Hazardous Weather Conditions
Current conditions at
Altoona - Blair County Airport (KAOO)
Lat: 40.3°NLon: 78.32°WElev: 1467ft.
Fog/Mist
60°F
16°C
| Humidity | 96% |
| Wind Speed | Calm |
| Barometer | 30.12 in (1019.3 mb) |
| Dewpoint | 59°F (15°C) |
| Visibility | 4.00 mi |
| Last update | 20 Aug 10:53 pm EDT |
Extended Forecast for
4 Miles NNE Williamsburg PA
Tonight

Low: 58 °F
Areas Fog
Friday
High: 80 °F
Patchy Fog
then SunnyFriday Night
Low: 62 °F
Patchy Fog
then Slight
Chance
T-storms and
Patchy FogSaturday
High: 79 °F
Chance
Showers and
Patchy Fog
then ShowersSaturday Night
Low: 62 °F
Showers and
Patchy Fog
then Chance
Showers and
Patchy FogSunday
High: 78 °F
Slight Chance
Showers then
Slight Chance
T-stormsSunday Night

Low: 57 °F
Mostly Clear
Monday

High: 76 °F
Mostly Sunny
Monday Night

Low: 54 °F
Mostly Clear
Detailed Forecast
Tonight
Areas of fog. Otherwise, partly cloudy, with a low around 58. Calm wind.
Friday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 80. Light and variable wind.
Friday Night
A slight chance of showers between 2am and 5am, then a slight chance of showers and thunderstorms after 5am. Patchy fog before 11pm, then patchy fog after midnight. Otherwise, increasing clouds, with a low around 62. Calm wind. Chance of precipitation is 20%.
Saturday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. Patchy fog before 11am. High near 79. Light southeast wind. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 11pm, then a chance of showers after 11pm. Patchy fog after 11pm. Low around 62. Calm wind. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A slight chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 78. Chance of precipitation is 20%.
Sunday Night
Mostly clear, with a low around 57.
Monday
Mostly sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Mostly sunny, with a high near 82.
Wednesday Night
Partly cloudy, with a low around 63.
Thursday
A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 30%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles NNE Williamsburg PA
40.51°N 78.17°W (Elev. 804 ft)
40.51°N 78.17°W (Elev. 804 ft)
8:11 pm EDT Aug 20, 2026
11pm EDT Aug 20, 2026-6pm EDT Aug 27, 2026



