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.

Mostly Cloudy

78°F

26°C

Humidity 76%
Wind Speed W 6 mph
Barometer 29.98 in (1014.2 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 13 Sep 12:53 pm EDT
Extended Forecast for

Marklesburg PA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 84. West wind around 6 mph.

    High: 84 °F

    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers between 2am and 3am. Mostly clear during the early evening, then becoming mostly cloudy, with a low around 60. Light and variable wind becoming northwest around 6 mph in the evening. Chance of precipitation is 20%.

    Low: 60 °F

    Slight Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 74. North wind around 7 mph.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 50%.

    High: 85 °F

    Partly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 84. West wind around 6 mph.
Tonight
A slight chance of showers between 2am and 3am. Mostly clear during the early evening, then becoming mostly cloudy, with a low around 60. Light and variable wind becoming northwest around 6 mph in the evening. Chance of precipitation is 20%.
Monday
Sunny, with a high near 74. North wind around 7 mph.
Monday Night
Mostly clear, with a low around 50. Calm wind.
Tuesday
Sunny, with a high near 77. Calm wind becoming south 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 58.
Wednesday
Mostly sunny, with a high near 85.
Wednesday Night
Partly cloudy, with a low around 64.
Thursday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Friday
A chance of showers. Partly sunny, with a high near 82. Chance of precipitation is 40%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marklesburg PA
 40.38°N 78.16°W (Elev. 915 ft)
Last Update:
9:31 am EDT Sep 13, 2026
Forecast Valid:
1pm EDT Sep 13, 2026-6pm EDT Sep 19, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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