Dangerous Heat to Continue through the Holiday Weekend; Severe Storms on Friday from the Plains to the Mid-Atlantic

Dangerous, record-breaking heat will continue across most of the central and eastern U.S through Friday then focusing across the eastern U.S. through the Independence Day holiday weekend. Peak heat indices of up to 115 degrees are possible. Isolated to scattered severe thunderstorms are possible from the northern/central Plains into the Midwest, Ohio Valley, and Mid-Atlantic Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Fair

77°F

25°C

Humidity	82%
Wind Speed	W 7 mph
Barometer	30.18 in (1019.9 mb)
Dewpoint	71°F (22°C)
Visibility	9.00 mi
Heat Index	79°F (26°C)
Last update	3 Jul 7:54 am EDT

More Information:

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

Extended Forecast for

3 Miles NW Hollsopple PA

Heat Advisory July 3, 08:12am until July 3, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory July 3, 08:12am until July 3, 08:00pm
NOW until 8:00pm Fri
Heat Advisory
Today
High: 93 °F
Hot
Tonight
Low: 70 °F
Chance
T-storms then
Chance
Showers
Independence Day
High: 90 °F
Sunny then
Chance
T-storms
Saturday Night
Low: 68 °F
Showers
Likely
Sunday
High: 86 °F
Showers
Likely then
T-storms
Sunday Night
Low: 66 °F
T-storms then
Showers
Monday
High: 82 °F
Showers
Likely then
T-storms
Monday Night
Low: 65 °F
T-storms then
Chance
T-storms

Detailed Forecast

Today

Mostly sunny and hot, with a high near 93. Heat index values as high as 102. Calm wind becoming west 5 to 7 mph in the afternoon.

Tonight

A chance of showers and thunderstorms, mainly between midnight and 1am. Partly cloudy, with a low around 70. Light and variable wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Independence Day

A chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 90. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Showers and thunderstorms likely before 5am, then a chance of showers. Mostly cloudy, with a low around 68. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

Showers likely, then showers and possibly a thunderstorm after 11am. High near 86. Light and variable wind. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday Night

Showers and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Low around 66. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 82. Chance of precipitation is 90%.

Monday Night

Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Low around 65. Chance of precipitation is 80%.

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, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.

Wednesday

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

Wednesday Night

Partly cloudy, with a low around 63.

Thursday

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