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.

Overcast

53°F

12°C

Humidity 77%
Wind Speed SE 12 mph
Barometer 29.95 in (1015.3 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 15 Mar 10:53 pm EDT
Extended Forecast for

Greencastle PA

  • Tonight

    Tonight: Showers, mainly before 5am. Temperature rising to around 59 by 5am. Southeast wind 11 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F⇑

    Showers

  • Monday

    Monday: Showers and possibly a thunderstorm. Some of the storms could be severe and produce heavy rainfall. High near 70. Breezy, with a south wind 14 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 70 °F

    Severe
    Thunderstorms
    then Severe
    Thunderstorms
    and Breezy

  • Monday Night

    Monday Night: Rain showers before 11pm, then snow showers likely between 11pm and 2am. The rain could be heavy at times. Low around 26. West wind 13 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Rain/Snow
    then Snow
    Showers
    Likely

  • Tuesday

    Tuesday: Partly sunny, with a high near 35. West wind 11 to 16 mph, with gusts as high as 29 mph.

    High: 35 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 21. West wind 5 to 9 mph, with gusts as high as 20 mph.

    Low: 21 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 39.

    High: 39 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 47.

    High: 47 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers, mainly before 5am. Temperature rising to around 59 by 5am. Southeast wind 11 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers and possibly a thunderstorm. Some of the storms could be severe and produce heavy rainfall. High near 70. Breezy, with a south wind 14 to 20 mph, with gusts as high as 34 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
Rain showers before 11pm, then snow showers likely between 11pm and 2am. The rain could be heavy at times. Low around 26. West wind 13 to 15 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Tuesday
Partly sunny, with a high near 35. West wind 11 to 16 mph, with gusts as high as 29 mph.
Tuesday Night
Partly cloudy, with a low around 21. West wind 5 to 9 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 39.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
Mostly cloudy, with a high near 47.
Thursday Night
Mostly cloudy, with a low around 35.
Friday
Partly sunny, with a high near 58.
Friday Night
A chance of showers. Mostly cloudy, with a low around 42. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 59.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Mostly sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Greencastle PA
 39.78°N 77.74°W (Elev. 548 ft)
Last Update:
8:06 pm EDT Mar 15, 2026
Forecast Valid:
11pm EDT Mar 15, 2026-6pm EDT Mar 22, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation