Mountain Weather Forecast
Jump to: Weather Forecast I Snow/Freezing Level I Precipitation I Free Winds 5k I I Extended Weather
Weather Synopsis for Tuesday night through Thursday
Foo!
415pm Update: Increased precipitation forecast for West Central tonight
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
| Tuesday Night | Mostly cloudy with light to moderate rain and snow showers becoming scattered showers after midnight. Light to moderate ridgeline winds. |
| Wednesday | Mostly cloudy with scattered light to occasionally moderate rain and snow showers. Light to moderate ridgeline winds. |
West North
| Tuesday Night | Mostly cloudy with light to moderate rain and snow showers becoming scattered showers after midnight. Light to moderate ridgeline winds. |
| Wednesday | Mostly cloudy with scattered light to occasionally moderate rain and snow showers. Light to moderate ridgeline winds. |
West Central
| Tuesday Night | Mostly cloudy with light to moderate rain and snow showers. Light to moderate ridgeline winds. |
| Wednesday | Mostly cloudy with light to moderate rain and snow showers. Light to moderate ridgeline winds. |
West South
| Tuesday Night | Mostly cloudy with light to moderate rain and snow showers becoming scattered showers after midnight. Light to moderate ridgeline winds. |
| Wednesday | Mostly cloudy with light to moderate rain and snow showers. Moderate ridgeline winds. |
Stevens Pass
| Tuesday 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. |
| Wednesday | 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
| Tuesday 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. |
| Wednesday | 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
| Tuesday Night | Mostly cloudy with light to moderate rain and snow showers becoming scattered showers after midnight. Light to moderate ridgeline winds. |
| Wednesday | 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
| Tuesday Night | Mostly cloudy with light to moderate rain and snow showers becoming scattered showers after midnight. Light to moderate ridgeline winds. |
| Wednesday | 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
| Tuesday Night | Mostly cloudy with light to moderate rain and snow showers becoming scattered showers after midnight. Light to moderate ridgeline winds. |
| Wednesday | 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
| Tuesday Night | Mostly cloudy with light to moderate rain and snow showers becoming scattered showers after midnight. Light to moderate ridgeline winds. |
| Wednesday | Partly sunny to mostly cloudy with scattered light to occasionally moderate rain and snow showers. Moderate ridgeline winds. |
Issued: 11:39 AM PST Tuesday, September 30, 2025
Snow/Freezing Level (ft)
| Hurricane Ridge | Mt. Baker | Washington Pass | Leavenworth | Stevens Pass | Snoqualmie Pass | Mt. Rainier, Crystal & White Pass | Mt. Hood | ||
|---|---|---|---|---|---|---|---|---|---|
| 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' |
| Wednesday Afternoon | Snow Level | None' | None' | None' | None' | 4000' | 3500' | None' | 4000' |
| Wednesday Evening | Snow Level | None' | None' | None' | None' | 3000' | 3000' | None' | 3000' |
| Wednesday Night | Snow Level | None' | None' | None' | None' | 2500' | 2500' | None' | 2500' |
| Thursday Morning | Snow Level | None' | None' | None' | None' | 3000' | 3000' | None' | 3000' |
| Thursday Afternoon | Snow Level | None' | None' | None' | None' | 4000' | 3500' | None' | 4000' |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Evening |
Snow Level None' |
| Tuesday Night |
Snow Level None' |
| Wednesday Morning |
Snow Level None' |
| Wednesday Afternoon |
Snow Level None' |
| Wednesday Evening |
Snow Level None' |
| Wednesday Night |
Snow Level None' |
| Thursday Morning |
Snow Level None' |
| Thursday Afternoon |
Snow Level None' |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Evening |
Snow Level None' |
| Tuesday Night |
Snow Level None' |
| Wednesday Morning |
Snow Level None' |
| Wednesday Afternoon |
Snow Level None' |
| Wednesday Evening |
Snow Level None' |
| Wednesday Night |
Snow Level None' |
| Thursday Morning |
Snow Level None' |
| Thursday Afternoon |
Snow Level None' |
| Washington Pass | Elevation |
|---|---|
| Tuesday Evening |
Snow Level None' |
| Tuesday Night |
Snow Level None' |
| Wednesday Morning |
Snow Level None' |
| Wednesday Afternoon |
Snow Level None' |
| Wednesday Evening |
Snow Level None' |
| Wednesday Night |
Snow Level None' |
| Thursday Morning |
Snow Level None' |
| Thursday Afternoon |
Snow Level None' |
| Leavenworth | Elevation |
|---|---|
| Tuesday Evening |
Snow Level None' |
| Tuesday Night |
Snow Level None' |
| Wednesday Morning |
Snow Level None' |
| Wednesday Afternoon |
Snow Level None' |
| Wednesday Evening |
Snow Level None' |
| Wednesday Night |
