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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Ephrata, Ephrata Municipal Airport (KEPH)

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

Clear

45°F

7°C

Humidity 26%
Wind Speed WNW 4 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 22 Mar 12:20 AM PDT
Extended Forecast for

5 Miles S Coulee City WA

  • Overnight

    Overnight: Clear, with a low around 30. Northwest wind 6 to 11 mph becoming southwest.

    Low: 30 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 57. South wind 5 to 10 mph.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 34. South wind 5 to 7 mph becoming light and variable in the evening.

    Low: 34 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 59. North wind around 6 mph becoming southwest in the afternoon.

    High: 59 °F

    Partly Sunny

  • Monday Night

    Monday Night: Cloudy, with a low around 42. Southwest wind around 6 mph becoming light and variable in the evening.

    Low: 42 °F

    Cloudy

  • Tuesday

    Tuesday: Rain. High near 56. Chance of precipitation is 80%.

    High: 56 °F

    Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 37.

    Low: 37 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 57. Breezy.

    High: 57 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 31. Breezy.

    Low: 31 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Clear

Detailed Forecast

Overnight
Clear, with a low around 30. Northwest wind 6 to 11 mph becoming southwest.
Sunday
Sunny, with a high near 57. South wind 5 to 10 mph.
Sunday Night
Mostly cloudy, with a low around 34. South wind 5 to 7 mph becoming light and variable in the evening.
Monday
Partly sunny, with a high near 59. North wind around 6 mph becoming southwest in the afternoon.
Monday Night
Cloudy, with a low around 42. Southwest wind around 6 mph becoming light and variable in the evening.
Tuesday
Rain. High near 56. Chance of precipitation is 80%.
Tuesday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 37.
Wednesday
Mostly sunny, with a high near 57. Breezy.
Wednesday Night
Mostly clear, with a low around 31. Breezy.
Thursday
Sunny, with a high near 54.
Thursday Night
Mostly clear, with a low around 31.
Friday
Sunny, with a high near 58.
Friday Night
Partly cloudy, with a low around 34.
Saturday
Mostly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Coulee City WA
 47.53°N 119.29°W (Elev. 1519 ft)
Last Update:
9:02 pm PDT Mar 21, 2026
Forecast Valid:
12am PDT Mar 22, 2026-6pm PDT Mar 28, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation