
A chance of showers after 1pm. Mostly cloudy, with a high near 60. Chance of precipitation is 30%.
Friday Night
Showers likely. Mostly cloudy, with a low around 46. Chance of precipitation is 70%.
Saturday
Partly sunny, with a high near 59.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 54. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Defiance PA
 40.17°N 78.23°W (Elev. 1135 ft)
Last Update:
7:46 pm EST Nov 2, 2025
Forecast Valid:
8pm EST Nov 2, 2025-6pm EST Nov 9, 2025
 
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