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

Areas of Extreme Heat and Excessive Rainfall Potential

Dangerous and extreme heat will remain across portions of the central U.S. this week, persisting across the mid to lower Mississippi Valley, Gulf Coast, southern Plains and portions of Texas. A heat wave over the Southwest U.S. will peak this weekend. Heavy to excessive rainfall may produce flash flooding from the Delmarva Peninsula north into the Hudson Valley today and tonight. Read More >

Current conditions at

MARTEN RIDGE (MRTW1)

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

NA

55°F

13°C

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

Newhalem WA

  • Today

    Today: A 40 percent chance of rain, mainly after 4pm. Partly sunny, with a high near 72. Southwest wind around 10 mph.

    High: 72 °F

    Chance Rain

  • Tonight

    Tonight: A 30 percent chance of rain, mainly before 7pm. Mostly cloudy, with a low around 57. West southwest wind 5 to 7 mph becoming calm in the evening.

    Low: 57 °F

    Chance Rain
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 77. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. West southwest wind 5 to 8 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: A chance of rain after 11am. Mostly sunny, with a high near 75.

    High: 75 °F

    Chance Rain

Detailed Forecast

Today
A 40 percent chance of rain, mainly after 4pm. Partly sunny, with a high near 72. Southwest wind around 10 mph.
Tonight
A 30 percent chance of rain, mainly before 7pm. Mostly cloudy, with a low around 57. West southwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 77. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 56. West southwest wind 5 to 8 mph becoming calm in the evening.
Thursday
Sunny, with a high near 80. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 60.
Saturday
A chance of rain after 11am. Mostly sunny, with a high near 75.
Saturday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 55.
Sunday
A chance of rain. Partly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Sunny, with a high near 78.
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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:
11:26 pm PDT Jul 27, 2026
Forecast Valid:
11am PDT Jul 28, 2026-6pm PDT Aug 3, 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