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Flooding Risks from Tropical Moisture Across the Intermountain West and East Coast

Tropical moisture from Isaias and Rachel will impact portions of the Intermountain West and East Coast states. Flooding, gusty winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, record warmth will spread northward across the Mississippi Valley the next few days. Looking for snow, the first winter storm of the season is underway across the northern Rockies. Read More >

Hazardous Weather Conditions

Current conditions at

Grand Coulee Dam Airport (K3W7)

Lat: 47.92205°NLon: 119.083°WElev: 1593.0ft.

Overcast

45°F

7°C

Humidity 70%
Wind Speed N 0 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 11 Oct 06:15 AM PDT
Extended Forecast for

Coulee City WA

Blowing Dust Advisory October 11, 09:00am until October 11, 05:00pm
Click here for hazard details and duration
Blowing Dust Advisory

  • Today

    Today: Patchy blowing dust after 11am. Mostly sunny, with a high near 58. Breezy, with a northeast wind 17 to 22 mph, with gusts as high as 39 mph.

    High: 58 °F

    Patchy
    Blowing Dust
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 33. North wind 8 to 11 mph, with gusts as high as 30 mph.

    Low: 33 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Areas of frost between 8am and 9am. Otherwise, sunny, with a high near 59. North wind 5 to 9 mph becoming light and variable in the morning.

    High: 59 °F

    Areas Frost
    then Sunny

  • Monday Night

    Monday Night: Areas of frost after 5am. Otherwise, mostly clear, with a low around 35. Southwest wind around 6 mph becoming east after midnight.

    Low: 35 °F

    Mostly Clear
    then Areas
    Frost

  • Tuesday

    Tuesday: Areas of frost before 9am. Otherwise, sunny, with a high near 61. Northeast wind around 6 mph becoming light and variable.

    High: 61 °F

    Areas Frost
    then Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

Today
Patchy blowing dust after 11am. Mostly sunny, with a high near 58. Breezy, with a northeast wind 17 to 22 mph, with gusts as high as 39 mph.
Tonight
Mostly clear, with a low around 33. North wind 8 to 11 mph, with gusts as high as 30 mph.
Columbus Day
Areas of frost between 8am and 9am. Otherwise, sunny, with a high near 59. North wind 5 to 9 mph becoming light and variable in the morning.
Monday Night
Areas of frost after 5am. Otherwise, mostly clear, with a low around 35. Southwest wind around 6 mph becoming east after midnight.
Tuesday
Areas of frost before 9am. Otherwise, sunny, with a high near 61. Northeast wind around 6 mph becoming light and variable.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
Mostly sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 68.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Coulee City WA
 47.63°N 119.29°W (Elev. 1568 ft)
Last Update:
4:31 am PDT Oct 11, 2026
Forecast Valid:
6am PDT Oct 11, 2026-6pm PDT Oct 17, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation