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

Tracking Late Season Winter Storms; Unusual Early-Season Heat Wave in the Southwest

Heavy snow and high winds continue in the Great Lakes and Northeast. A moderate atmospheric river will continue to bring heavy precipitation to the Pacific Northwest and northern Rockies. A major winter storm will develop across the northern High Plains tonight into Saturday and rapidly strengthen as it moves into the Great Lakes on Sunday. Above-average temperatures expected in the Southwest. Read More >

Hazardous Weather Conditions

Current conditions at

SAWMILL FLATS (MEFW1)

Lat: 46.9675°NLon: 121.08444°WElev: 3000.0ft.

NA

32°F

0°C

Humidity 100%
Wind Speed NNE 1 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 13 Mar 10:25 PM PDT
Extended Forecast for

Chinook Pass WA

Winter Storm Warning March 13, 10:50pm until March 14, 05:00am
Click here for hazard details and duration
Winter Storm Warning
  •  
    Winter Storm Warning March 13, 10:50pm until March 14, 05:00am

    NOW until 5:00am Sat

    Winter Storm Warning

  • Tonight

    Low: 16 °F

    Heavy Snow

  • Saturday

    Saturday: Snow likely, mainly before 8am. Partly sunny, with a high near 22. Wind chill values as low as zero. West wind around 18 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 22 °F

    Snow Likely
    then Chance
    Snow

  • Saturday Night

    Saturday Night: A 40 percent chance of snow before 11pm. Mostly cloudy, with a low around 14. Northwest wind 7 to 16 mph becoming southwest after midnight. Winds could gust as high as 39 mph.

    Low: 14 °F

    Chance Snow
    then Mostly
    Cloudy

  • Sunday

    Sunday: Snow likely, mainly after 11am. Mostly cloudy, with a high near 31. South wind around 7 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 31 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Snow before 11pm, then rain likely, possibly mixed with snow. Low around 29. Southwest wind 7 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 29 °F

    Rain/Snow
    then
    Rain/Snow
    Likely

  • Monday

    Monday: Rain likely, possibly mixed with snow before 8am, then rain. High near 38. Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 38 °F

    Rain/Snow
    then Rain

  • Monday Night

    Monday Night: Rain likely. Mostly cloudy, with a low around 33. Chance of precipitation is 70%.

    Low: 33 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain. High near 40. Chance of precipitation is 90%.

    High: 40 °F

    Rain

Detailed Forecast

Tonight
Snow, mainly before 2am. The snow could be heavy at times. Low around 16. West wind 9 to 14 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of 6 to 10 inches possible.
Saturday
Snow likely, mainly before 8am. Partly sunny, with a high near 22. Wind chill values as low as zero. West wind around 18 mph, with gusts as high as 45 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Saturday Night
A 40 percent chance of snow before 11pm. Mostly cloudy, with a low around 14. Northwest wind 7 to 16 mph becoming southwest after midnight. Winds could gust as high as 39 mph.
Sunday
Snow likely, mainly after 11am. Mostly cloudy, with a high near 31. South wind around 7 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Sunday Night
Snow before 11pm, then rain likely, possibly mixed with snow. Low around 29. Southwest wind 7 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Monday
Rain likely, possibly mixed with snow before 8am, then rain. High near 38. Chance of precipitation is 80%. Little or no snow accumulation expected.
Monday Night
Rain likely. Mostly cloudy, with a low around 33. Chance of precipitation is 70%.
Tuesday
Rain. High near 40. Chance of precipitation is 90%.
Tuesday Night
Rain. Low around 35. Chance of precipitation is 80%.
Wednesday
Rain likely. Mostly cloudy, with a high near 40.
Wednesday Night
Rain. Mostly cloudy, with a low around 36.
Thursday
Rain likely. Mostly cloudy, with a high near 41.
Thursday Night
Rain and snow likely. Mostly cloudy, with a low around 35.
Friday
A chance of rain and snow. Partly sunny, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chinook Pass WA
 46.88°N 121.5°W (Elev. 4823 ft)
Last Update:
10:45 pm PDT Mar 13, 2026
Forecast Valid:
10pm PDT Mar 13, 2026-6pm PDT Mar 20, 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