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

42°F

6°C

Humidity 82%
Wind Speed W 18 G 29 mph
Barometer 29.78 in (1008.4 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 12 Mar 3:53 am EDT
Extended Forecast for

Shirleysburg PA

  • Overnight

    Overnight: A chance of showers. Cloudy, with a low around 37. Northwest wind 10 to 13 mph, with gusts as high as 36 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of rain and snow showers before 8am, then a chance of snow showers between 8am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 44. Northwest wind 10 to 13 mph, with gusts as high as 34 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 44 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30. Northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 21 mph.

    Low: 30 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of snow showers before 2pm, then a slight chance of rain showers. Partly sunny, with a high near 56. Light south wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 37 mph. Chance of precipitation is 20%.

    High: 56 °F

    Slight Chance
    Snow Showers
    then Slight
    Chance
    Rain/Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 34. West wind around 10 mph, with gusts as high as 37 mph.

    Low: 34 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Overnight
A chance of showers. Cloudy, with a low around 37. Northwest wind 10 to 13 mph, with gusts as high as 36 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of rain and snow showers before 8am, then a chance of snow showers between 8am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 44. Northwest wind 10 to 13 mph, with gusts as high as 34 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Mostly clear, with a low around 30. Northwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 21 mph.
Friday
A slight chance of snow showers before 2pm, then a slight chance of rain showers. Partly sunny, with a high near 56. Light south wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 37 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 34. West wind around 10 mph, with gusts as high as 37 mph.
Saturday
Sunny, with a high near 52.
Saturday Night
Mostly cloudy, with a low around 35.
Sunday
Mostly cloudy, with a high near 57.
Sunday Night
Showers likely, mainly after 2am. Cloudy, with a low around 48. Chance of precipitation is 60%.
Monday
Showers. High near 65. Chance of precipitation is 80%.
Monday Night
Showers likely. Mostly cloudy, with a low around 24. Chance of precipitation is 60%.
Tuesday
Mostly cloudy, with a high near 36.
Tuesday Night
Partly cloudy, with a low around 20.
Wednesday
Mostly sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Shirleysburg PA
 40.31°N 77.88°W (Elev. 600 ft)
Last Update:
3:06 am EDT Mar 12, 2026
Forecast Valid:
4am EDT Mar 12, 2026-6pm EDT Mar 18, 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