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

34°F

1°C

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

Newhalem WA

  • Overnight

    Overnight: A chance of rain and snow, mainly after 4am. Mostly cloudy, with a steady temperature around 34. Northeast wind around 6 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 34 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: A chance of rain and snow before 2pm, then a slight chance of rain and snow after 4pm. Mostly sunny, with a high near 38. Wind chill values between 24 and 31. East northeast wind 7 to 11 mph becoming west southwest in the morning. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Chance
    Rain/Snow
    then Slight
    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow, mainly after 4am. Increasing clouds, with a low around 29. Wind chill values between 22 and 27. South wind 5 to 9 mph. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Partly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: Snow likely before 11am, then a chance of rain and snow. Mostly cloudy, with a high near 40. Wind chill values between 22 and 32. West southwest wind 7 to 9 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 30. West southwest wind 5 to 9 mph becoming light and variable in the evening.

    Low: 30 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 45.

    High: 45 °F

    Partly Sunny

  • Monday Night

    Monday Night: A chance of rain after 11pm, mixing with snow after 2am. Mostly cloudy, with a low around 36. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 36 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Tuesday

    Tuesday: Rain, possibly mixed with snow, becoming all rain after 2pm. Cloudy, with a high near 43.

    High: 43 °F

    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain before 11pm, then rain and snow. Some thunder is also possible. Cloudy, with a low around 33.

    Low: 33 °F

    Rain/Snow

Detailed Forecast

Overnight
A chance of rain and snow, mainly after 4am. Mostly cloudy, with a steady temperature around 34. Northeast wind around 6 mph. Chance of precipitation is 30%. Total nighttime snow accumulation of less than a half inch possible.
Saturday
A chance of rain and snow before 2pm, then a slight chance of rain and snow after 4pm. Mostly sunny, with a high near 38. Wind chill values between 24 and 31. East northeast wind 7 to 11 mph becoming west southwest in the morning. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Saturday Night
A 30 percent chance of snow, mainly after 4am. Increasing clouds, with a low around 29. Wind chill values between 22 and 27. South wind 5 to 9 mph. New snow accumulation of less than a half inch possible.
Sunday
Snow likely before 11am, then a chance of rain and snow. Mostly cloudy, with a high near 40. Wind chill values between 22 and 32. West southwest wind 7 to 9 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Sunday Night
Mostly cloudy, with a low around 30. West southwest wind 5 to 9 mph becoming light and variable in the evening.
Monday
Partly sunny, with a high near 45.
Monday Night
A chance of rain after 11pm, mixing with snow after 2am. Mostly cloudy, with a low around 36. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tuesday
Rain, possibly mixed with snow, becoming all rain after 2pm. Cloudy, with a high near 43.
Tuesday Night
Rain before 11pm, then rain and snow. Some thunder is also possible. Cloudy, with a low around 33.
Wednesday
Rain and snow. Cloudy, with a high near 41.
Wednesday Night
Rain and snow. Mostly cloudy, with a low around 29.
Thursday
Rain and snow likely. Mostly cloudy, with a high near 40.
Thursday Night
A chance of rain and snow. Mostly cloudy, with a low around 27.
Friday
A chance of snow. Partly sunny, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Newhalem WA
 48.67°N 121.23°W (Elev. 1493 ft)
Last Update:
11:27 pm PDT Mar 20, 2026
Forecast Valid:
3am PDT Mar 21, 2026-6pm PDT Mar 27, 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