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 92%
Wind Speed Calm
Barometer 29.54 in (1000.4 mb)
Dewpoint 40°F (4°C)
Visibility 9.00 mi
Last update 12 Nov 6:53 am EST
Extended Forecast for

4 Miles SW Williamsburg PA

  • Today

    Today: Rain. Patchy fog between 9am and 10am. High near 51. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 51 °F

    Rain and
    Patchy Fog
    then Rain
    Likely

  • Tonight

    Tonight: A chance of rain, mainly between 7pm and 4am. Mostly cloudy, with a low around 35. North wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Chance Rain

  • Friday

    Friday: A slight chance of rain showers and snow before noon, then a slight chance of rain showers between noon and 5pm, then a slight chance of rain and snow showers after 5pm. Mostly cloudy, with a high near 43. Northwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    High: 43 °F

    Slight Chance
    Rain/Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 29. Northwest wind 3 to 6 mph.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers after 1pm. Partly sunny, with a high near 45. West wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    High: 45 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 48.

    High: 48 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

Detailed Forecast

Today
Rain. Patchy fog between 9am and 10am. High near 51. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
A chance of rain, mainly between 7pm and 4am. Mostly cloudy, with a low around 35. North wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday
A slight chance of rain showers and snow before noon, then a slight chance of rain showers between noon and 5pm, then a slight chance of rain and snow showers after 5pm. Mostly cloudy, with a high near 43. Northwest wind around 10 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 29. Northwest wind 3 to 6 mph.
Saturday
A slight chance of showers after 1pm. Partly sunny, with a high near 45. West wind 6 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
Mostly cloudy, with a high near 48.
Sunday Night
Mostly cloudy, with a low around 32.
Monday
Partly sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 53.
Tuesday Night
Mostly clear, with a low around 26.
Wednesday
Sunny, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Williamsburg PA
 40.41°N 78.27°W (Elev. 1122 ft)
Last Update:
1:21 am EST Nov 12, 2026
Forecast Valid:
7am EST Nov 12, 2026-6pm EST Nov 18, 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