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

Flooding Threat Along the Gulf Coast, Southern Rockies and High Plains; Cooler Weather in the Central and Eastern U.S.

Strong thunderstorms may bring excessive rainfall and flooding over parts of the northern Gulf Coast today and over parts of the southern Rockies into the High Plains today through the weekend. A refreshingly cool and dry air mass will continue to produce below average temperatures across the central and eastern U.S. through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Ephrata, Ephrata Municipal Airport (KEPH)

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

Clear

91°F

33°C

Humidity 17%
Wind Speed SSW 5 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 30 Aug 05:30 PM PDT
Extended Forecast for

9 Miles SW Coulee City WA

Heat Advisory August 31, 01:00pm until September 4, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Widespread haze before 2am. Partly cloudy, with a low around 67. South wind 5 to 9 mph becoming north after midnight.

    Low: 67 °F

    Haze

  • Sunday

    Sunday: Widespread haze before noon. Mostly sunny and hot, with a high near 96. North wind 10 to 13 mph becoming south in the afternoon.

    High: 96 °F

    Haze then
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 68. South wind 5 to 9 mph becoming north after midnight.

    Low: 68 °F

    Mostly Cloudy

  • Labor Day

    Labor Day: Mostly sunny and hot, with a high near 96. North wind around 10 mph becoming southeast in the afternoon.

    High: 96 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 68. South wind 6 to 10 mph becoming north in the evening.

    Low: 68 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 69.

    Low: 69 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

Detailed Forecast

Tonight
Widespread haze before 2am. Partly cloudy, with a low around 67. South wind 5 to 9 mph becoming north after midnight.
Sunday
Widespread haze before noon. Mostly sunny and hot, with a high near 96. North wind 10 to 13 mph becoming south in the afternoon.
Sunday Night
Mostly cloudy, with a low around 68. South wind 5 to 9 mph becoming north after midnight.
Labor Day
Mostly sunny and hot, with a high near 96. North wind around 10 mph becoming southeast in the afternoon.
Monday Night
Mostly clear, with a low around 68. South wind 6 to 10 mph becoming north in the evening.
Tuesday
Sunny and hot, with a high near 100.
Tuesday Night
Clear, with a low around 69.
Wednesday
Sunny and hot, with a high near 101.
Wednesday Night
Mostly clear, with a low around 69.
Thursday
Sunny and hot, with a high near 99.
Thursday Night
Mostly clear, with a low around 67.
Friday
Mostly sunny, with a high near 95.
Friday Night
Partly cloudy, with a low around 66.
Saturday
Mostly sunny, with a high near 90.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles SW Coulee City WA
 47.53°N 119.42°W (Elev. 1699 ft)
Last Update:
4:17 pm PDT Aug 30, 2025
Forecast Valid:
5pm PDT Aug 30, 2025-6pm PDT Sep 6, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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