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Hazardous Weather Conditions
Current conditions at
Altoona - Blair County Airport (KAOO)
Lat: 40.3°NLon: 78.32°WElev: 1467ft.
Fair
59°F
15°C
| Humidity | 93% |
| Wind Speed | SW 5 mph |
| Barometer | 29.95 in (1013.6 mb) |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 21 Jun 6:53 am EDT |
Extended Forecast for
4 Miles N Williamsburg PA
Dense Fog Advisory until June 21, 08:00am
NOW until 8:00am Sun

Dense Fog Advisory
Today

High: 79 °F
Mostly Sunny
Tonight
Low: 58 °F
Mostly Cloudy
then Chance
RainMonday

High: 76 °F
Heavy Rain
Monday Night

Low: 60 °F
Showers
Tuesday
High: 79 °F
Chance
Showers then
Mostly SunnyTuesday Night

Low: 54 °F
Mostly Clear
Wednesday

High: 81 °F
Sunny
Wednesday Night

Low: 58 °F
Mostly Clear
Detailed Forecast
Today
Mostly sunny, with a high near 79. Northwest wind 3 to 7 mph.
Tonight
A chance of rain, mainly after 3am. Mostly cloudy, with a low around 58. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain likely, then periods of rain and possibly a thunderstorm after 11am. Some of the storms could produce heavy rainfall. High near 76. Light and variable wind becoming south around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 60. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers before 8am. Partly sunny, with a high near 79. North wind 5 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 50%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 30%.
Friday Night
A chance of thunderstorms. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 83.
Additional Forecasts and Information
Basemap Options
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ABOUT THIS FORECAST
Point Forecast:
4 Miles N Williamsburg PA
40.52°N 78.2°W (Elev. 997 ft)
40.52°N 78.2°W (Elev. 997 ft)
6:11 am EDT Jun 21, 2026
7am EDT Jun 21, 2026-6pm EDT Jun 27, 2026



