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

Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains. Read More >

Current conditions at

MARTEN RIDGE (MRTW1)

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

NA

27°F

-3°C

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

Marblemount WA

  • Today

    Today: Widespread frost, mainly before 8am. Otherwise, partly sunny, with a high near 50. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 50 °F

    Frost then
    Partly Sunny

  • Tonight

    Tonight: Patchy frost after 10pm. Otherwise, increasing clouds, with a low around 33. Calm wind.

    Low: 33 °F

    Patchy Frost

  • Friday

    Friday: Patchy frost before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 57. Calm wind.

    High: 57 °F

    Patchy Frost
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 65. Calm wind.

    High: 65 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain. Mostly cloudy, with a high near 69.

    High: 69 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: A slight chance of rain before 11pm. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Monday

    Monday: A slight chance of rain after 11am. Mostly sunny, with a high near 76.

    High: 76 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Widespread frost, mainly before 8am. Otherwise, partly sunny, with a high near 50. Calm wind becoming southwest around 5 mph in the afternoon.
Tonight
Patchy frost after 10pm. Otherwise, increasing clouds, with a low around 33. Calm wind.
Friday
Patchy frost before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 57. Calm wind.
Friday Night
Partly cloudy, with a low around 36. Calm wind.
Saturday
Partly sunny, with a high near 65. Calm wind.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
A 20 percent chance of rain. Mostly cloudy, with a high near 69.
Sunday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 44.
Monday
A slight chance of rain after 11am. Mostly sunny, with a high near 76.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 47.
Tuesday
A chance of rain. Partly sunny, with a high near 68.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 45.
Wednesday
A chance of rain. Partly sunny, with a high near 60.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marblemount WA
 48.53°N 121.45°W (Elev. 699 ft)
Last Update:
1:20 am PDT Apr 16, 2026
Forecast Valid:
5am PDT Apr 16, 2026-6pm PDT Apr 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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