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

Harrisburg, Capital City Airport (KCXY)

Lat: 40.22°NLon: 76.86°WElev: 335ft.

Fair

100°F

38°C

Humidity	34%
Wind Speed	SW 13 G 22 mph
Barometer	29.98 in (1014.9 mb)
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Heat Index	105°F (41°C)
Last update	2 Jul 5:56 pm EDT

More Information:

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

Extended Forecast for

Mount Holly Springs PA

Heat Advisory July 3, 08:00pm until July 4, 08:00pm

Extreme Heat Warning July 2, 06:36pm until July 3, 08:00pm

Click here for hazard details and duration

Heat Advisory

Extreme Heat Warning

Extreme Heat Warning July 2, 06:36pm until July 3, 08:00pm
NOW until 8:00pm Fri
Extreme Heat Warning
Tonight
Low: 78 °F
Mostly Clear
Friday
High: 99 °F
Sunny then
Slight Chance
T-storms
Friday Night
Low: 77 °F
Partly Cloudy
Independence Day
High: 98 °F
Partly Sunny
then Chance
T-storms
Saturday Night
Low: 72 °F
Chance
T-storms then
Chance
Showers
Sunday
High: 91 °F
Slight Chance
Showers then
Showers
Likely
Sunday Night
Low: 69 °F
Showers
Likely
Monday
High: 81 °F
Showers

Detailed Forecast

Tonight

Mostly clear, with a low around 78. West wind around 5 mph becoming calm in the evening.

Friday

A slight chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99. Heat index values as high as 108. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 20%.

Friday Night

Partly cloudy, with a low around 77. West wind around 5 mph becoming calm in the evening.

Independence Day

A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 104. Calm wind becoming west 5 to 8 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 30%.

Saturday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

Sunday

A slight chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 91. 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 likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.

Monday

Showers likely, then showers and possibly a thunderstorm after 2pm. High near 81. Chance of precipitation is 80%.

Monday Night

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

Tuesday

A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 40%.

Tuesday Night

A chance of thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

Wednesday

Partly sunny, with a high near 82.