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.

Mostly Cloudy

82°F

28°C

Humidity 67%
Wind Speed W 6 mph
Barometer 29.89 in (1011.0 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 18 Jun 4:53 pm EDT
Extended Forecast for

Defiance PA

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms. Partly sunny, with a high near 82. West wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers, mainly before 7pm. Partly cloudy, with a low around 68. Southwest wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 68 °F

    Chance
    Showers then
    Partly Cloudy

  • Juneteenth

    Juneteenth: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 83. Southwest wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Chance
    T-storms then
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 60. Northwest wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Showers
    Likely then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 81. Northwest wind around 7 mph.

    High: 81 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms. Partly sunny, with a high near 82. West wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A chance of showers, mainly before 7pm. Partly cloudy, with a low around 68. Southwest wind around 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Juneteenth
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 83. Southwest wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 60. Northwest wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Sunny, with a high near 81. Northwest wind around 7 mph.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
Mostly clear, with a low around 66.
Sunday
Mostly sunny, with a high near 90.
Sunday Night
Mostly clear, with a low around 70.
Monday
Sunny and hot, with a high near 94.
Monday Night
Mostly clear, with a low around 71.
Tuesday
Sunny and hot, with a high near 93.
Tuesday Night
Mostly clear, with a low around 71.
Wednesday
A chance of showers. Sunny and hot, with a high near 92.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Defiance PA
 40.14°N 78.23°W (Elev. 1401 ft)
Last Update:
1:30 pm EDT Jun 18, 2025
Forecast Valid:
5pm EDT Jun 18, 2025-6pm EDT Jun 25, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation