National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Light Rain Fog/Mist

61°F

16°C

Humidity 97%
Wind Speed Calm
Barometer 29.78 in (1008.8 mb)
Dewpoint 60°F (16°C)
Visibility 5.00 mi
Last update 27 Mar 4:53 am EDT
Extended Forecast for

3 Miles SSW Mercersburg PA

  • Overnight

    Overnight: Rain. Steady temperature around 61. Northwest wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 61 °F

    Rain

  • Friday

    Friday: Rain, mainly before 10am. Temperature falling to around 49 by 11am. North wind 6 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F⇓

    Rain then
    Chance Rain

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30. Calm wind becoming northwest 5 to 9 mph after midnight. Winds could gust as high as 21 mph.

    Low: 30 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 46. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29. Calm wind.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 65.

    High: 65 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of rain. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.

    Low: 52 °F

    Chance Rain

Detailed Forecast

Overnight
Rain. Steady temperature around 61. Northwest wind around 8 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain, mainly before 10am. Temperature falling to around 49 by 11am. North wind 6 to 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Partly cloudy, with a low around 30. Calm wind becoming northwest 5 to 9 mph after midnight. Winds could gust as high as 21 mph.
Saturday
Sunny, with a high near 46. Northwest wind 8 to 10 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 29. Calm wind.
Sunday
Mostly sunny, with a high near 61.
Sunday Night
Mostly cloudy, with a low around 43.
Monday
Partly sunny, with a high near 65.
Monday Night
A chance of rain. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 74. Chance of precipitation is 40%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Wednesday
A chance of rain. Mostly sunny, with a high near 82. Chance of precipitation is 40%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Thursday
A chance of rain. Partly sunny, with a high near 76. Chance of precipitation is 40%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Mercersburg PA
 39.78°N 77.94°W (Elev. 551 ft)
Last Update:
5:31 am EDT Mar 27, 2026
Forecast Valid:
5am EDT Mar 27, 2026-6pm EDT Apr 2, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation