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.

A Few Clouds

22°F

-6°C

Humidity 57%
Wind Speed W 9 mph
Barometer 29.90 in (1014.6 mb)
Dewpoint 9°F (-13°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 18 Jan 2:53 pm EST
Extended Forecast for

Waterfall PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 17. Calm wind.

    Low: 17 °F

    Mostly Cloudy

  • M.L.King Day

    M.L.King Day: Partly sunny, with a high near 32. Light south wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 33 mph.

    High: 32 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 7. Wind chill values as low as zero. West wind 6 to 8 mph, with gusts as high as 34 mph.

    Low: 7 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 21. Wind chill values as low as zero. West wind 6 to 8 mph, with gusts as high as 24 mph.

    High: 21 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 7. Calm wind.

    Low: 7 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 14.

    Low: 14 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 17. Calm wind.
M.L.King Day
Partly sunny, with a high near 32. Light south wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 33 mph.
Monday Night
Mostly clear, with a low around 7. Wind chill values as low as zero. West wind 6 to 8 mph, with gusts as high as 34 mph.
Tuesday
Sunny, with a high near 21. Wind chill values as low as zero. West wind 6 to 8 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly clear, with a low around 7. Calm wind.
Wednesday
Partly sunny, with a high near 36.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Partly sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 14.
Friday
Partly sunny, with a high near 32.
Friday Night
Mostly cloudy, with a low around 15.
Saturday
A chance of snow showers. Partly sunny, with a high near 29. Chance of precipitation is 30%.
Saturday Night
A chance of snow showers. Mostly cloudy, with a low around 10. Chance of precipitation is 30%.
Sunday
A chance of snow showers. Partly sunny, with a high near 21. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Waterfall PA
 40.13°N 78.06°W (Elev. 942 ft)
Last Update:
1:39 pm EST Jan 18, 2026
Forecast Valid:
3pm EST Jan 18, 2026-6pm EST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation