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.

Fair

98°F

37°C

Humidity	35%
Wind Speed	SW 9 mph
Barometer	29.85 in (1010.5 mb)
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Heat Index	102°F (39°C)
Last update	4 Jul 5:56 pm EDT

More Information:

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

Extended Forecast for

4 Miles WSW Newville PA

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

Extreme Heat Warning July 4, 06:08pm until July 4, 08:00pm

Click here for hazard details and duration

...

Severe T-storm Watch until July 4, 11:00pm
Extreme Heat Warning July 4, 06:08pm until July 4, 08:00pm
NOW: Multiple hazards in effect
Click HERE for Details
Tonight
Low: 70 °F
Severe
Thunderstorms
Sunday
High: 90 °F
Slight Chance
Showers then
T-storms
Sunday Night
Low: 66 °F
Showers and
Patchy Fog
Monday
High: 79 °F
Showers and
Patchy Fog
Monday Night
Low: 63 °F
Showers
Tuesday
High: 80 °F
Chance
Showers then
Showers
Likely
Tuesday Night
Low: 63 °F
Showers
Likely then
Mostly Cloudy
Wednesday
High: 84 °F
Mostly Sunny

Detailed Forecast

Tonight

Scattered showers and thunderstorms, mainly before 1am. Some of the storms could be severe. Cloudy, then gradually becoming partly cloudy, with a low around 70. West wind 5 to 7 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

Showers and thunderstorms, mainly before 5pm, then showers and possibly a thunderstorm after 5pm. High near 90. Light and variable wind. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Sunday Night

Showers and thunderstorms before 3am, then showers and possibly a thunderstorm between 3am and 4am, then a chance of showers and thunderstorms after 4am. Patchy fog after midnight. Low around 66. Light and variable wind. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

Monday

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 7am. Patchy fog before 11am. High near 79. Light east 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 63. Light northeast wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

Tuesday

A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

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

Wednesday

Mostly sunny, with a high near 84.

Wednesday Night

Partly cloudy, with a low around 64.

Thursday

Mostly sunny, with a high near 89.

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%.