Snow Level None' |
| Thursday Morning |
Snow Level None' |
| Thursday Afternoon |
Snow Level None' |
| Stevens Pass | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 3000' |
| Tuesday Night |
Snow Level 2500' |
| Wednesday Morning |
Snow Level 3000' |
| Wednesday Afternoon |
Snow Level 4000' |
| Wednesday Evening |
Snow Level 3000' |
| Wednesday Night |
Snow Level 2500' |
| Thursday Morning |
Snow Level 3000' |
| Thursday Afternoon |
Snow Level 4000' |
| Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 3000' |
| Tuesday Night |
Snow Level 2500' |
| Wednesday Morning |
Snow Level 3000' |
| Wednesday Afternoon |
Snow Level 3500' |
| Wednesday Evening |
Snow Level 3000' |
| Wednesday Night |
Snow Level 2500' |
| Thursday Morning |
Snow Level 3000' |
| Thursday Afternoon |
Snow Level 3500' |
| Mt. Rainier & Crystal | Elevation |
|---|---|
| Tuesday Evening |
Snow Level None' |
| Tuesday Night |
Snow Level None' |
| Wednesday Morning |
Snow Level None' |
| Wednesday Afternoon |
Snow Level None' |
| Wednesday Evening |
Snow Level None' |
| Wednesday Night |
Snow Level None' |
| Thursday Morning |
Snow Level None' |
| Thursday Afternoon |
Snow Level None' |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Evening |
Snow Level 3000' |
| Tuesday Night |
Snow Level 2500' |
| Wednesday Morning |
Snow Level 3000' |
| Wednesday Afternoon |
Snow Level 4000' |
| Wednesday Evening |
Snow Level 3000' |
| Wednesday Night |
Snow Level 2500' |
| Thursday Morning |
Snow Level 3000' |
| Thursday 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
| Tuesday Night | Wednesday | Wednesday Night | Thursday | |
|---|---|---|---|---|
| 5 pm - 5 am | 5 am - 5 pm | 5 pm - 5 am | 5 am - 5 pm | |
| Hurricane Ridge | LT 0.25 | 0.25 | LT 0.25 | 0.25 |
| Mt Baker Ski Area | 0.50 | LT 0.10 | 0.25 | LT 0.25 |
| Mt. Loop - Barlow Pass | 0.25 - 0.50 | 0.25 | LT 0.25 | 0 |
| Stevens Pass | LT 0.10 | LT 0.25 | LT 0.10 | LT 0.10 |
| Snoqualmie Pass | LT 0.25 | 0.25 | LT 0.10 | LT 0.10 |
| Crystal Mt | 0.25 - 0.50 | 0.50 | LT 0.10 | 0 |
| Paradise | 0.75 - 1.00 | 0.75 - 1.00 | 0.25 | LT 0.10 |
| White Pass | LT 0.10 | LT 0.10 | 0 | LT 0.10 |
| Washington Pass | LT 0.25 | LT 0.10 | LT 0.10 | 0 |
| Mission Ridge | LT 0.10 | LT 0.10 | LT 0.10 | LT 0.25 |
| Salmon la Sac - Gallagher Head | LT 0.25 | 0.25 | 0 | 0 |
| Tieton River - Darland Mt. | LT 0.10 | LT 0.25 | 0 | LT 0.25 |
| Mt Hood Meadows | LT 0.25 | LT 0.10 | LT 0.25 | LT 0.10 |
| Timberline | LT 0.25 | LT 0.10 | LT 0.25 | LT 0.10 |
| Hurricane Ridge | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.25 |
| Wednesday | 0.25 |
| Wednesday Night | LT 0.25 |
| Thursday | 0.25 |
| Mt Baker Ski Area | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.50 |
| Wednesday | LT 0.10 |
| Wednesday Night | 0.25 |
| Thursday | LT 0.25 |
| Mt. Loop - Barlow Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.25 - 0.50 |
| Wednesday | 0.25 |
| Wednesday Night | LT 0.25 |
| Thursday | 0 |
| Stevens Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.10 |
| Wednesday | LT 0.25 |
| Wednesday Night | LT 0.10 |
| Thursday | LT 0.10 |
| Snoqualmie Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.25 |
| Wednesday | 0.25 |
| Wednesday Night | LT 0.10 |
| Thursday | LT 0.10 |
| Crystal Mt | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.25 - 0.50 |
| Wednesday | 0.50 |
| Wednesday Night | LT 0.10 |
| Thursday | 0 |
| Paradise | Precipitation Forecast |
|---|---|
| Tuesday Night | 0.75 - 1.00 |
| Wednesday | 0.75 - 1.00 |
| Wednesday Night | 0.25 |
| Thursday | LT 0.10 |
| White Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.10 |
| Wednesday | LT 0.10 |
| Wednesday Night | 0 |
| Thursday | LT 0.10 |
| Washington Pass | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.25 |
| Wednesday | LT 0.10 |
| Wednesday Night | LT 0.10 |
| Thursday | 0 |
| Mission Ridge | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.10 |
| Wednesday | LT 0.10 |
| Wednesday Night | LT 0.10 |
| Thursday | LT 0.25 |
| Salmon la Sac - Gallagher Head | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.25 |
| Wednesday | 0.25 |
| Wednesday Night | 0 |
| Thursday | 0 |
| Tieton River - Darland Mt. | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.10 |
| Wednesday | LT 0.25 |
| Wednesday Night | 0 |
| Thursday | LT 0.25 |
| Mt Hood Meadows | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.25 |
| Wednesday | LT 0.10 |
| Wednesday Night | LT 0.25 |
| Thursday | LT 0.10 |
| Timberline | Precipitation Forecast |
|---|---|
| Tuesday Night | LT 0.25 |
| Wednesday | LT 0.10 |
| Wednesday Night | LT 0.25 |
| Thursday | LT 0.10 |
LT = less than; WE or Water equivalent is the liquid water equivalent of melted snow in hundredths of inches. As a rough approximation 1 inch of snow = about .10 inches WE, or 10 inches of snow = about 1 inch WE.
