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 >

Hazardous Weather Conditions

Current conditions at

MARTEN RIDGE (MRTW1)

Lat: 48.76292°NLon: 121.69823°WElev: 3520.0ft.

NA

45°F

7°C

Humidity NA
Wind Speed NA NA MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update NA
Extended Forecast for

Newhalem WA

Flood Watch March 20, 05:00am until March 20, 05:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch March 20, 05:00am until March 20, 05:00pm

    NOW until 5:00pm Fri

    Flood Watch

  • Overnight

    Low: 44 °F

    Rain

  • Friday

    Friday: Rain. High near 46. West southwest wind 8 to 13 mph becoming southeast in the morning. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 46 °F

    Rain

  • Friday Night

    Friday Night: Rain showers likely before 2am, then rain likely, possibly mixed with snow showers. Mostly cloudy, with a low around 32. Southwest wind 9 to 11 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Saturday

    Saturday: Snow showers likely, possibly mixed with rain, mainly before 11am. Partly sunny, with a high near 38. Wind chill values between 24 and 30. West southwest wind 9 to 14 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow
    Likely then
    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: A slight chance of rain and snow showers before 8pm, then a chance of snow showers. Mostly cloudy, with a low around 29. West southwest wind 8 to 15 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Sunday

    Sunday: Snow likely before 11am, then rain and snow likely. Mostly cloudy, with a high near 39. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: A chance of rain and snow before 11pm. Mostly cloudy, with a low around 31. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 31 °F

    Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Monday

    Monday: A slight chance of rain and snow before 11am, then a slight chance of snow after 5pm. Partly sunny, with a high near 46.

    High: 46 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow

Detailed Forecast

Overnight
Rain. Low around 44. West southwest wind around 11 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain. High near 46. West southwest wind 8 to 13 mph becoming southeast in the morning. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Friday Night
Rain showers likely before 2am, then rain likely, possibly mixed with snow showers. Mostly cloudy, with a low around 32. Southwest wind 9 to 11 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday
Snow showers likely, possibly mixed with rain, mainly before 11am. Partly sunny, with a high near 38. Wind chill values between 24 and 30. West southwest wind 9 to 14 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Saturday Night
A slight chance of rain and snow showers before 8pm, then a chance of snow showers. Mostly cloudy, with a low around 29. West southwest wind 8 to 15 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Sunday
Snow likely before 11am, then rain and snow likely. Mostly cloudy, with a high near 39. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
A chance of rain and snow before 11pm. Mostly cloudy, with a low around 31. Chance of precipitation is 30%. Little or no snow accumulation expected.
Monday
A slight chance of rain and snow before 11am, then a slight chance of snow after 5pm. Partly sunny, with a high near 46.
Monday Night
A slight chance of rain and snow before 8pm, then a slight chance of rain between 8pm and 11pm, then a chance of rain and snow after 11pm. Mostly cloudy, with a low around 36.
Tuesday
Rain and snow, becoming all rain after 2pm. Cloudy, with a high near 43.
Tuesday Night
Rain and snow. Cloudy, with a low around 33.
Wednesday
Rain and snow. Cloudy, with a high near 39.
Wednesday Night
Rain and snow likely. Mostly cloudy, with a low around 29.
Thursday
A chance of snow. Partly sunny, with a high near 40.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newhalem WA
 48.67°N 121.23°W (Elev. 1493 ft)
Last Update:
1:53 am PDT Mar 20, 2026
Forecast Valid:
5am PDT Mar 20, 2026-6pm PDT Mar 26, 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