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

Ephrata, Ephrata Municipal Airport (KEPH)

Lat: 47.3075°NLon: 119.51583°WElev: 1276.0ft.

Overcast

28°F

-2°C

Humidity 92%
Wind Speed SSW 5 MPH
Barometer 30.39 in (1029.12 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 19 Jan 09:55 PM PST
Extended Forecast for

5 Miles S Coulee City WA

Air Stagnation Advisory January 19, 10:29pm until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 19, 10:29pm until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Tonight

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 38. North wind around 6 mph.

    High: 38 °F

    Decreasing
    Clouds

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 22. Light north wind.

    Low: 22 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 37. Northeast wind around 5 mph.

    High: 37 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24. North wind 3 to 5 mph.

    Low: 24 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

Detailed Forecast

Tonight
Mostly cloudy, with a low around 25. Calm wind becoming southeast around 5 mph after midnight.
Tuesday
Mostly cloudy, then gradually becoming sunny, with a high near 38. North wind around 6 mph.
Tuesday Night
Mostly clear, with a low around 22. Light north wind.
Wednesday
Mostly sunny, with a high near 37. Northeast wind around 5 mph.
Wednesday Night
Mostly cloudy, with a low around 24. North wind 3 to 5 mph.
Thursday
Partly sunny, with a high near 37.
Thursday Night
Mostly cloudy, with a low around 23.
Friday
Mostly sunny, with a high near 38.
Friday Night
Mostly clear, with a low around 22.
Saturday
Mostly sunny, with a high near 37.
Saturday Night
Mostly cloudy, with a low around 25.
Sunday
A slight chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
Partly sunny, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Coulee City WA
 47.53°N 119.29°W (Elev. 1519 ft)
9:02 pm PST Jan 19, 2026
10pm PST Jan 19, 2026-6pm PST Jan 26, 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