Issued: 11:39 AM PST Tuesday, September 30, 2025
Free Winds at 5000' (mph)
| Hurricane Ridge | Mt. Baker | Stevens to Snoqualmie Pass | Mt. Rainier | Mt. Hood | |
|---|---|---|---|---|---|
| Tuesday Evening | --- None - None | --- None - None | --- None - None | --- None - None | WSW None - None |
| Tuesday Night | --- None - None | --- None - None | --- None - None | --- None - None | SW None - None |
| Wednesday Morning | --- None - None | --- None - None | --- None - None | --- None - None | SSW None - None |
| Wednesday Afternoon | --- None - None | --- None - None | --- None - None | --- None - None | SW None - None |
| Hurricane Ridge | Elevation |
|---|---|
| Tuesday Evening | --- None - None |
| Tuesday Night | --- None - None |
| Wednesday Morning | --- None - None |
| Wednesday Afternoon | --- None - None |
| Mt. Baker | Elevation |
|---|---|
| Tuesday Evening | --- None - None |
| Tuesday Night | --- None - None |
| Wednesday Morning | --- None - None |
| Wednesday Afternoon | --- None - None |
| Stevens and Snoqualmie Pass | Elevation |
|---|---|
| Tuesday Evening | --- None - None |
| Tuesday Night | --- None - None |
| Wednesday Morning | --- None - None |
| Wednesday Afternoon | --- None - None |
| Mt. Rainier | Elevation |
|---|---|
| Tuesday Evening | --- None - None |
| Tuesday Night | --- None - None |
| Wednesday Morning | --- None - None |
| Wednesday Afternoon | --- None - None |
| Mt. Hood | Elevation |
|---|---|
| Tuesday Evening | WSW None - None |
| Tuesday Night | SW None - None |
| Wednesday Morning | SSW None - None |
| Wednesday Afternoon | SW None - None |
| Hurricane Ridge | Direction - Speed |
|---|---|
| Tuesday Evening | --- None - None |
| Tuesday Night | --- None - None |
| Wednesday Morning | --- None - None |
| Wednesday Afternoon | --- None - None |
| Mt. Baker | Direction - Speed |
|---|---|
| Tuesday Evening | --- None - None |
| Tuesday Night | --- None - None |
| Wednesday Morning | --- None - None |
| Wednesday Afternoon | --- None - None |
| Stevens and Snoqualmie Pass | Direction - Speed |
|---|---|
| Tuesday Evening | --- None - None |
| Tuesday Night | --- None - None |
| Wednesday Morning | --- None - None |
| Wednesday Afternoon | --- None - None |
| Mt. Rainier | Direction - Speed |
|---|---|
| Tuesday Evening | --- None - None |
| Tuesday Night | --- None - None |
| Wednesday Morning | --- None - None |
| Wednesday Afternoon | --- None - None |
| Mt. Hood | Direction - Speed |
|---|---|
| Tuesday Evening | WSW None - None |
| Tuesday Night | SW None - None |
| Wednesday Morning | SSW None - None |
| Wednesday Afternoon | SW 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.
Issued: 11:39 AM PST Tuesday, September 30, 2025
Extended Weather Synopsis for Thursday night through Saturday
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 * | ||
|---|---|---|---|---|---|
| Thursday Night | Snow Level | None' - None' | None' - None' | None' - None' | |
| Friday | Snow Level | None' - None' | None' - None' | None' - None' | |
| Friday Night | Snow Level | None' - None' | None' - None' | None' - None' | |
| Saturday | Snow Level | None' - None' | None' - None' | None' - None' |
| Mt. Baker | Elevation |
|---|---|
| Thursday Night |
Snow Level None' - None' |
| Friday |
Snow Level None' - None' |
| Friday Night |
Snow Level None' - None' |
| Saturday |
Snow Level None' - None' |
| Snoqualmie Pass | Elevation |
|---|---|
| Thursday Night |
Snow Level None' - None' |
| Friday |
Snow Level None' - None' |
| Friday Night |
Snow Level None' - None' |
| Saturday |
Snow Level None' - None' |
| Mt. Hood | Elevation |
|---|---|
| Thursday Night |
Snow Level None' - None' |
| Friday |
Snow Level None' - None' |
| Friday Night |
Snow Level None' - None' |
| Saturday |
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 I Extended Weather
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