Tracking a Winter Storm; Unusual Early-Season Heat Wave in the Southwest

A major winter storm will organize across the Northern Plains today and then rapidly strengthen as it moves into the Great Lakes on Sunday. Heavy snow and blowing snow are likely to persist over the Great Lakes into Monday night. Dry and gusty winds will produce a critical fire risk across the central/southern Plains. An early heatwave will begin to intensify over the western U.S. into next week. Read More >

Hazardous Weather Conditions

Current conditions at

Snoqualmie Pass (SNO30)

Lat: 47.42487°NLon: 121.41395°WElev: 3010.0ft.

NA

22°F

-6°C

Humidity 93%
Wind Speed NA NA MPH
Barometer 30.35 in (1027.77 mb)
Dewpoint 21°F (-6°C)
Visibility NA
Last update 15 Mar 02:00 AM PDT
Extended Forecast for

15 Miles N Roslyn WA

  • Overnight

    Overnight: Mostly cloudy, with a low around 16. Light north wind.

    Low: 16 °F

    Mostly Cloudy

  • Sunday

    Sunday: Snow, mainly after 5pm.  High near 36. Light and variable wind becoming south around 6 mph in the morning.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Mostly Cloudy
    then Snow

  • Sunday Night

    Sunday Night: Snow, possibly mixed with rain, becoming all rain after 2am.  Low around 29. West wind 3 to 6 mph.  Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    Low: 29 °F

    Rain/Snow

  • Monday

    Monday: Rain.  High near 46. West wind around 8 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Rain

  • Monday Night

    Monday Night: Rain likely, mainly after 11pm.  Mostly cloudy, with a low around 37. West wind 7 to 10 mph, with gusts as high as 23 mph.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 37 °F

    Rain Likely

  • Tuesday

    Tuesday: Rain.  High near 47. Chance of precipitation is 90%.

    High: 47 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Low around 39. Chance of precipitation is 90%.

    Low: 39 °F

    Rain

  • Wednesday

    Wednesday: Rain.  High near 45. Chance of precipitation is 90%.

    High: 45 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain.  Low around 39. Chance of precipitation is 90%.

    Low: 39 °F

    Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 16. Light north wind.
Sunday
Snow, mainly after 5pm. High near 36. Light and variable wind becoming south around 6 mph in the morning. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow, possibly mixed with rain, becoming all rain after 2am. Low around 29. West wind 3 to 6 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Monday
Rain. High near 46. West wind around 8 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 37. West wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Rain. High near 47. Chance of precipitation is 90%.
Tuesday Night
Rain. Low around 39. Chance of precipitation is 90%.
Wednesday
Rain. High near 45. Chance of precipitation is 90%.
Wednesday Night
Rain. Low around 39. Chance of precipitation is 90%.
Thursday
Rain. Mostly cloudy, with a high near 48.
Thursday Night
Rain likely. Mostly cloudy, with a low around 38.
Friday
Rain likely. Mostly cloudy, with a high near 51.
Friday Night
A chance of rain and snow. Mostly cloudy, with a low around 37.
Saturday
A chance of rain and snow. Partly sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles N Roslyn WA
 47.46°N 121.04°W (Elev. 3602 ft)
2:30 am PDT Mar 15, 2026
3am PDT Mar 15, 2026-6pm PDT Mar 21, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database