On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Risk of severe thunderstorms from Florida to the Great Lake States

Storms may contain strong, damaging winds and hail. Locally heavy rain is also possible in southern California and the Desert Southwest. Very hot conditions continue in the lower Mississippi Valley and the Deep South.
Read More...

Hazardous Weather Conditions

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Fair

82°F

28°C

Humidity 74%
Wind Speed S 9 mph
Barometer 29.95 in (1014.4 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 29 Jul 9:53 pm EDT
Extended Forecast for

3 Miles NW Mercersburg PA

  • Tonight

    Tonight: A slight chance of showers, with thunderstorms also possible after 11pm.  Mostly cloudy, with a low around 72. Light southwest wind.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 72 °F

  • Thursday

    Thursday: A chance of showers and thunderstorms.  Mostly sunny, with a high near 87. West wind 5 to 9 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    High: 87 °F

  • Thursday
    Night

    Thursday Night: Clear, with a low around 66. West wind 5 to 7 mph.

    Clear

    Low: 66 °F

  • Friday

    Friday: Sunny, with a high near 87. Northwest wind 3 to 7 mph.

    Sunny

    High: 87 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 64. West wind 3 to 5 mph.

    Mostly Clear

    Low: 64 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 87.

    Mostly Sunny

    High: 87 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 63.

    Partly Cloudy

    Low: 63 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 87.

    Mostly Sunny

    High: 87 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 63.

    Partly Cloudy

    Low: 63 °F

Detailed Forecast

Tonight
A slight chance of showers, with thunderstorms also possible after 11pm. Mostly cloudy, with a low around 72. Light southwest wind. Chance of precipitation is 20%.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87. West wind 5 to 9 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Clear, with a low around 66. West wind 5 to 7 mph.
Friday
Sunny, with a high near 87. Northwest wind 3 to 7 mph.
Friday Night
Mostly clear, with a low around 64. West wind 3 to 5 mph.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 63.
Monday
Mostly sunny, with a high near 88.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Partly sunny, with a high near 87.
  Click Map For Forecast
Point Forecast:
3 Miles NW Mercersburg PA
 39.87°N 77.95°W (Elev. 997 ft)
10:00 pm EDT Jul 29, 2015
10pm EDT Jul 29, 2015-6pm EDT Aug 5, 2015
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database