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

SPRING CANYON (SPCW1)

Lat: 47.93472°NLon: 118.93472°WElev: 1340.0ft.

NA

43°F

6°C

Humidity 27%
Wind Speed W 5 MPH
Barometer NA
Dewpoint 11°F (-12°C)
Visibility NA
Wind Chill40°F (4°C)
Last update 22 Mar 12:37 AM PDT
Extended Forecast for

Coulee Dam WA

  • Overnight

    Overnight: Clear, with a low around 33. Southwest wind 3 to 7 mph.

    Low: 33 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 55. Light southwest wind increasing to 5 to 9 mph in the morning.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38. South wind around 6 mph becoming calm in the evening.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 58. Light and variable wind.

    High: 58 °F

    Partly Sunny

  • Monday Night

    Monday Night: Cloudy, with a low around 44. Southwest wind around 5 mph becoming calm in the evening.

    Low: 44 °F

    Cloudy

  • Tuesday

    Tuesday: Rain. High near 54. Chance of precipitation is 90%.

    High: 54 °F

    Rain

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 39.

    Low: 39 °F

    Chance Rain
    then Partly
    Cloudy

  • Wednesday

    Wednesday: A slight chance of rain and snow between 11am and 2pm, then a slight chance of rain after 2pm. Mostly sunny, with a high near 55. Chance of precipitation is 20%.

    High: 55 °F

    Slight Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

Detailed Forecast

Overnight
Clear, with a low around 33. Southwest wind 3 to 7 mph.
Sunday
Sunny, with a high near 55. Light southwest wind increasing to 5 to 9 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 38. South wind around 6 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 58. Light and variable wind.
Monday Night
Cloudy, with a low around 44. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
Rain. High near 54. Chance of precipitation is 90%.
Tuesday Night
A 30 percent chance of rain before 11pm. Mostly cloudy, with a low around 39.
Wednesday
A slight chance of rain and snow between 11am and 2pm, then a slight chance of rain after 2pm. Mostly sunny, with a high near 55. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 33.
Thursday
Sunny, with a high near 53.
Thursday Night
Mostly clear, with a low around 33.
Friday
Sunny, with a high near 57.
Friday Night
Partly cloudy, with a low around 36.
Saturday
Sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Coulee Dam WA
 47.97°N 119°W (Elev. 1732 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