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.

Overcast

41°F

5°C

Humidity 93%
Wind Speed Calm
Barometer 29.88 in (1012.8 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 10 Jan 2:53 pm EST
Extended Forecast for

Shirleysburg PA

  • This Afternoon

    This Afternoon: Showers, mainly before 5pm. High near 44. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 44 °F

    Showers

  • Tonight

    Tonight: A chance of showers, mainly before 11pm. Patchy fog between 8pm and 1am. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 32. Calm wind becoming northwest around 6 mph after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 32 °F

    Chance
    Showers and
    Patchy Fog
    then Patchy
    Fog

  • Sunday

    Sunday: A slight chance of snow showers after noon. Mostly sunny, with a high near 41. West wind 5 to 11 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.

    High: 41 °F

    Sunny then
    Slight Chance
    Snow Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 26. Northwest wind 7 to 11 mph, with gusts as high as 33 mph.

    Low: 26 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 43. West wind 5 to 8 mph, with gusts as high as 20 mph.

    High: 43 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of rain after 1pm. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.

    High: 48 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

This Afternoon
Showers, mainly before 5pm. High near 44. Calm wind. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
A chance of showers, mainly before 11pm. Patchy fog between 8pm and 1am. Otherwise, cloudy during the early evening, then gradual clearing, with a low around 32. Calm wind becoming northwest around 6 mph after midnight. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A slight chance of snow showers after noon. Mostly sunny, with a high near 41. West wind 5 to 11 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 26. Northwest wind 7 to 11 mph, with gusts as high as 33 mph.
Monday
Mostly sunny, with a high near 43. West wind 5 to 8 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 28.
Tuesday
Partly sunny, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
A chance of rain after 1pm. Mostly cloudy, with a high near 48. Chance of precipitation is 30%.
Wednesday Night
A chance of rain before 1am. Mostly cloudy, with a low around 24. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 33.
Thursday Night
Partly cloudy, with a low around 18.
Friday
Partly sunny, with a high near 36.
Friday Night
Mostly cloudy, with a low around 23.
Saturday
Partly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Shirleysburg PA
 40.29°N 77.89°W (Elev. 600 ft)
Last Update:
1:06 pm EST Jan 10, 2026
Forecast Valid:
3pm EST Jan 10, 2026-6pm EST Jan 17, 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