National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Lake Effect Snow in the Lower Great Lakes; Rain and High Elevation Snow in the West

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest Thursday afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Current conditions at

Ephrata, Ephrata Municipal Airport (KEPH)

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

Clear

36°F

2°C

Humidity 80%
Wind Speed N 0 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 11 Feb 06:15 PM PST
Extended Forecast for

4 Miles WSW Coulee City WA

  • Tonight

    Tonight: Partly cloudy, with a low around 31. Light north wind.

    Low: 31 °F

    Partly Cloudy

  • Thursday

    Thursday: Cloudy, then becoming mostly sunny during the afternoon, with a high near 44. Calm wind becoming south around 6 mph in the afternoon.

    High: 44 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 29. Light and variable wind.

    Low: 29 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly cloudy, with a high near 42. Light and variable wind becoming southeast around 5 mph in the afternoon.

    High: 42 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 31. South wind 3 to 5 mph.

    Low: 31 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 10 percent chance of rain after 4pm. Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 44.

    High: 44 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 31. Light north wind.
Thursday
Cloudy, then becoming mostly sunny during the afternoon, with a high near 44. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
Increasing clouds, with a low around 29. Light and variable wind.
Friday
Mostly cloudy, with a high near 42. Light and variable wind becoming southeast around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 31. South wind 3 to 5 mph.
Saturday
A 10 percent chance of rain after 4pm. Partly sunny, with a high near 43.
Saturday Night
A 20 percent chance of rain before 10pm. Mostly cloudy, with a low around 32.
Sunday
Mostly cloudy, with a high near 44.
Sunday Night
Mostly cloudy, with a low around 30.
Washington's Birthday
A chance of rain and snow, mainly after 4pm. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
Monday Night
A chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 30%.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 43. Chance of precipitation is 40%.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 20%.
Wednesday
A slight chance of rain and snow. Partly sunny, with a high near 43. Chance of precipitation is 20%.
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Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Coulee City WA
 47.58°N 119.37°W (Elev. 1519 ft)
Last Update:
2:47 pm PST Feb 11, 2026
Forecast Valid:
6pm PST Feb 11, 2026-6pm PST Feb 18, 2026
 
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Additional Resources

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation