Dangerous Heat Wave Continues; Areas of Severe Thunderstorms Today

Dangerous, record-breaking heat will continue across most of the central and eastern U.S through Friday then focusing on the eastern U.S. through the Independence Day weekend. Peak heat indices of up to 115 degrees are possible. Strong to severe thunderstorms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians today. Read More >

Hazardous Weather Conditions

Current conditions at

Altoona - Blair County Airport (KAOO)

Lat: 40.3°NLon: 78.32°WElev: 1467ft.

Fair

92°F

33°C

Humidity	47%
Wind Speed	W 10 mph
Barometer	30.10 in (1017.7 mb)
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Heat Index	97°F (36°C)
Last update	2 Jul 4:53 pm EDT

More Information:

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

Extended Forecast for

Defiance PA

Extreme Heat Warning July 2, 05:35pm until July 3, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning July 2, 05:35pm until July 3, 08:00pm
NOW until 8:00pm Fri
Extreme Heat Warning
Tonight
Low: 74 °F
Mostly Clear
Friday
High: 96 °F
Sunny then
Slight Chance
T-storms
Friday Night
Low: 73 °F
Partly Cloudy
Independence Day
High: 93 °F
Mostly Sunny
then Slight
Chance
T-storms
Saturday Night
Low: 69 °F
Chance
T-storms then
Chance
Showers
Sunday
High: 88 °F
Chance
Showers then
T-storms
Likely
Sunday Night
Low: 67 °F
T-storms
Likely then
Showers
Likely
Monday
High: 80 °F
T-storms
Likely

Detailed Forecast

Tonight

Mostly clear, with a low around 74. West wind around 6 mph becoming calm in the evening.

Friday

A slight chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 96. Heat index values as high as 103. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 20%.

Friday Night

Partly cloudy, with a low around 73. Light west wind.

Independence Day

A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 93. Calm wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

Saturday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

A chance of showers, then showers and thunderstorms likely after 11am. Mostly cloudy, with a high near 88. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.

Monday

A chance of showers, then showers and thunderstorms likely after 8am. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.

Monday Night

Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

Tuesday

A chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 79. Chance of precipitation is 40%.

Tuesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.

Wednesday

A chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 30%.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 30%.

Thursday

A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 30%.