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

Lake Effect Snow through Saturday: A Series of Storms Impact the West

Lake effect snow showers will continue through Saturday downwind of Lakes Erie, Ontario and the eastern portion of Lake Superior. A series of storm systems will continue to impact California and the Pacific Northwest through the weekend and into next week, bringing widespread rainfall, mountain snowfall, and gusty winds. Coastal flooding is expected in northern California. Read More >

Hazardous Weather Conditions

Current conditions at

Ephrata, Ephrata Municipal Airport (KEPH)

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

light frz rain,mist

32°F

0°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 29.86 in (1011.18 mb)
Dewpoint 30°F (-1°C)
Visibility 4.00 mi
Last update 01 Jan 06:20 PM PST
Extended Forecast for

4 Miles WSW Coulee City WA

Winter Weather Advisory until January 2, 04:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory until January 2, 04:00am

    NOW until 4:00am Fri

    Winter Weather Advisory

  • Tonight

    Low: 28 °F

    Chance Wintry
    Mix

  • Friday

    Friday: A chance of freezing rain before 10am, then a slight chance of rain after 4pm. Mostly cloudy, with a high near 34. Light southeast wind. Chance of precipitation is 30%.

    High: 34 °F

    Chance
    Freezing Rain
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: Rain, mainly after 4am. Temperature rising to around 36 by 3am. North wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F⇑

    Chance Rain
    then Rain

  • Saturday

    Saturday: Rain before 10am, then rain likely, possibly mixed with snow between 10am and 1pm, then rain likely after 1pm. High near 39. Northeast wind around 6 mph becoming south in the afternoon. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 39 °F

    Rain/Snow

  • Saturday Night

    Saturday Night: Rain likely, mainly between 10pm and 4am. Cloudy, with a low around 36. East wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Rain Likely

  • Sunday

    Sunday: A 30 percent chance of rain before 10am. Mostly cloudy, with a high near 44.

    High: 44 °F

    Chance Rain
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: A 20 percent chance of rain. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Slight Chance
    Rain

  • Monday

    Monday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

Detailed Forecast

Tonight
A chance of snow before 10pm, then a slight chance of rain and snow between 10pm and 1am, then a chance of freezing rain after 1am. Cloudy, with a low around 28. Calm wind. Chance of precipitation is 50%. Total nighttime snow accumulation of less than a half inch possible.
Friday
A chance of freezing rain before 10am, then a slight chance of rain after 4pm. Mostly cloudy, with a high near 34. Light southeast wind. Chance of precipitation is 30%.
Friday Night
Rain, mainly after 4am. Temperature rising to around 36 by 3am. North wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain before 10am, then rain likely, possibly mixed with snow between 10am and 1pm, then rain likely after 1pm. High near 39. Northeast wind around 6 mph becoming south in the afternoon. Chance of precipitation is 80%. Little or no snow accumulation expected.
Saturday Night
Rain likely, mainly between 10pm and 4am. Cloudy, with a low around 36. East wind 5 to 7 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 30 percent chance of rain before 10am. Mostly cloudy, with a high near 44.
Sunday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 33.
Monday
Partly sunny, with a high near 41.
Monday Night
A slight chance of rain and snow after 4am. Mostly cloudy, with a low around 30. Chance of precipitation is 10%.
Tuesday
A chance of rain and snow, mainly after 10am. Mostly cloudy, with a high near 40. Chance of precipitation is 30%.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Wednesday
A slight chance of rain and snow. Partly sunny, with a high near 39. Chance of precipitation is 20%.
Wednesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 38.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Coulee City WA
 47.58°N 119.37°W (Elev. 1519 ft)
Last Update:
2:53 pm PST Jan 1, 2026
Forecast Valid:
6pm PST Jan 1, 2026-6pm PST Jan 8, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation