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 >

Hazardous Weather Conditions

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71° N Lon: 77.73° W Elev: 702 ft.

Partly Cloudy

81°F

27°C

Humidity 77%
Wind Speed W 9 mph
Barometer 29.89 in (1012.5 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 17 Aug 5:53 pm EDT
Detailed forecast for

Washington County

Tonight
Mostly cloudy. Scattered showers with isolated thunderstorms this evening. Some thunderstorms may produce gusty winds and heavy rainfall this evening. Lows in the upper 60s. North winds 5 to 10 mph. Chance of rain 50 percent.
Monday
Mostly cloudy. A slight chance of showers in the afternoon. Highs in the upper 70s. Northeast winds 5 to 10 mph. Chance of rain 20 percent.
Monday Night
Mostly cloudy with a 40 percent chance of showers. Lows in the mid 60s. East winds 5 to 10 mph.
Tuesday
Mostly cloudy with a 40 percent chance of showers. Highs in the upper 70s. East winds around 5 mph.
Tuesday Night
Mostly cloudy. A chance of showers in the evening. Lows in the mid 60s. East winds around 5 mph. Chance of rain 30 percent.
Wednesday
Partly sunny with a 40 percent chance of showers. Highs in the lower 80s.
Wednesday Night
Partly cloudy with a 40 percent chance of showers. Lows in the mid 60s.
Thursday
Mostly sunny with a 30 percent chance of showers. Highs in the lower 80s.
Thursday Night
Partly cloudy. Lows in the lower 60s.
Friday
Mostly sunny. Highs in the mid 80s.
Friday Night
Mostly clear. Lows in the mid 60s.
Saturday
Mostly sunny with a chance of showers. Highs in the upper 80s. Chance of rain 30 percent.
Saturday Night
Mostly cloudy. Lows in the mid 60s.
Sunday
Partly sunny with a chance of showers. Highs in the mid 80s. Chance of rain 40 percent.



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525 PM EDT Sun Aug 17 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database