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

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Thunderstorm Heavy Rain Fog/Mist and Windy

73°F

23°C

Humidity	94%
Wind Speed	W 33 G 63 mph
Barometer	29.94 in (1013.5 mb)
Dewpoint	71°F (22°C)
Visibility	1.00 mi
Last update	4 Jul 6:56 pm EDT

More Information:

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

Extended Forecast for

2 Miles S Mechanicsburg PA

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

Click here for hazard details and duration

...

Severe T-storm Watch until July 4, 11:00pm
NOW until 11:00pm Sat
Severe T-storm Watch
Tonight
Low: 70 °F
Severe
Thunderstorms
and Patchy
Fog
Sunday
High: 89 °F
Partly Sunny
then Showers
Likely
Sunday Night
Low: 66 °F
Showers
Monday
High: 78 °F
Showers then
T-storms
Monday Night
Low: 63 °F
T-storms then
Showers
Tuesday
High: 78 °F
Showers
Likely then
Chance
T-storms
Tuesday Night
Low: 63 °F
Chance
T-storms then
Mostly Cloudy
Wednesday
High: 82 °F
Mostly Sunny

Detailed Forecast

Tonight

Scattered showers and thunderstorms, mainly before 1am. Some of the storms could be severe. Patchy fog after 5am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 70. West wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 89. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

Showers and possibly a thunderstorm. Low around 66. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Monday

Showers and possibly a thunderstorm. High near 78. East wind 3 to 6 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Monday Night

Showers and possibly a thunderstorm. Low around 63. East wind 3 to 6 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Tuesday

Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 78. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.

Wednesday

Mostly sunny, with a high near 82.

Wednesday Night

Partly cloudy, with a low around 65.

Thursday

Mostly sunny, with a high near 88.

Thursday Night

Partly cloudy, with a low around 68.

Friday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 88. Chance of precipitation is 60%.