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Mountain Weather Forecast

Issued: 2:30 PM PST Monday, March 31, 2025
by Dennis D'Amico

Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather

Weather Synopsis for Monday night through Wednesday

Cool, mostly cloudy, and showery weather, especially for the west slopes of the Cascades, Mt Hood, and the Olympics, will persist through Wednesday as an offshore upper low slowly weakens and pushes inland. Widespread shower activity this afternoon should fade overnight, but moderate westerly ridgeline winds will continue in most areas. The nature of the showers makes it difficult to pinpoint who will see a trace and who might see 2-3" of new snow. 

Showers on Tuesday should be more concentrated near and along the west slopes of the Cascades from about I-90 and northward.  Further south, showers will be more scattered but there still be plenty of cloud cover. Moderate NW ridgeline winds will be the strongest near the central WA Cascades and south to Mt Hood. 

We'll be on the backside of a broad upper level trough covering the western third of the country Tuesday night and Wendesday.  An upper level disturbance sliding south over the area should lead to a brief Puget Sound convergence zone late Tuesday night through Wednesday morning. More mundane showers driven by day-time heating should take over for by Wednesday afternoon. Afternoon high temperatures will be slightly warmer east of the Cascade crest on Tuesday and Wednesday.

Weather Forecast

Olympics
Monday Night Mostly cloudy with light to moderate rain and snow showers becoming scattered showers after midnight. Light to moderate ridgeline winds.
Mostly cloudy with scattered light to occasionally moderate rain and snow showers. Light to moderate ridgeline winds.
West North
Monday Night Mostly cloudy with light to moderate rain and snow showers becoming scattered showers after midnight. Light to moderate ridgeline winds.
Mostly cloudy with scattered light to occasionally moderate rain and snow showers. Light to moderate ridgeline winds.
West Central
Monday Night Mostly cloudy with light to moderate rain and snow showers becoming scattered showers after midnight. Light to moderate ridgeline winds.
Mostly cloudy with light to moderate rain and snow showers. Light to moderate ridgeline winds.
West South
Monday Night Mostly cloudy with light to moderate rain and snow showers becoming scattered showers after midnight. Light to moderate ridgeline winds.
Mostly cloudy with light to moderate rain and snow showers. Moderate ridgeline winds.
Stevens Pass
Monday Night Mostly cloudy with light to moderate rain and snow showers becoming scattered showers after midnight. Light to moderate W ridgeline and Pass level winds.
Mostly cloudy with light to moderate rain and snow showers. Light to moderate ridgeline winds. Light to moderate W to NW ridgeline and Pass level winds increasing in the afternoon.
Snoqualmie Pass
Monday Night Mostly cloudy with light to moderate rain and snow showers becoming scattered showers after midnight. Light to moderate W ridgeline and Pass level winds.
Mostly cloudy with light to moderate rain and snow showers. Light to moderate W to NW ridgeline and Pass level winds increasing in the afternoon.
East North
Monday Night Mostly cloudy with light to moderate rain and snow showers becoming scattered showers after midnight. Light to moderate ridgeline winds.
Partly sunny to mostly cloudy with scattered light to occasionally moderate rain and snow showers. Cloudier skies near the Cascade crest. Light to moderate ridgeline winds.
East Central
Monday Night Mostly cloudy with light to moderate rain and snow showers becoming scattered showers after midnight. Light to moderate ridgeline winds.
Partly sunny to mostly cloudy with scattered light to occasionally moderate rain and snow showers. Cloudier skies near the Cascade crest. Moderate ridgeline winds.
East South
Monday Night Mostly cloudy with light to moderate rain and snow showers becoming scattered showers after midnight. Light to moderate ridgeline winds.
Partly sunny to mostly cloudy with scattered light to occasionally moderate rain and snow showers. Cloudier skies near the Cascade crest. Moderate ridgeline winds.
Mt. Hood
Monday Night Mostly cloudy with light to moderate rain and snow showers becoming scattered showers after midnight. Light to moderate ridgeline winds.
Partly sunny to mostly cloudy with scattered light to occasionally moderate rain and snow showers. Moderate ridgeline winds.

Snow/Freezing Level (ft)

Hurricane Ridge Mt. Baker Washington Pass Leavenworth Stevens Pass Snoqualmie Pass Mt. Rainier, Crystal & White Pass Mt. Hood
Monday Evening Snow Level None' None' None' None' 3000' 3000' None' 3000'
Monday Night Snow Level None' None' None' None' 2500' 2500' None' 2500'
Tuesday Morning Snow Level None' None' None' None' 3000' 3000' None' 3000'
Tuesday Afternoon Snow Level None' None' None' None' 4000' 3500' None' 4000'
Tuesday Evening Snow Level None' None' None' None' 3000' 3000' None' 3000'
Tuesday Night Snow Level None' None' None' None' 2500' 2500' None' 2500'
Wednesday Morning Snow Level None' None' None' None' 3000' 3000' None' 3000'
Hurricane Ridge Elevation
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
Wednesday Morning Snow Level
None'
Wednesday Afternoon Snow Level
None'
Mt. Baker Elevation
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
Wednesday Morning Snow Level
None'
Wednesday Afternoon Snow Level
None'
Washington Pass Elevation
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
Wednesday Morning Snow Level
None'
Wednesday Afternoon Snow Level
None'
Leavenworth Elevation
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
Wednesday Morning Snow Level
None'
Wednesday Afternoon Snow Level
None'
Stevens Pass Elevation
Monday Evening Snow Level
3000'
Monday Night Snow Level
2500'
Tuesday Morning Snow Level
3000'
Tuesday Afternoon Snow Level
4000'
Tuesday Evening Snow Level
3000'
Tuesday Night Snow Level
2500'
Wednesday Morning Snow Level
3000'
Wednesday Afternoon Snow Level
4000'
Snoqualmie Pass Elevation
Monday Evening Snow Level
3000'
Monday Night Snow Level
2500'
Tuesday Morning Snow Level
3000'
Tuesday Afternoon Snow Level
3500'
Tuesday Evening Snow Level
3000'
Tuesday Night Snow Level
2500'
Wednesday Morning Snow Level
3000'
Wednesday Afternoon Snow Level
3500'
Mt. Rainier & Crystal Elevation
Monday Evening Snow Level
None'
Monday Night Snow Level
None'
Tuesday Morning Snow Level
None'
Tuesday Afternoon Snow Level
None'
Tuesday Evening Snow Level
None'
Tuesday Night Snow Level
None'
Wednesday Morning Snow Level
None'
Wednesday Afternoon Snow Level
None'
Mt. Hood Elevation
Monday Evening Snow Level
3000'
Monday Night Snow Level
2500'
Tuesday Morning Snow Level
3000'
Tuesday Afternoon Snow Level
4000'
Tuesday Evening Snow Level
3000'
Tuesday Night Snow Level
2500'
Wednesday Morning Snow Level
3000'
Wednesday Afternoon Snow Level
4000'

* Easterly flow in the Cascade Passes can cause locally lower Snow or Freezing levels than areas further west.
Freezing Level is when no precipitation is forecast.

Precipitation Forecast

Monday Night Tuesday Tuesday Night Wednesday
5 pm - 5 am 5 am - 5 pm 5 pm - 5 am 5 am - 5 pm
Hurricane Ridge LT 0.25 LT 0.10 LT 0.10 LT 0.10
Mt Baker Ski Area LT 0.25 LT 0.10 LT 0.10 LT 0.10
Mt. Loop - Barlow Pass LT 0.25 LT 0.25 LT 0.25 LT 0.10
Stevens Pass LT 0.25 LT 0.25 LT 0.25 LT 0.10
Snoqualmie Pass LT 0.25 LT 0.25 LT 0.25 LT 0.10
Crystal Mt LT 0.10 LT 0.10 LT 0.10 LT 0.10
Paradise LT 0.25 LT 0.10 LT 0.25 LT 0.10
White Pass LT 0.10 LT 0.10 LT 0.10 LT 0.10
Washington Pass LT 0.10 LT 0.10 LT 0.10 LT 0.10
Mission Ridge LT 0.10 0 0 0
Salmon la Sac - Gallagher Head LT 0.10 LT 0.10 LT 0.10 LT 0.10
Tieton River - Darland Mt. LT 0.10 LT 0.10 LT 0.10 LT 0.10
Mt Hood Meadows LT 0.10 LT 0.10 LT 0.10 LT 0.10
LT 0.10 LT 0.10 LT 0.25 LT 0.10
Hurricane Ridge Precipitation Forecast
Monday Night LT 0.25
Tuesday LT 0.10
Tuesday Night LT 0.10
Wednesday LT 0.10
Mt Baker Ski Area Precipitation Forecast
Monday Night LT 0.25
Tuesday LT 0.10
Tuesday Night LT 0.10
Wednesday LT 0.10
Mt. Loop - Barlow Pass Precipitation Forecast
Monday Night LT 0.25
Tuesday LT 0.25
Tuesday Night LT 0.25
Wednesday LT 0.10
Stevens Pass Precipitation Forecast
Monday Night LT 0.25
Tuesday LT 0.25
Tuesday Night LT 0.25
Wednesday LT 0.10
Snoqualmie Pass Precipitation Forecast
Monday Night LT 0.25
Tuesday LT 0.25
Tuesday Night LT 0.25
Wednesday LT 0.10
Crystal Mt Precipitation Forecast
Monday Night LT 0.10
Tuesday LT 0.10
Tuesday Night LT 0.10
Wednesday LT 0.10
Paradise Precipitation Forecast
Monday Night LT 0.25
Tuesday LT 0.10
Tuesday Night LT 0.25
Wednesday LT 0.10
White Pass Precipitation Forecast
Monday Night LT 0.10
Tuesday LT 0.10
Tuesday Night LT 0.10
Wednesday LT 0.10
Washington Pass Precipitation Forecast
Monday Night LT 0.10
Tuesday LT 0.10
Tuesday Night LT 0.10
Wednesday LT 0.10
Mission Ridge Precipitation Forecast
Monday Night LT 0.10
Tuesday 0
Tuesday Night 0
Wednesday 0
Salmon la Sac - Gallagher Head Precipitation Forecast
Monday Night LT 0.10
Tuesday LT 0.10
Tuesday Night LT 0.10
Wednesday LT 0.10
Tieton River - Darland Mt. Precipitation Forecast
Monday Night LT 0.10
Tuesday LT 0.10
Tuesday Night LT 0.10
Wednesday LT 0.10
Mt Hood Meadows Precipitation Forecast
Monday Night LT 0.10
Tuesday LT 0.10
Tuesday Night LT 0.10
Wednesday LT 0.10
Timberline Precipitation Forecast
Monday Night LT 0.10
Tuesday LT 0.10
Tuesday Night LT 0.25
Wednesday LT 0.10

