National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Hazardous Weather Conditions

Current conditions at

MARTEN RIDGE (MRTW1)

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

NA

40°F

4°C

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

12 Miles WNW Newhalem WA

Flood Watch March 18, 01:00pm until March 20, 05:00pm
Click here for hazard details and duration
Flood Watch

  • Overnight

    Overnight: Rain, possibly mixed with snow. Low around 32. Wind chill values between 22 and 27. South southwest wind around 15 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain/Snow

  • Tuesday

    Tuesday: Rain. High near 36. Wind chill values between 23 and 28. Southwest wind around 17 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 36 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. The rain could be heavy at times. Low around 34. Wind chill values between 25 and 30. Southwest wind around 17 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 34 °F

    Heavy Rain

  • Wednesday

    Wednesday: Rain. The rain could be heavy at times. High near 38. Wind chill values between 25 and 30. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 38 °F

    Heavy Rain

  • Wednesday Night

    Wednesday Night: Rain before 11pm, then rain and snow. Low around 34. South southwest wind 16 to 20 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 34 °F

    Rain/Snow

  • Thursday

    Thursday: Rain, possibly mixed with snow. High near 36. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Rain/Snow

  • Thursday Night

    Thursday Night: Rain, possibly mixed with snow. Low around 35. Breezy. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    Low: 35 °F

    Rain/Snow and
    Breezy

  • Friday

    Friday: Rain and snow, becoming all snow after 2pm. Cloudy, with a high near 37. Breezy.

    High: 37 °F

    Rain/Snow and
    Breezy

  • Friday Night

    Friday Night: Snow. Mostly cloudy, with a low around 26.

    Low: 26 °F

    Snow

Detailed Forecast

Overnight
Rain, possibly mixed with snow. Low around 32. Wind chill values between 22 and 27. South southwest wind around 15 mph. Chance of precipitation is 80%. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
Rain. High near 36. Wind chill values between 23 and 28. Southwest wind around 17 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Tuesday Night
Rain. The rain could be heavy at times. Low around 34. Wind chill values between 25 and 30. Southwest wind around 17 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday
Rain. The rain could be heavy at times. High near 38. Wind chill values between 25 and 30. Southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday Night
Rain before 11pm, then rain and snow. Low around 34. South southwest wind 16 to 20 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Thursday
Rain, possibly mixed with snow. High near 36. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Thursday Night
Rain, possibly mixed with snow. Low around 35. Breezy. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Friday
Rain and snow, becoming all snow after 2pm. Cloudy, with a high near 37. Breezy.
Friday Night
Snow. Mostly cloudy, with a low around 26.
Saturday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 30.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 20.
Sunday
A chance of snow. Partly sunny, with a high near 31.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 22.
Monday
A chance of snow. Mostly cloudy, with a high near 33.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles WNW Newhalem WA
 48.76°N 121.49°W (Elev. 5807 ft)
Last Update:
2:25 am PDT Mar 17, 2026
Forecast Valid:
4am PDT Mar 17, 2026-6pm PDT Mar 23, 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