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

Critical Fire Weather in the Plains; Unseasonably Warm in the Southwest and Southern U.S.

Unseasonably warm temperatures continue through the weekend across the Southwest and southern U.S., with more than 100 record or near record maximum temperatures forecast through the rest of the week and over the weekend. Elevated to critical fire weather conditions will persist across the Plains and Southeast U.S. this weekend. Read More >

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Fair

43°F

6°C

Humidity 37%
Wind Speed NW 15 G 22 mph
Barometer 30.49 in (1034.0 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 28 Mar 12:53 pm EDT
Extended Forecast for

3 Miles N Mercersburg PA

  • This Afternoon

    This Afternoon: Sunny, with a high near 47. Northwest wind around 11 mph, with gusts as high as 23 mph.

    High: 47 °F

    Sunny

  • Tonight

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

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 62. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 62 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 42. Light south wind.

    Low: 42 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 68. Southwest wind 3 to 8 mph.

    High: 68 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of showers, mainly after 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.

    Low: 52 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers before 8am. Mostly sunny, with a high near 79. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

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

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers likely, mainly after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 70%.

    High: 78 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 47. Northwest wind around 11 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 29. Calm wind.
Sunday
Mostly sunny, with a high near 62. Calm wind becoming south 5 to 8 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 42. Light south wind.
Monday
Partly sunny, with a high near 68. Southwest wind 3 to 8 mph.
Monday Night
A chance of showers, mainly after 2am. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.
Tuesday
A chance of showers before 8am. Mostly sunny, with a high near 79. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Showers likely, mainly after 2pm. Partly sunny, with a high near 78. Chance of precipitation is 70%.
Wednesday Night
Showers likely, mainly before 2am. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Thursday
A chance of showers. Mostly cloudy, with a high near 55. Chance of precipitation is 50%.
Thursday Night
Showers likely. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
Friday
Showers likely. Mostly cloudy, with a high near 50. Chance of precipitation is 70%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Mercersburg PA
 39.87°N 77.9°W (Elev. 564 ft)
Last Update:
12:11 pm EDT Mar 28, 2026
Forecast Valid:
1pm EDT Mar 28, 2026-6pm EDT Apr 3, 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