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.

Mist

28°F

-2°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 30.36 in (1028.11 mb)
Dewpoint 27°F (-3°C)
Visibility 6.00 mi
Last update 20 Jan 01:20 AM PST
Extended Forecast for

9 Miles SW Coulee City WA

Air Stagnation Advisory January 20, 01:42am until January 20, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory January 20, 01:42am until January 20, 04:00pm

    NOW until 4:00pm Tue

    Air Stagnation Advisory

  • Overnight

    Low: 25 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 36. North wind 3 to 6 mph.

    High: 36 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 23. West wind around 5 mph becoming northeast after midnight.

    Low: 23 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 35. North wind around 6 mph becoming calm  in the afternoon.

    High: 35 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24. North wind around 6 mph.

    Low: 24 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 34.

    High: 34 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

Detailed Forecast

Overnight
Mostly cloudy, with a low around 25. Southeast wind around 7 mph becoming north.
Tuesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 36. North wind 3 to 6 mph.
Tuesday Night
Increasing clouds, with a low around 23. West wind around 5 mph becoming northeast after midnight.
Wednesday
Mostly sunny, with a high near 35. North wind around 6 mph becoming calm in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 24. North wind around 6 mph.
Thursday
Partly sunny, with a high near 34.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Sunny, with a high near 37.
Friday Night
Mostly clear, with a low around 22.
Saturday
Mostly sunny, with a high near 33.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
A 20 percent chance of snow. Partly sunny, with a high near 34.
Sunday Night
Mostly cloudy, with a low around 26.
Monday
Partly sunny, with a high near 38.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles SW Coulee City WA
 47.53°N 119.45°W (Elev. 1552 ft)
1:12 am PST Jan 20, 2026
1am PST Jan 20, 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