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.

Light Rain Fog/Mist

65°F

18°C

Humidity 100%
Wind Speed SE 3 mph
Barometer 30.15 in (1020.1 mb)
Dewpoint 65°F (18°C)
Visibility 2.00 mi
Last update 31 Aug 5:53 am EDT
Extended Forecast for

Marklesburg PA

  • Today

    Today: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 84. Light and variable wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, with a low around 71. Calm wind becoming southwest around 5 mph.

    Low: 71 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, mainly after 1pm. Some of the storms could be severe. Partly sunny, with a high near 90. West wind 3 to 8 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Partly Sunny
    then Severe
    Thunderstorms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 2am. Some of the storms could be severe. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Severe
    Thunderstorms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Some of the storms could be severe. Mostly sunny, with a high near 91. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Mostly Sunny
    then Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Some of the storms could be severe. Mostly cloudy, with a low around 71. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Severe
    Thunderstorms
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 30%.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A chance of showers before 8am. Partly sunny, with a high near 84. Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers then
    Partly Sunny

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 84. Light and variable wind. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Mostly cloudy, with a low around 71. Calm wind becoming southwest around 5 mph.
Tuesday
A chance of showers and thunderstorms, mainly after 1pm. Some of the storms could be severe. Partly sunny, with a high near 90. West wind 3 to 8 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms before 2am. Some of the storms could be severe. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers and thunderstorms after 2pm. Some of the storms could be severe. Mostly sunny, with a high near 91. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Some of the storms could be severe. Mostly cloudy, with a low around 71. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Friday
A chance of showers before 8am. Partly sunny, with a high near 84. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Marklesburg PA
 40.38°N 78.16°W (Elev. 915 ft)
Last Update:
6:36 am EDT Aug 31, 2026
Forecast Valid:
6am EDT Aug 31, 2026-6pm EDT Sep 6, 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