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

Hazardous Weather Outlook

Current conditions at

Johnstown - Cambria County Airport (KJST)

Lat: 40.31°NLon: 78.83°WElev: 2274ft.

Fair

82°F

28°C

Humidity	56%
Wind Speed	W 9 mph
Barometer	30.10 in (1017.2 mb)
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Heat Index	84°F (29°C)
Last update	4 Jul 10:54 am EDT

More Information:

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

Extended Forecast for

2 Miles S Patton PA

Independence Day
High: 89 °F
Severe
Thunderstorms
Tonight
Low: 66 °F
Severe
Thunderstorms
Sunday
High: 82 °F
Chance
Showers then
Heavy Rain
Sunday Night
Low: 64 °F
Heavy Rain
Monday
High: 79 °F
Showers then
T-storms
Monday Night
Low: 63 °F
T-storms
Likely then
Showers
Likely
Tuesday
High: 78 °F
Showers
Likely
Tuesday Night
Low: 63 °F
Showers
Likely then
Chance
Showers
Wednesday
High: 80 °F
Chance
Showers

Detailed Forecast

Independence Day

A slight chance of showers, then a chance of showers and thunderstorms after 4pm. Some of the storms could be severe. Partly sunny, with a high near 89. West wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

A chance of showers and thunderstorms. Some of the storms could be severe. Mostly cloudy, with a low around 66. Northwest wind around 6 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 before 11am, then a chance of showers and thunderstorms between 11am and 4pm, then showers likely and possibly a thunderstorm after 4pm. Some of the storms could produce heavy rainfall. Mostly cloudy, with a high near 82. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 64. Southeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Monday

Showers and possibly a thunderstorm. High near 79. South wind 5 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Monday 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 63. Chance of precipitation is 70%. New rainfall 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 78. Chance of precipitation is 60%.

Tuesday Night

Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

Wednesday

A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 30%.

Wednesday Night

Mostly cloudy, with a low around 64.

Thursday

A chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 40%.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.