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.

Partly Cloudy

79°F

26°C

Humidity 67%
Wind Speed W 7 mph
Barometer 29.96 in (1013.5 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 10 Sep 3:53 pm EDT
Extended Forecast for

Martinsburg PA

  • Tonight

    Tonight: A slight chance of showers before 2am, then a chance of showers after 3am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 61. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 61 °F

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: Partly sunny, with a high near 79. Calm wind.

    High: 79 °F

    Partly Sunny

  • Friday Night

    Friday Night: A slight chance of showers before 3am, then a chance of showers after 4am. Mostly cloudy, with a low around 59. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 59 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 77. Light southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 77 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 11pm, then showers likely between 11pm and 2am. Mostly cloudy, with a low around 64. South wind around 6 mph becoming calm after midnight. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Showers
    Likely

  • Sunday

    Sunday: Mostly sunny, with a high near 82.

    High: 82 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers before 2am, then a chance of showers after 3am. Patchy fog after 11pm. Otherwise, mostly cloudy, with a low around 61. Northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Partly sunny, with a high near 79. Calm wind.
Friday Night
A slight chance of showers before 3am, then a chance of showers after 4am. Mostly cloudy, with a low around 59. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 77. Light southeast wind becoming south 5 to 10 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers likely and possibly a thunderstorm before 11pm, then showers likely between 11pm and 2am. Mostly cloudy, with a low around 64. South wind around 6 mph becoming calm after midnight. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 75.
Monday Night
Partly cloudy, with a low around 52.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
A chance of showers. Mostly sunny, with a high near 83. Chance of precipitation is 40%.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Thursday
Showers likely. Partly sunny, with a high near 80. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Martinsburg PA
 40.31°N 78.35°W (Elev. 1398 ft)
Last Update:
4:06 pm EDT Sep 10, 2026
Forecast Valid:
4pm EDT Sep 10, 2026-6pm EDT Sep 17, 2026
 
Forecast Discussion
 
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Additional Resources

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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