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Hazardous Weather Conditions

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Overcast

49°F

9°C

Humidity 69%
Wind Speed NW 8 mph
Barometer 29.87 in (1012.0 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill46°F (8°C)
Last update 1 May 7:53 pm EDT
Extended Forecast for

4 Miles WNW Williamsburg PA

Frost Advisory May 2, 12:00am until May 2, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Tonight

    Tonight: A chance of showers, mainly before midnight. Areas of frost after 5am. Otherwise, mostly cloudy, with a low around 35. Northwest wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Chance
    Showers

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, partly sunny, with a high near 56. Northwest wind 3 to 6 mph.

    High: 56 °F

    Areas Frost
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 4am. Otherwise, partly cloudy, with a low around 33. Northwest wind 3 to 6 mph.

    Low: 33 °F

    Partly Cloudy
    then Frost

  • Sunday

    Sunday: Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 59. West wind 5 to 10 mph, with gusts as high as 21 mph.

    High: 59 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers after 2am. Partly cloudy, with a low around 43. Southwest wind 3 to 5 mph. Chance of precipitation is 20%.

    Low: 43 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: A slight chance of showers, with thunderstorms also possible after 5pm. Mostly sunny, with a high near 70. Chance of precipitation is 20%.

    High: 70 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers after 8pm. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.

    Low: 53 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 40%.

    High: 79 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.

    Low: 55 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Tonight
A chance of showers, mainly before midnight. Areas of frost after 5am. Otherwise, mostly cloudy, with a low around 35. Northwest wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Areas of frost before 8am. Otherwise, partly sunny, with a high near 56. Northwest wind 3 to 6 mph.
Saturday Night
Widespread frost, mainly after 4am. Otherwise, partly cloudy, with a low around 33. Northwest wind 3 to 6 mph.
Sunday
Widespread frost, mainly before 7am. Otherwise, sunny, with a high near 59. West wind 5 to 10 mph, with gusts as high as 21 mph.
Sunday Night
A slight chance of showers after 2am. Partly cloudy, with a low around 43. Southwest wind 3 to 5 mph. Chance of precipitation is 20%.
Monday
A slight chance of showers, with thunderstorms also possible after 5pm. Mostly sunny, with a high near 70. Chance of precipitation is 20%.
Monday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 53. Chance of precipitation is 30%.
Tuesday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Tuesday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
Wednesday
Showers. High near 69. Chance of precipitation is 80%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.
Thursday
Showers likely. Mostly cloudy, with a high near 59. Chance of precipitation is 70%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 39. Chance of precipitation is 30%.
Friday
A chance of showers. Mostly sunny, with a high near 61. Chance of precipitation is 30%.
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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:
5:31 pm EDT May 1, 2026
Forecast Valid:
8pm EDT May 1, 2026-6pm EDT May 8, 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