Issued: 2:13 PM PDT Sunday, April 5, 2026
by Dallas Glass

Jump to: Weather Forecast I Precipitation I Snow Level I 5000' Temps I Ridgeline Winds I Extended Weather

Weather Synopsis

It's another very warm and sunny spring day across the region. Most weather stations are reporting temperatures in the mid to upper 50s, with a few hitting 60F! Wow, that's hot! High thin clouds and easterly winds are most pronounced from about I-90 south along the spine of the Cascades. A high pressure ridge parked over the Pacific Northwest should keep us dry from most, if not all, of the week. 

Sunday night will be mostly clear with a few high clouds. While temperatures will cool, they should stay well above freezing. Weak inversions may form in the mountain valleys and passes, but even these spots won't dip below 32 F. Expect easterly winds to gradually decrease and turn SW-W overnight. The Passes will be the last to hold on, but should also shift to westerlies in the early morning hours. 

A storm system passes to our north on Monday, causing the high pressure ridge to bend but not break. The most noticeable difference will be the increasing winds. Look for gusty westerly winds to strengthen throughout the day. With onshore (west) flow, temperatures east of the Cascade crest could peak several degrees warmer than they did over the weekend. All forecast zones should once again see 5000ft temperatures topping out in the 50s or even nipping at 60 F. 

Low and mid clouds may arrive very late in the day or right around dinner time as the storm passes along the Canadian border. There could be a few sprinkles or flurries, but they shouldn't amount to much, and likely won't even register at the weather stations. Winds continue to increase Monday night as colder air moves into the region. Freezing levels should dip low enough to allow most trailheads to drop to near or just below freezing.

Sunshine and lighter winds return on Tuesday as NW winds usher in colder, drier air into the area. This will mark the start of a long, gradual warming trend through the remainder of the week. 

 

Weather Forecast

Olympics
West North
West Central
West South
Stevens Pass
Snoqualmie Pass
East North
East Central
East South
Mt. Hood
Use dropdown to select your zone
Sunday Night Mostly clear with high thin clouds. Warm.
Monday Mostly sunny with high thin clouds. Warm. Winds becoming WSW light to moderate.
Sunday Night Mostly clear with high thin clouds. Warm.
Monday Partly to mostly sunny with mainly high clouds. Warm. Light to moderate SSW winds becoming SW moderate and gusty.
Sunday Night Mostly clear with high thin clouds. Warm.
Monday Mostly sunny in the morning with passing high clouds. Warm. Low clouds increasing late in the day. SW winds becoming light to moderate.
Sunday Night Mostly clear with high thin clouds. Warm.
Monday Mostly sunny with a few passing clouds. Warm. WSW winds becoming light to moderate.
Sunday Night Mostly clear with high thin clouds. Warm. Light E flow at pass level decreasing overnight.
Monday Mostly sunny with passing high clouds. Warm. Pass level flow becoming W in the morning. W ridgeline winds becoming light to moderate. Low and mid clouds increasing late in the day.
Sunday Night Mostly clear with high thin clouds. Warm. Light E flow at pass level decreasing in the early morning hours.
Monday Mostly sunny with passing high clouds. Warm. Pass level flow becoming W. W ridgeline winds increasing to light to moderate. Low and mid clouds increasing late in the day.
Sunday Night Mostly clear with high thin clouds. Warm.
Monday Mostly sunny with passing bands of high clouds. Warm. SW winds becoming light to moderate. Low and mid clouds increasing late in the day.
Sunday Night Mostly clear with high thin clouds. Warm.
Monday Mostly sunny with passing bands of high clouds. Warm. Winds becoming moderate and gusty out of the W. Low and mid clouds increasing late in the day.
Sunday Night Mostly clear with high thin clouds. Warm.
Monday Mostly sunny with a few high clouds. Warm. W winds becoming moderate and gusty.
Sunday Night Mostly clear with high thin clouds. Warm.
Monday Mostly sunny with a few high clouds. Warm WSW winds increasing from light to moderate and gusty.

Precipitation (in)

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

Snow Level (ft)