Free Winds at 5000' (mph)

Hurricane Ridge Mt. Baker Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Monday Evening --- None - None --- None - None --- None - None --- None - None W None - None
Monday Night --- None - None --- None - None --- None - None --- None - None W None - None
Tuesday Morning --- None - None --- None - None --- None - None --- None - None NW None - None
Hurricane Ridge Elevation
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Baker Elevation
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Stevens and Snoqualmie Pass Elevation
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Rainier Elevation
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Hood Elevation
Monday Evening W None - None
Monday Night W None - None
Tuesday Morning NW None - None
Tuesday Afternoon NW None - None
Hurricane Ridge Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Baker Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Stevens and Snoqualmie Pass Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Rainier Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Hood Direction - Speed
Monday Evening W None - None
Monday Night W None - None
Tuesday Morning NW None - None
Tuesday Afternoon NW None - None

Directions above indicate the direction the wind blows from on the 16-point cardinal scale. These winds indicate "free" winds, or those winds in the atmosphere not influenced by terrain. Topographical effects may produce greater or lower wind speeds in certain locations as well as significant variations in direction.

Free Winds at 9000' (mph)

Mt. Baker Washington Pass Stevens to Snoqualmie Pass Mt. Rainier Mt. Hood
Monday Evening --- None - None --- None - None --- None - None --- None - None --- None - None
Monday Night --- None - None --- None - None --- None - None --- None - None --- None - None
Tuesday Morning --- None - None --- None - None --- None - None --- None - None --- None - None
Mt. Baker Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Washington Pass Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Stevens and Snoqualmie Pass Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Rainier Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None
Mt. Hood Direction - Speed
Monday Evening --- None - None
Monday Night --- None - None
Tuesday Morning --- None - None
Tuesday Afternoon --- None - None

Extended Weather Synopsis for Wednesday night through Friday

Thursday will be a transition day as the broad upper trough moves further inland and strong upper level ridging offshore inches closer.  With northerly flow aloft, we may see a stray afternoon mountain shower, but expect more cloud cover in the morning, and more cloud cover in general for the northern half of the forecast area and clearer skies further south. The ridge will become the dominant large-scale weather feature on Friday, and we'll see a noticeable shift towards increased sunshine as freezing levels rise to 6000-7000 feet in the afternoon. 

Extended Snow/Freezing Levels

Mt. Baker Snoqualmie Pass Mt. Hood Easterly Flow *
Wednesday Night Snow Level None' - None' None' - None' None' - None'
Thursday Snow Level None' - None' None' - None' None' - None'
Thursday Night Snow Level None' - None' None' - None' None' - None'
Mt. Baker Elevation
Wednesday Night Snow Level
None' - None'
Thursday Snow Level
None' - None'
Thursday Night Snow Level
None' - None'
Friday Snow Level
None' - None'
Snoqualmie Pass Elevation
Wednesday Night Snow Level
None' - None'
Thursday Snow Level
None' - None'
Thursday Night Snow Level
None' - None'
Friday Snow Level
None' - None'
Mt. Hood Elevation
Wednesday Night Snow Level
None' - None'
Thursday Snow Level
None' - None'
Thursday Night Snow Level
None' - None'
Friday Snow Level
None' - None'

* Easterly flow in the Cascade Passes can cause locally lower Snow or Freezing levels than areas further west.
Freezing Level is when no precipitation is forecast.

Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I Free Winds 9k I Extended Weather

Previous forecast from March 31, 2025

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