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.

Above-normal temperatures continue across much of U.S.

Temperatures will once again be above-normal, in some cases by as much as 15-20 degrees, across much of the contiguous U.S. on Wednesday. Afternoon highs are forecast to reach into the mid to upper 90s across the Great Plains, as well as parts of the southern U.S. and mid-Atlantic. Take precautions if you plan to spend extended time outside.
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Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Fair

78°F

26°C

Humidity 69%
Wind Speed Calm
Barometer 29.96 in (1015.0 mb)
Dewpoint 67°F (19°C)
Visibility 8.00 mi
Heat Index80°F (27°C)
Last update 2 Sep 6:53 pm EDT
Extended Forecast for

3 Miles NW Mercersburg PA

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm.  Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 68. West wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    Showers and
    Patchy Fog
    then Patchy
    Fog

    Low: 68 °F

  • Thursday

    Thursday: A slight chance of showers and thunderstorms after 2pm.  Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 88. Northwest wind 3 to 6 mph.  Chance of precipitation is 20%.

    Patchy Fog
    then Slight
    Chance
    T-storms

    High: 88 °F

  • Thursday
    Night

    Thursday Night: A slight chance of showers and thunderstorms before 2am.  Mostly cloudy, with a low around 68. North wind around 5 mph.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 68 °F

  • Friday

    Friday: A chance of showers and thunderstorms, mainly after 2pm.  Partly sunny, with a high near 84. Northeast wind 3 to 6 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    High: 84 °F

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms, mainly before 8pm.  Mostly cloudy, with a low around 64. East wind around 5 mph.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Chance
    T-storms

    Low: 64 °F

  • Saturday

    Saturday: Mostly sunny, with a high near 82.

    Mostly Sunny

    High: 82 °F

  • Saturday
    Night

    Saturday Night: Partly cloudy, with a low around 59.

    Partly Cloudy

    Low: 59 °F

  • Sunday

    Sunday: Mostly sunny, with a high near 84.

    Mostly Sunny

    High: 84 °F

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 61.

    Mostly Clear

    Low: 61 °F

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 8pm. Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 68. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers and thunderstorms after 2pm. Patchy fog before 10am. Otherwise, mostly sunny, with a high near 88. Northwest wind 3 to 6 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 68. North wind around 5 mph. Chance of precipitation is 20%.
Friday
A chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 84. Northeast wind 3 to 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 64. East wind around 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
Mostly sunny, with a high near 82.
Saturday Night
Partly cloudy, with a low around 59.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Mostly clear, with a low around 61.
Labor Day
Sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 63.
Wednesday
Partly sunny, with a high near 84.
  Click Map For Forecast
Point Forecast:
3 Miles NW Mercersburg PA
 39.87°N 77.95°W (Elev. 997 ft)
7:11 pm EDT Sep 2, 2015
7pm EDT Sep 2, 2015-6pm EDT Sep 9, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database