Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast from parts of the central High Plains into the Upper Midwest, and across parts of the Northeast. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

A Few Clouds

85°F

29°C

Humidity 65%
Wind Speed S 8 mph
Barometer 30.12 in (1018.5 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 30 Jun 1:53 pm EDT
Extended Forecast for

Altoona PA

Heat Advisory July 1, 12:00pm until July 3, 08:00pm
Click here for hazard details and duration
Heat Advisory
  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 91. South wind around 6 mph.

    High: 91 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 71. Light south wind.

    Low: 71 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 104. West wind 5 to 7 mph.

    High: 95 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 72. Light west wind.

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Independence Day

    Independence Day: A chance of showers and thunderstorms after 2pm.  Mostly sunny and hot, with a high near 92. Chance of precipitation is 40%.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 91. South wind around 6 mph.
Tonight
Partly cloudy, with a low around 71. Light south wind.
Wednesday
Sunny and hot, with a high near 95. Heat index values as high as 104. West wind 5 to 7 mph.
Wednesday Night
Mostly clear, with a low around 72. Light west wind.
Thursday
Sunny and hot, with a high near 97. Calm wind becoming west 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 73.
Friday
Sunny and hot, with a high near 97.
Friday Night
Partly cloudy, with a low around 71.
Independence Day
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 91. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Altoona PA
 40.51°N 78.4°W (Elev. 1198 ft)
12:46 pm EDT Jun 30, 2026
2pm EDT Jun 30, 2026-6pm EDT Jul 6, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database