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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

A Few Clouds

74°F

23°C

Humidity 88%
Wind Speed N 6 mph
Barometer 29.98 in (1015.2 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 18 Aug 1:53 am EDT
Extended Forecast for

Halfway MD

  • Overnight

    Overnight: Mostly cloudy, with a low around 67. North wind 7 to 9 mph.

    Low: 67 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 79. North wind 8 to 11 mph, with gusts as high as 20 mph.

    High: 79 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 64. Northeast wind 3 to 7 mph.

    Low: 64 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers. Patchy fog between 9am and 10am. Otherwise, mostly cloudy, with a high near 77. East wind around 6 mph. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: A slight chance of showers. Mostly cloudy, with a low around 66. Southeast wind around 6 mph. Chance of precipitation is 20%.

    Low: 66 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 82. Chance of precipitation is 30%.

    High: 82 °F

    Mostly Cloudy
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers before 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 63.

    Low: 63 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 67. North wind 7 to 9 mph.
Monday
Mostly cloudy, with a high near 79. North wind 8 to 11 mph, with gusts as high as 20 mph.
Monday Night
Mostly cloudy, with a low around 64. Northeast wind 3 to 7 mph.
Tuesday
A slight chance of showers. Patchy fog between 9am and 10am. Otherwise, mostly cloudy, with a high near 77. East wind around 6 mph. Chance of precipitation is 20%.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 66. Southeast wind around 6 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 82. Chance of precipitation is 30%.
Wednesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 84.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Sunny, with a high near 87.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Mostly sunny, with a high near 88.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Sunday
A chance of showers. Mostly sunny, with a high near 86. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Halfway MD
 39.61°N 77.8°W (Elev. 456 ft)
Last Update:
1:30 am EDT Aug 18, 2025
Forecast Valid:
2am EDT Aug 18, 2025-6pm EDT Aug 24, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation