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.

Fair

57°F

14°C

Humidity 34%
Wind Speed SW 7 mph
Barometer 30.00 in (1015.6 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 10 Mar 2:53 am EDT
Extended Forecast for

Shirleysburg PA

  • Overnight

    Overnight: Mostly clear, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers before 3am, then a slight chance of showers after 5am. Partly cloudy, with a low around 57. Calm wind. Chance of precipitation is 20%.

    Low: 57 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 11am. Some of the storms could be severe. High near 77. Calm wind becoming south 5 to 7 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Severe
    Thunderstorms

  • Wednesday Night

    Wednesday Night: Showers. Low around 42. South wind 6 to 8 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Showers

  • Thursday

    Thursday: A slight chance of rain showers before 11am, then a slight chance of snow showers between 11am and 2pm. Mostly cloudy, with a high near 45. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers after 2pm. Mostly cloudy, with a high near 54. Chance of precipitation is 30%.

    High: 54 °F

    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.

    Low: 35 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 46. Calm wind.
Tuesday
Sunny, with a high near 77. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
A slight chance of showers before 3am, then a slight chance of showers after 5am. Partly cloudy, with a low around 57. Calm wind. Chance of precipitation is 20%.
Wednesday
Showers, with thunderstorms also possible after 11am. Some of the storms could be severe. High near 77. Calm wind becoming south 5 to 7 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers. Low around 42. South wind 6 to 8 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
A slight chance of rain showers before 11am, then a slight chance of snow showers between 11am and 2pm. Mostly cloudy, with a high near 45. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 29.
Friday
A chance of showers after 2pm. Mostly cloudy, with a high near 54. Chance of precipitation is 30%.
Friday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 51.
Saturday Night
Mostly cloudy, with a low around 36.
Sunday
Mostly cloudy, with a high near 64.
Sunday Night
Showers. Low around 40. Chance of precipitation is 80%.
Monday
Rain and snow showers. High near 50. Chance of precipitation is 80%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Shirleysburg PA
 40.31°N 77.88°W (Elev. 600 ft)
Last Update:
2:50 am EDT Mar 10, 2026
Forecast Valid:
3am EDT Mar 10, 2026-6pm EDT Mar 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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