Sunday Evening* Sunday Night* Monday Morning Monday Afternoon Monday Evening Monday Night Tuesday Morning Tuesday Afternoon
Olympics 10000' 9500' 9500' 8500' 7500' 4000' 3500' 4500'
West North 9500' 9500' 9000' 8000' 7000' 4500' 3000' 4000'
West Central 10000' 10000' 9500' 9000' 7500' 4500' 3000' 4000'
West South 10000' 10000' 10000' 9500' 9000' 5500' 3000' 5500'
Stevens Pass 10000' 10000' 9500' 9000' 8000' 5000' 3000' 4500'
Snoqualmie Pass 10000' 10000' 9500' 9000' 8500' 5000' 3000' 4500'
East North 10000' 9500' 9500' 8500' 7000' 5500' 3500' 5500'
East Central 10000' 1000' 9500' 9500' 9000' 6500' 3500' 5500'
East South 10000' 10000' 10000' 9500' 9000' 6500' 4000' 6000'
Mt. Hood 10500' 10000' 10000' 10000' 10000' 9000' 4000' 5500'
Olympics Elevation
Sunday Evening* 10000'
Sunday Night* 9500'
Monday Morning 9500'
Monday Afternoon 8500'
Monday Evening 7500'
Monday Night 4000'
Tuesday Morning 3500'
Tuesday Afternoon 4500'
West North Elevation
Sunday Evening* 9500'
Sunday Night* 9500'
Monday Morning 9000'
Monday Afternoon 8000'
Monday Evening 7000'
Monday Night 4500'
Tuesday Morning 3000'
Tuesday Afternoon 4000'
West Central Elevation
Sunday Evening* 10000'
Sunday Night* 10000'
Monday Morning 9500'
Monday Afternoon 9000'
Monday Evening 7500'
Monday Night 4500'
Tuesday Morning 3000'
Tuesday Afternoon 4000'
West South Elevation
Sunday Evening* 10000'
Sunday Night* 10000'
Monday Morning 10000'
Monday Afternoon 9500'
Monday Evening 9000'
Monday Night 5500'
Tuesday Morning 3000'
Tuesday Afternoon 5500'
Stevens Pass Elevation
Sunday Evening* 10000'
Sunday Night* 10000'
Monday Morning 9500'
Monday Afternoon 9000'
Monday Evening 8000'
Monday Night 5000'
Tuesday Morning 3000'
Tuesday Afternoon 4500'
Snoqualmie Pass Elevation
Sunday Evening* 10000'
Sunday Night* 10000'
Monday Morning 9500'
Monday Afternoon 9000'
Monday Evening 8500'
Monday Night 5000'
Tuesday Morning 3000'
Tuesday Afternoon 4500'
East North Elevation
Sunday Evening* 10000'
Sunday Night* 9500'
Monday Morning 9500'
Monday Afternoon 8500'
Monday Evening 7000'
Monday Night 5500'
Tuesday Morning 3500'
Tuesday Afternoon 5500'
East Central Elevation
Sunday Evening* 10000'
Sunday Night* 1000'
Monday Morning 9500'
Monday Afternoon 9500'
Monday Evening 9000'
Monday Night 6500'
Tuesday Morning 3500'
Tuesday Afternoon 5500'
East South Elevation
Sunday Evening* 10000'
Sunday Night* 10000'
Monday Morning 10000'
Monday Afternoon 9500'
Monday Evening 9000'
Monday Night 6500'
Tuesday Morning 4000'
Tuesday Afternoon 6000'
Mt. Hood Elevation
Sunday Evening* 10500'
Sunday Night* 10000'
Monday Morning 10000'
Monday Afternoon 10000'
Monday Evening 10000'
Monday Night 9000'
Tuesday Morning 4000'
Tuesday Afternoon 5500'

5000' Temperatures (°F)

Sunday Night Monday
Max / Min Max / Min
Olympics 56 / 41 55 / 42
West North 58 / 41 53 / 41
West Central 57 / 41 52 / 42
West South 55 / 40 56 / 41
Stevens Pass 52 / 39 54 / 39
Snoqualmie Pass 54 / 39 52 / 40
East North 49 / 38 50 / 40
East Central 48 / 43 53 / 42
East South 54 / 42 59 / 40
Mt. Hood 55 / 44 60 / 45
Olympics 5000' Temperature Forecast
(Max / Min)
Sunday Night 56 / 41
Monday 55 / 42
West North 5000' Temperature Forecast
(Max / Min)
Sunday Night 58 / 41
Monday 53 / 41
West Central 5000' Temperature Forecast
(Max / Min)
Sunday Night 57 / 41
Monday 52 / 42
West South 5000' Temperature Forecast
(Max / Min)
Sunday Night 55 / 40
Monday 56 / 41
Stevens Pass 5000' Temperature Forecast
(Max / Min)
Sunday Night 52 / 39
Monday 54 / 39
Snoqualmie Pass 5000' Temperature Forecast
(Max / Min)
Sunday Night 54 / 39
Monday 52 / 40
East North 5000' Temperature Forecast
(Max / Min)
Sunday Night 49 / 38
Monday 50 / 40
East Central 5000' Temperature Forecast
(Max / Min)
Sunday Night 48 / 43
Monday 53 / 42
East South 5000' Temperature Forecast
(Max / Min)
Sunday Night 54 / 42
Monday 59 / 40
Mt. Hood 5000' Temperature Forecast
(Max / Min)
Sunday Night 55 / 44
Monday 60 / 45

Ridgeline Winds (mph)

