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 >

Current conditions at

Camp David (KRSP)

Lat: 39.65°NLon: 77.47°WElev: 1841ft.

Overcast

20°F

-7°C

Humidity 68%
Wind Speed NW 13 G 25 mph
Barometer 29.81 in (1012.2 mb)
Dewpoint 11°F (-12°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 18 Jan 8:54 pm EST
Extended Forecast for

2 Miles WSW Thurmont MD

  • Tonight

    Tonight: Partly cloudy, with a low around 18. Northwest wind 5 to 7 mph becoming southwest after midnight.

    Low: 18 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 31. Southwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 32 mph.

    High: 31 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 10. Wind chill values as low as zero. West wind 10 to 16 mph, with gusts as high as 32 mph.

    Low: 10 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 20. Wind chill values as low as -3. West wind 10 to 14 mph, with gusts as high as 26 mph.

    High: 20 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 11. West wind around 5 mph becoming calm  in the evening.

    Low: 11 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 32.

    High: 32 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 27 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 17.

    Low: 17 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 18. Northwest wind 5 to 7 mph becoming southwest after midnight.
M.L.King Day
Mostly sunny, with a high near 31. Southwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 32 mph.
Monday Night
Mostly clear, with a low around 10. Wind chill values as low as zero. West wind 10 to 16 mph, with gusts as high as 32 mph.
Tuesday
Sunny, with a high near 20. Wind chill values as low as -3. West wind 10 to 14 mph, with gusts as high as 26 mph.
Tuesday Night
Mostly clear, with a low around 11. West wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 32.
Wednesday Night
Mostly cloudy, with a low around 27.
Thursday
Partly sunny, with a high near 37.
Thursday Night
Mostly clear, with a low around 17.
Friday
Mostly sunny, with a high near 30.
Friday Night
Partly cloudy, with a low around 18.
Saturday
A chance of snow. Partly sunny, with a high near 26. Chance of precipitation is 30%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 13. Chance of precipitation is 40%.
Sunday
A chance of snow. Partly sunny, with a high near 19. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Thurmont MD
 39.62°N 77.45°W (Elev. 1322 ft)
6:53 pm EST Jan 18, 2026
9pm EST Jan 18, 2026-6pm EST Jan 25, 2026
 
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