Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Hazardous Weather Conditions

Current conditions at

Hagerstown, Washington County Regional Airport (KHGR)

Lat: 39.71°NLon: 77.73°WElev: 702ft.

Overcast

25°F

-4°C

Humidity 55%
Wind Speed SW 5 mph
Barometer 29.93 in (1015.3 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill19°F (-7°C)
Last update 19 Jan 2:53 am EST
Extended Forecast for

4 Miles N Williamsport MD

  • Overnight

    Overnight: Mostly cloudy, with a low around 19. Light south wind.

    Low: 19 °F

    Mostly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 35. Breezy, with a south wind 5 to 10 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 37 mph.

    High: 35 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: Mostly clear, with a low around 12. West wind 7 to 15 mph, with gusts as high as 30 mph.

    Low: 12 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 26. West wind 6 to 13 mph, with gusts as high as 22 mph.

    High: 26 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 10. Light and variable wind.

    Low: 10 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 27 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 19.

    Low: 19 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 19. Light south wind.
M.L.King Day
Mostly sunny, with a high near 35. Breezy, with a south wind 5 to 10 mph becoming west 15 to 20 mph in the afternoon. Winds could gust as high as 37 mph.
Monday Night
Mostly clear, with a low around 12. West wind 7 to 15 mph, with gusts as high as 30 mph.
Tuesday
Sunny, with a high near 26. West wind 6 to 13 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 10. Light and variable wind.
Wednesday
Mostly sunny, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
Mostly sunny, with a high near 45.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 33.
Friday Night
Mostly cloudy, with a low around 10.
Saturday
Partly sunny, with a high near 19.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 7. Chance of precipitation is 30%.
Sunday
A chance of snow. Partly sunny, with a high near 21. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Williamsport MD
 39.66°N 77.82°W (Elev. 472 ft)
2:34 am EST Jan 19, 2026
3am EST Jan 19, 2026-6pm EST Jan 25, 2026
 
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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