Sunday Evening Sunday Night Monday Morning Monday Afternoon
Olympics S 0-10 SW 5-15 SW 5-15 WSW 10-20
West North S 5-15 SSW 5-15 SSW 10-20 SW 15-25
West Central SE 5-15 SSW 5-15 SW 5-15 SW 10-20
West South SSE 5-15 WSW 5-15 WSW 5-15 WSW 10-20
Stevens Pass ESE 5-15 SW 5-15 WSW 5-15 W 10-20
Snoqualmie Pass ESE 5-15 SW 5-15 W 5-15 W 10-20
East North SSE 0-10 SW 5-15 SW 5-15 SW 10-20
East Central SSE 5-15 WSW 5-15 W 5-15 WSW 15-25
East South S 5-15 WSW 5-15 W 5-15 W 15-25
Mt. Hood SW 5-15 SW 5-15 WSW 10-20 WSW 15-25
Olympics Ridgeline Winds (mph)
Sunday Evening S 0-10
Sunday Night SW 5-15
Monday Morning SW 5-15
Monday Afternoon WSW 10-20
West North Ridgeline Winds (mph)
Sunday Evening S 5-15
Sunday Night SSW 5-15
Monday Morning SSW 10-20
Monday Afternoon SW 15-25
West Central Ridgeline Winds (mph)
Sunday Evening SE 5-15
Sunday Night SSW 5-15
Monday Morning SW 5-15
Monday Afternoon SW 10-20
West South Ridgeline Winds (mph)
Sunday Evening SSE 5-15
Sunday Night WSW 5-15
Monday Morning WSW 5-15
Monday Afternoon WSW 10-20
Stevens Pass Ridgeline Winds (mph)
Sunday Evening ESE 5-15
Sunday Night SW 5-15
Monday Morning WSW 5-15
Monday Afternoon W 10-20
Snoqualmie Pass Ridgeline Winds (mph)
Sunday Evening ESE 5-15
Sunday Night SW 5-15
Monday Morning W 5-15
Monday Afternoon W 10-20
East North Ridgeline Winds (mph)
Sunday Evening SSE 0-10
Sunday Night SW 5-15
Monday Morning SW 5-15
Monday Afternoon SW 10-20
East Central Ridgeline Winds (mph)
Sunday Evening SSE 5-15
Sunday Night WSW 5-15
Monday Morning W 5-15
Monday Afternoon WSW 15-25
East South Ridgeline Winds (mph)
Sunday Evening S 5-15
Sunday Night WSW 5-15
Monday Morning W 5-15
Monday Afternoon W 15-25
Mt. Hood Ridgeline Winds (mph)
Sunday Evening SW 5-15
Sunday Night SW 5-15
Monday Morning WSW 10-20
Monday Afternoon WSW 15-25

Extended Weather Synopsis

The high pressure begins to rebound Tuesday night. With the ridge overhead and a cut-off low pressure further south, a Rex Block pattern is established over the PNW. Named weather features like this often spell persistent periods of drier weather. And that's exactly what's in store. Freezing levels and daytime high temperatures gradually rise as the upper air winds shift from NW to W. Expect plenty of sunshine and very spring-like weather across the region. 

Extended Snow Level (ft)

Tuesday Night* Wednesday Wednesday Night* Thursday *
West North 3000' 5000' 4000' 7000'
Snoqualmie Pass 3000' 5500' 4000' 7500'
Mt. Hood 3500' 6500' 7000' 9000'
West North Elevation
Tuesday Night* 3000'
Wednesday 5000'
Wednesday Night* 4000'
Thursday * 7000'
Snoqualmie Pass Elevation
Tuesday Night* 3000'
Wednesday 5500'
Wednesday Night* 4000'
Thursday * 7500'
Mt. Hood Elevation
Tuesday Night* 3500'
Wednesday 6500'
Wednesday Night* 7000'
Thursday * 9000'

Jump to: Weather Forecast I Precipitation I Snow Level I 5000' Temps I Ridgeline Winds I Extended Weather

Previous forecast from Apr 5, 2026

The NWAC program is administered by the USDA-Forest Service and operates from the National Weather Service Forecast Office in Seattle. NWAC services are made possible by important collaboration and support from a wide variety of federal, state and private cooperators.

The 5000’ temperature forecast does not imply a trend over the 12 hr period and only represents the max and min temperatures within a 12 hr period in the zone. The 6-hr snow level forecast, the forecast discussion, and weather forecast sections may add detail regarding temperature trends.

The snow level forecast represents the general snow level over a 6 hr time period. Freezing levels are forecast when precipitation is not expected.

*Easterly or offshore flow is highlighted with an asterisk when we expect relatively cool east winds in the major Cascade Passes. Easterly flow will often lead to temperature inversions and is a key variable for forecasting precipitation type in the Cascade Passes. Strong easterly flow events can affect terrain on a more regional scale.

Ridgeline winds are the average wind speed and direction over a 6 hr time period.

The wind forecast represents an elevation range instead of a single elevation slice. The elevation range overlaps with the near and above treeline elevation bands in the avalanche forecast and differs per zone.

Wind direction indicates the direction the wind originates or comes from on the 16-point compass rose.

Water Equivalent (WE) is the liquid water equivalent of all precipitation types; rain, snow, ice pellets, etc., forecast to the hundredth of an inch at specific locations. To use WE as a proxy for snowfall amounts, start with a snow to water ratio of 10:1 (10 inches of snow = 1 inch WE). Temperatures at or near freezing will generally have a lower ratio (heavy wet snow) and very cold temperatures can have a much higher ratio (dry fluffy snow).

The label LT, is shorthand for ‘less than’.

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