Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

MARTEN RIDGE (MRTW1)

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

NA

54°F

12°C

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

10 Miles S Newhalem WA

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm before 2pm, then rain likely, mainly after 5pm.  Temperature falling to around 46 by 5pm. West southwest wind around 10 mph.  Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 51 °F

    Showers

  • Tonight

    Tonight: Rain likely, mainly before 7pm.  Cloudy, with a low around 39. West wind 6 to 10 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Rain Likely
    then Chance
    Rain

  • Sunday

    Sunday: A 40 percent chance of rain, mainly after 1pm.  Mostly cloudy, with a high near 45. West wind 5 to 8 mph.

    High: 45 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 37. West wind 5 to 7 mph becoming light and variable.

    Low: 37 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 59. East northeast wind 5 to 7 mph becoming light and variable.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm before 2pm, then rain likely, mainly after 5pm. Temperature falling to around 46 by 5pm. West southwest wind around 10 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain likely, mainly before 7pm. Cloudy, with a low around 39. West wind 6 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A 40 percent chance of rain, mainly after 1pm. Mostly cloudy, with a high near 45. West wind 5 to 8 mph.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 37. West wind 5 to 7 mph becoming light and variable.
Monday
Sunny, with a high near 59. East northeast wind 5 to 7 mph becoming light and variable.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 65.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 62.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles S Newhalem WA
 48.52°N 121.19°W (Elev. 5430 ft)
11:26 am PDT Aug 1, 2026
12pm PDT Aug 1, 2026-6pm PDT Aug 7, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database