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Hazardous Weather Conditions

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Light Rain

49°F

9°C

Humidity 74%
Wind Speed W 17 mph
Barometer 29.82 in (1010.1 mb)
Dewpoint 41°F (5°C)
Visibility 8.00 mi
Wind Chill43°F (6°C)
Last update 30 Apr 1:53 pm EDT
Extended Forecast for

4 Miles WNW Williamsburg PA

Frost Advisory May 1, 12:00am until May 1, 08:00am
Click here for hazard details and duration
Frost Advisory

  • This Afternoon

    This Afternoon: A chance of showers, mainly before 4pm. Partly sunny, with a high near 59. Northwest wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    High: 59 °F

    Chance
    Showers

  • Tonight

    Tonight: Areas of frost after 4am. Otherwise, partly cloudy, with a low around 36. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 36 °F

    Partly Cloudy
    then Areas
    Frost

  • Friday

    Friday: Showers likely, mainly after 2pm. Areas of frost before 8am. Otherwise, partly sunny, with a high near 57. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely, mainly before 8pm. Patchy frost after 5am. Otherwise, mostly cloudy, with a low around 37. Light west wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, mainly after 2pm. Patchy frost before 7am. Otherwise, partly sunny, with a high near 57. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 30%.

    High: 57 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 8pm. Areas of frost after 3am. Otherwise, partly cloudy, with a low around 33. Chance of precipitation is 30%.

    Low: 33 °F

    Chance
    Showers then
    Areas Frost

  • Sunday

    Sunday: Areas of frost before 8am. Otherwise, sunny, with a high near 59.

    High: 59 °F

    Areas Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Monday

    Monday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 68. Chance of precipitation is 50%.

    High: 68 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A chance of showers, mainly before 4pm. Partly sunny, with a high near 59. Northwest wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Tonight
Areas of frost after 4am. Otherwise, partly cloudy, with a low around 36. Northwest wind 5 to 7 mph becoming calm in the evening.
Friday
Showers likely, mainly after 2pm. Areas of frost before 8am. Otherwise, partly sunny, with a high near 57. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers likely, mainly before 8pm. Patchy frost after 5am. Otherwise, mostly cloudy, with a low around 37. Light west wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of showers, mainly after 2pm. Patchy frost before 7am. Otherwise, partly sunny, with a high near 57. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 30%.
Saturday Night
A chance of showers before 8pm. Areas of frost after 3am. Otherwise, partly cloudy, with a low around 33. Chance of precipitation is 30%.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 41.
Monday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 68. Chance of precipitation is 50%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. Chance of precipitation is 40%.
Tuesday
A chance of showers. Partly sunny, with a high near 73. Chance of precipitation is 50%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 40%.
Wednesday
Showers likely. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Williamsburg PA
 40.48°N 78.29°W (Elev. 988 ft)
Last Update:
2:05 pm EDT Apr 30, 2026
Forecast Valid:
2pm EDT Apr 30, 2026-6pm EDT May 6, 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