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

66°F

19°C

Humidity 90%
Wind Speed Calm
Barometer 30.01 in (1015.6 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 3 Aug 8:53 pm EDT
Extended Forecast for

Martinsburg PA

  • Tonight

    Tonight: Mostly clear, with a low around 56. Northwest wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Patchy fog before 7am. Otherwise, sunny, with a high near 80. Light and variable wind.

    High: 80 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 61. Light southeast wind.

    Low: 61 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly sunny through mid morning, then becoming cloudy, with a high near 81. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Patchy Fog
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 66 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 81. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 8pm. Low around 65. Chance of precipitation is 80%.

    Low: 65 °F

    Showers then
    Mostly Cloudy

  • Friday

    Friday: Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 70%.

    High: 81 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

    Low: 64 °F

    Showers
    Likely then
    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 56. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Patchy fog before 7am. Otherwise, sunny, with a high near 80. Light and variable wind.
Tuesday Night
Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 61. Light southeast wind.
Wednesday
A chance of showers and thunderstorms after 2pm. Patchy fog before 8am. Otherwise, mostly sunny through mid morning, then becoming cloudy, with a high near 81. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 50%. 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 slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 66. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 81. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm before 8pm. Low around 65. Chance of precipitation is 80%.
Friday
Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Sunday
Partly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 65.
Monday
Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Martinsburg PA
 40.31°N 78.32°W (Elev. 1407 ft)
Last Update:
8:11 pm EDT Aug 3, 2026
Forecast Valid:
9pm EDT Aug 3, 2026-6pm EDT Aug 10, 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