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

Hazardous Weather Conditions

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Light Rain

55°F

13°C

Humidity 80%
Wind Speed NW 9 mph
Barometer 29.98 in (1015.7 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 17 Oct 2:53 am EDT
Extended Forecast for

2 Miles NNE Mercersburg PA

Freeze Warning October 18, 01:00am until October 18, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Overnight

    Overnight: Cloudy, with a low around 49. North wind around 11 mph, with gusts as high as 24 mph.

    Low: 49 °F

    Cloudy

  • Saturday

    Saturday: Cloudy through mid morning, then gradual clearing, with a high near 54. North wind 11 to 15 mph, with gusts as high as 26 mph.

    High: 54 °F

    Gradual
    Clearing

  • Saturday Night

    Saturday Night: Areas of frost after 5am. Otherwise, clear, with a low around 34. North wind 3 to 6 mph.

    Low: 34 °F

    Clear then
    Areas Frost

  • Sunday

    Sunday: Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 60. Calm wind.

    High: 60 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 35. Calm wind.

    Low: 35 °F

    Clear

  • Monday

    Monday: Areas of frost before 9am. Otherwise, sunny, with a high near 65.

    High: 65 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Overnight
Cloudy, with a low around 49. North wind around 11 mph, with gusts as high as 24 mph.
Saturday
Cloudy through mid morning, then gradual clearing, with a high near 54. North wind 11 to 15 mph, with gusts as high as 26 mph.
Saturday Night
Areas of frost after 5am. Otherwise, clear, with a low around 34. North wind 3 to 6 mph.
Sunday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 60. Calm wind.
Sunday Night
Clear, with a low around 35. Calm wind.
Monday
Areas of frost before 9am. Otherwise, sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 44.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Mostly sunny, with a high near 66.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNE Mercersburg PA
 39.87°N 77.9°W (Elev. 564 ft)
Last Update:
2:21 am EDT Oct 17, 2026
Forecast Valid:
3am EDT Oct 17, 2026-6pm EDT Oct 23, 2026
 
Forecast Discussion
 
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