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

Heavy Rainfall in Florida; Critical Fire Weather in the Southeast; Heavy Rain and Flooding Concerns in Hawaii

Thunderstorms and periods of heavy to excessive rainfall will continue over Florida through Thursday; and will begin to impact the central Plains today. Dry and gusty conditions will promote elevated to critical fire weather conditions in the Southeast. A Kona Low is expected to bring strong winds, widespread heavy rainfall, and flooding concerns to the island chain through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Fair

35°F

2°C

Humidity 54%
Wind Speed Calm
Barometer 30.60 in (1037.8 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 8 Apr 8:53 am EDT
Extended Forecast for

3 Miles SSW Mercersburg PA

Freeze Watch April 9, 12:00am until April 9, 09:00am
Click here for hazard details and duration
Freeze Watch

  • Today

    Today: Sunny, with a high near 53. Light and variable wind becoming southeast 5 to 7 mph in the afternoon.

    High: 53 °F

    Sunny

  • Tonight

    Tonight: Widespread frost after 3am. Otherwise, mostly clear, with a low around 31. Southeast wind around 6 mph becoming calm in the evening.

    Low: 31 °F

    Clear then
    Frost

  • Thursday

    Thursday: Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 61. Calm wind becoming south 5 to 8 mph in the morning.

    High: 61 °F

    Frost then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 38. Light southeast wind.

    Low: 38 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 76. Calm wind becoming south around 6 mph in the afternoon.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 20%.

    Low: 51 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 44 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 53. Light and variable wind becoming southeast 5 to 7 mph in the afternoon.
Tonight
Widespread frost after 3am. Otherwise, mostly clear, with a low around 31. Southeast wind around 6 mph becoming calm in the evening.
Thursday
Widespread frost, mainly before 8am. Otherwise, mostly sunny, with a high near 61. Calm wind becoming south 5 to 8 mph in the morning.
Thursday Night
Mostly clear, with a low around 38. Light southeast wind.
Friday
Sunny, with a high near 76. Calm wind becoming south around 6 mph in the afternoon.
Friday Night
A slight chance of showers. Mostly cloudy, with a low around 51. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Mostly clear, with a low around 44.
Sunday
Mostly sunny, with a high near 71.
Sunday Night
Mostly cloudy, with a low around 55.
Monday
Partly sunny, with a high near 81.
Monday Night
Mostly cloudy, with a low around 62.
Tuesday
Partly sunny, with a high near 86.
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:
8:06 am EDT Apr 8, 2026
Forecast Valid:
9am EDT Apr 8, 2026-6pm EDT Apr 14, 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