National Weather Service

Hazardous Weather Conditions

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Fair

76°F

24°C

Humidity	67%
Wind Speed	NW 7 mph
Barometer	30.01 in (1016.2 mb)
Dewpoint	64°F (18°C)
Visibility	10.00 mi
Heat Index	78°F (26°C)
Last update	4 Jul 4:53 am EDT

More Information:

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

Extended Forecast for

Chambersburg PA

Extreme Heat Warning July 4, 05:02am until July 4, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning July 4, 05:02am until July 4, 08:00pm
NOW until 8:00pm Sat
Extreme Heat Warning
Independence Day
High: 100 °F
Mostly Sunny
then Severe
Thunderstorms
Tonight
Low: 72 °F
Severe
Thunderstorms
Sunday
High: 91 °F
Slight Chance
Showers then
Heavy Rain
Sunday Night
Low: 68 °F
Heavy Rain
and Patchy
Fog
Monday
High: 83 °F
Showers
Monday Night
Low: 66 °F
Showers
Tuesday
High: 82 °F
Chance
Showers then
Chance
T-storms
Tuesday Night
Low: 66 °F
Chance
T-storms then
Chance
Showers

Detailed Forecast

Independence Day

A slight chance of showers between 3pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Some of the storms could be severe. Mostly sunny and hot, with a high near 100. Heat index values as high as 109. Calm wind becoming west 5 to 8 mph in the afternoon. Chance of precipitation is 20%.

Tonight

A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 2am. Some of the storms could be severe. Mostly cloudy, with a low around 72. South wind around 5 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 and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 91. 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 before 2am, then showers likely. Some of the storms could produce heavy rainfall. Patchy fog after 11pm. Low around 68. Light east wind. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Monday

Showers likely, then showers and possibly a thunderstorm after 11am. High near 83. Light southeast wind. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Monday Night

Showers and possibly a thunderstorm before 2am, then a chance of showers. 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.

Tuesday

A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 50%.

Tuesday Night

A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

Wednesday

A chance of showers after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 30%.

Wednesday Night

A chance of showers before 8pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.

Thursday

A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 30%.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.

Friday

A chance of showers and thunderstorms. Partly sunny, with a high near 91. Chance of precipitation is 40%.