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

71°F

22°C

Humidity 36%
Wind Speed S 9 mph
Barometer 30.06 in (1017.7 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Last update 16 May 11:53 am EDT
Extended Forecast for

5 Miles WNW Marklesburg PA

  • This Afternoon

    This Afternoon: Increasing clouds, with a high near 82. Southwest wind 8 to 11 mph, with gusts as high as 22 mph.

    High: 82 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A chance of showers and thunderstorms. Cloudy, then gradually becoming partly cloudy, with a low around 59. West wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.

    Low: 59 °F

    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. West wind 3 to 5 mph. Chance of precipitation is 30%.

    High: 84 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 60. Calm wind. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 20%.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

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

    Low: 66 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 92.

    High: 92 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 60%.

    High: 87 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

This Afternoon
Increasing clouds, with a high near 82. Southwest wind 8 to 11 mph, with gusts as high as 22 mph.
Tonight
A chance of showers and thunderstorms. Cloudy, then gradually becoming partly cloudy, with a low around 59. West wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
Sunday
A slight chance of showers between 1pm and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 84. West wind 3 to 5 mph. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 60. Calm wind. Chance of precipitation is 30%.
Monday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 66.
Tuesday
Mostly sunny and hot, with a high near 92.
Tuesday Night
Partly cloudy, with a low around 68.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 60%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Thursday
Partly sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 49.
Friday
A chance of showers. Partly sunny, with a high near 71. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WNW Marklesburg PA
 40.41°N 78.24°W (Elev. 1345 ft)
Last Update:
8:05 am EDT May 16, 2026
Forecast Valid:
12pm EDT May 16, 2026-6pm EDT May 22, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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