Prolonged Extreme Cold; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the Gulf Coast, upper Ohio Valley, Mid-Atlantic, and Southeast U.S. into this weekend. A rapidly deepening storm centered just off the North Carolina coast Friday night through Saturday night will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia. Read More >

Current conditions at

Grand Coulee Dam Airport (K3W7)

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

Overcast

39°F

4°C

Humidity 100%
Wind Speed ENE 6 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 39°F (4°C)
Visibility 9.00 mi
Wind Chill35°F (2°C)
Last update 30 Jan 08:55 AM PST
Extended Forecast for

Grand Coulee WA

  • Today

    Today: A 40 percent chance of rain, mainly after 10am.  Cloudy, with a high near 45. South wind 5 to 7 mph.  New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Chance Rain

  • Tonight

    Tonight: Patchy fog after 10pm.  Otherwise, mostly cloudy, with a low around 36. South wind around 5 mph becoming light and variable  in the evening.

    Low: 36 °F

    Patchy Fog

  • Saturday

    Saturday: Mostly cloudy, with a high near 45. Northeast wind around 6 mph.

    High: 45 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 36. Northeast wind around 5 mph.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 46. East wind around 6 mph becoming south in the afternoon.

    High: 46 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 46.

    High: 46 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

Detailed Forecast

Today
A 40 percent chance of rain, mainly after 10am. Cloudy, with a high near 45. South wind 5 to 7 mph. New precipitation amounts of less than a tenth of an inch possible.
Tonight
Patchy fog after 10pm. Otherwise, mostly cloudy, with a low around 36. South wind around 5 mph becoming light and variable in the evening.
Saturday
Mostly cloudy, with a high near 45. Northeast wind around 6 mph.
Saturday Night
Mostly cloudy, with a low around 36. Northeast wind around 5 mph.
Sunday
Mostly cloudy, with a high near 46. East wind around 6 mph becoming south in the afternoon.
Sunday Night
Mostly cloudy, with a low around 36.
Monday
Mostly cloudy, with a high near 46.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
Partly sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
Partly sunny, with a high near 50.
Wednesday Night
Partly cloudy, with a low around 34.
Thursday
Mostly sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Coulee WA
 47.94°N 119.02°W (Elev. 1601 ft)
8:58 am PST Jan 30, 2026
9am PST Jan 30, 2026-6pm PST Feb 5, 2026
 
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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