Heat Wave and Severe Thunderstorms this Independence Day

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Midwest, and Mid-Atlantic. Numerous temperature records are expected. Clusters of severe thunderstorms will move across parts of the Allegheny Plateau into Mid Atlantic this Independence Day, with potential for widespread damaging winds. Additional severe thunderstorms in the Great Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

A Few Clouds

91°F

33°C

Humidity	47%
Wind Speed	SW 8 mph
Barometer	29.97 in (1013.4 mb)
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Heat Index	95°F (35°C)
Last update	4 Jul 3:53 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

2 Miles N Orbisonia PA

Severe T-storm Watch until July 4, 11:00pm

Heat Advisory July 4, 04:45pm until July 4, 08:00pm

Click here for hazard details and duration

Severe T-storm Watch

Heat Advisory

Severe T-storm Watch until July 4, 11:00pm
Heat Advisory July 4, 04:45pm until July 4, 08:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Independence Day
High: 97 °F
Severe
Thunderstorms
Tonight
Low: 69 °F
Severe
Thunderstorms
Sunday
High: 89 °F
Chance
Showers then
Showers
Sunday Night
Low: 65 °F
Showers and
Patchy Fog
Monday
High: 80 °F
Showers
Likely and
Patchy Fog
then Showers
Monday Night
Low: 62 °F
Showers
Tuesday
High: 81 °F
Showers
Likely
Tuesday Night
Low: 62 °F
Showers
Likely then
Mostly Cloudy

Detailed Forecast

Independence Day

Isolated showers and thunderstorms. Some of the storms could be severe. Mostly sunny and hot, with a high near 97. Heat index values as high as 100. West wind 3 to 6 mph. Chance of precipitation is 20%.

Tonight

Scattered showers and thunderstorms, mainly before midnight. Some of the storms could be severe. Cloudy, then gradually becoming partly cloudy, with a low around 69. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

A chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 89. Calm wind. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

Showers and possibly a thunderstorm before 2am, then showers likely. Patchy fog after 10pm. Low around 65. Calm wind. Chance of precipitation is 100%. New rainfall amounts between three quarters and one inch possible.

Monday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. Patchy fog before 11am. High near 80. Calm wind. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Monday Night

Showers and possibly a thunderstorm. Low around 62. 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, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.

Tuesday Night

Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.

Wednesday

Mostly sunny, with a high near 85.

Wednesday Night

Partly cloudy, with a low around 63.

Thursday

Mostly sunny, with a high near 90.

Thursday Night

Partly cloudy, with a low around 66.