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

Washington/Reagan National Airport, DC (KDCA)

Lat: 38.85°NLon: 77.03°WElev: 13ft.

A Few Clouds

40°F

4°C

Humidity 38%
Wind Speed S 9 mph
Barometer 30.00 in (1015.7 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 19 Jan 4:52 pm EST
Extended Forecast for

Idylwood VA

  • Tonight

    Tonight: Mostly clear, with a low around 17. Northwest wind 9 to 13 mph, with gusts as high as 24 mph.

    Low: 17 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 28. West wind 9 to 11 mph, with gusts as high as 24 mph.

    High: 28 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 16. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 16 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 39. South wind 5 to 15 mph, with gusts as high as 28 mph.

    High: 39 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 31. South wind 8 to 13 mph, with gusts as high as 23 mph.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of snow after 1am.  Mostly cloudy, with a low around 12. Chance of precipitation is 30%.

    Low: 12 °F

    Mostly Cloudy
    then Chance
    Snow

Detailed Forecast

Tonight
Mostly clear, with a low around 17. Northwest wind 9 to 13 mph, with gusts as high as 24 mph.
Tuesday
Sunny, with a high near 28. West wind 9 to 11 mph, with gusts as high as 24 mph.
Tuesday Night
Mostly clear, with a low around 16. Northwest wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 39. South wind 5 to 15 mph, with gusts as high as 28 mph.
Wednesday Night
Partly cloudy, with a low around 31. South wind 8 to 13 mph, with gusts as high as 23 mph.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
Partly cloudy, with a low around 27.
Friday
Partly sunny, with a high near 37.
Friday Night
A chance of snow after 1am. Mostly cloudy, with a low around 12. Chance of precipitation is 30%.
Saturday
A chance of snow. Mostly cloudy, with a high near 19. Chance of precipitation is 40%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 12. Chance of precipitation is 50%.
Sunday
A chance of snow. Partly sunny, with a high near 20. Chance of precipitation is 50%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 9. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 24.
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ABOUT THIS FORECAST

 
Point Forecast:
Idylwood VA
 38.88°N 77.2°W (Elev. 397 ft)
3:53 pm EST Jan 19, 2026
5pm EST Jan 19, 2026-6pm EST Jan 26, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database