Fire Weather Concerns in the Intermountain West into the Plains

Anomalously warm, dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the Intermountain West into the Plains though early this week. Another elevated risk is possible across the central Appalachians. A rapid warm-up is in the forecast beginning Monday across the central and eastern U.S.. Read More >

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Partly Cloudy

56°F

13°C

Humidity 33%
Wind Speed S 14 mph
Barometer 30.29 in (1026.9 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 29 Mar 8:53 pm EDT
Extended Forecast for

3 Miles SSW Mercersburg PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 45. South wind around 6 mph.

    Low: 45 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers, mainly before 4pm.  Partly sunny, with a high near 68. South wind 6 to 9 mph.  Chance of precipitation is 30%.

    High: 68 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers after 8pm.  Mostly cloudy, with a low around 56. Light south wind.  Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 56 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, mainly after 2pm.  Partly sunny, with a high near 80. Southwest wind 5 to 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 80 °F

    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 8pm.  Mostly cloudy, with a low around 62. South wind around 7 mph.  Chance of precipitation is 30%.

    Low: 62 °F

    Chance
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm.  Partly sunny, with a high near 81. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am.  Mostly cloudy, with a low around 51. Chance of precipitation is 60%.

    Low: 51 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers.  Mostly cloudy, with a high near 65. Chance of precipitation is 50%.

    High: 65 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers.  Mostly cloudy, with a low around 50. Chance of precipitation is 50%.

    Low: 50 °F

    Chance
    Showers

Detailed Forecast

Tonight
Mostly cloudy, with a low around 45. South wind around 6 mph.
Monday
A chance of showers, mainly before 4pm. Partly sunny, with a high near 68. South wind 6 to 9 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 56. Light south wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
A chance of showers, mainly after 2pm. Partly sunny, with a high near 80. Southwest wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 62. South wind around 7 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Thursday
A chance of showers. Mostly cloudy, with a high near 65. Chance of precipitation is 50%.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 50%.
Friday
A chance of showers. Mostly cloudy, with a high near 70. Chance of precipitation is 50%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.
Saturday
A chance of showers. Partly sunny, with a high near 73. Chance of precipitation is 50%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Sunday
Showers likely. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Mercersburg PA
 39.78°N 77.94°W (Elev. 551 ft)
8:06 pm EDT Mar 29, 2026
9pm EDT Mar 29, 2026-6pm EDT Apr 5, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database