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

44°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, 02:06pm until March 20, 05:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch March 20, 02:06pm until March 20, 05:00pm

    NOW until 5:00pm Fri

    Flood Watch

  • This Afternoon

    High: 52 °F

    Rain

  • Tonight

    Tonight: Rain likely, mainly before 7pm. Mostly cloudy, with a low around 36. Southwest wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Rain Likely

  • Saturday

    Saturday: A chance of rain and snow before 10am, then a slight chance of rain after 11am. Mostly sunny, with a high near 46. West southwest wind 3 to 6 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 46 °F

    Chance
    Rain/Snow
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: A chance of rain and snow between 11pm and 5am, then a chance of snow after 5am. Increasing clouds, with a low around 32. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Chance
    Rain/Snow

  • Sunday

    Sunday: Snow likely before 8am, then rain and snow likely between 8am and 11am, then a chance of rain after 11am. Mostly cloudy, with a high near 48. West southwest wind 3 to 6 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 48 °F

    Rain/Snow
    Likely then
    Chance Rain

  • Sunday Night

    Sunday Night: A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of rain after 11pm. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

Detailed Forecast

This Afternoon
Rain, mainly after 5pm. High near 52. Southwest wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tonight
Rain likely, mainly before 7pm. Mostly cloudy, with a low around 36. Southwest wind around 6 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of rain and snow before 10am, then a slight chance of rain after 11am. Mostly sunny, with a high near 46. West southwest wind 3 to 6 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Saturday Night
A chance of rain and snow between 11pm and 5am, then a chance of snow after 5am. Increasing clouds, with a low around 32. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Sunday
Snow likely before 8am, then rain and snow likely between 8am and 11am, then a chance of rain after 11am. Mostly cloudy, with a high near 48. West southwest wind 3 to 6 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
A 20 percent chance of rain before 11pm. Mostly cloudy, with a low around 35.
Monday
Partly sunny, with a high near 54.
Monday Night
A chance of rain after 11pm. Mostly cloudy, with a low around 42.
Tuesday
Rain. Cloudy, with a high near 49.
Tuesday Night
Rain before 5am, then rain and snow. Cloudy, with a low around 38.
Wednesday
Rain and snow. Cloudy, with a high near 46.
Wednesday Night
Rain and snow likely. Mostly cloudy, with a low around 31.
Thursday
A chance of rain and snow. Partly sunny, with a high near 48.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Newhalem WA
 48.66°N 121.27°W (Elev. 853 ft)
Last Update:
11:27 am PDT Mar 20, 2026
Forecast Valid:
2pm PDT Mar 20, 2026-6pm PDT Mar 26, 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