Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

MARTEN RIDGE (MRTW1)

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

NA

58°F

14°C

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

18 Miles NNW Newhalem WA

Red Flag Warning until August 22, 08:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning until August 22, 08:00pm

    NOW until 8:00pm Sat

    Red Flag Warning

  • This Afternoon

    High: 64 °F

    Showers

  • Tonight

    Tonight: Rain and thunderstorms likely.  Mostly cloudy, with a low around 47. South southwest wind 7 to 10 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Rain Likely

  • Sunday

    Sunday: Rain before 3pm, then a slight chance of rain after 4pm.  High near 54. South southwest wind 6 to 9 mph.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Rain then
    Rain Likely

  • Sunday Night

    Sunday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Calm wind becoming east northeast 5 to 7 mph after midnight.

    Low: 47 °F

    Decreasing
    Clouds

  • Monday

    Monday: Sunny, with a high near 71. East wind 5 to 8 mph becoming calm  in the morning.

    High: 71 °F

    Sunny

  • Monday Night

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

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 64. South southwest wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain and thunderstorms likely. Mostly cloudy, with a low around 47. South southwest wind 7 to 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Rain before 3pm, then a slight chance of rain after 4pm. High near 54. South southwest wind 6 to 9 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Calm wind becoming east northeast 5 to 7 mph after midnight.
Monday
Sunny, with a high near 71. East wind 5 to 8 mph becoming calm in the morning.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
A chance of rain after 11am. Mostly sunny, with a high near 62.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 47.
Thursday
A chance of rain. Partly sunny, with a high near 55.
Thursday Night
Partly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 57.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
18 Miles NNW Newhalem WA
 48.9°N 121.43°W (Elev. 5443 ft)
11:26 am PDT Aug 22, 2026
1pm PDT Aug 22, 2026-6pm PDT Aug 28, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database