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Willamette Pass Long-Range Snow Forecast - 21st September 2026

Willamette Pass Long-Range Snow Forecast Updated today

ECMWF IFS
GEM
GFS

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Updated 20 September 2026 22:43 PDT

Long-Range Snow Forecast for Willamette Pass

Long-range (14 to 45 days) from 21 September.

For Forecast detail, see below.

Willamette Pass Snow Forecast Highlights

When will there be fresh snow in Willamette Pass?

Willamette Pass Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (5,902ft)
Next Snow?
There is no snow currently in the forecast for Willamette Pass.

Long-range Snow Outlook for Willamette Pass

 
Snowfall

 
Snow Line

Max 70°F
Min 37°F

Snow unlikely

Willamette Pass Long-Range (2 weeks+) Snow Forecast Outlook

Note :- Mountain weather is extremely dynamic; the forecast below will change. Any forecast snow may move forward or back in the forecast, and predicted snowfall depths will be revised in subsequent updates.

16 Day Weather and Snow Forecast for Willamette Pass from OpenMeteo(GFS)
BaseSnow and WeatherTemp
Town
Mon
21
Cloud

Cloudy.

Max 70°F
Min 49°F
Tue
22
Cloud

Cloudy.

Max 59°F
Min 41°F
Wed
23
Cloud

Cloudy.

Max 69°F
Min 40°F
Thu
24
Cloud

Cloudy.

Max 68°F
Min 44°F
Fri
25
Cloud

Cloudy.

Max 54°F
Min 39°F
Sat
26
Clear

Clear sky.

Max 69°F
Min 37°F
Sun
27
Cloud

Cloudy.

Max 59°F
Min 41°F

No significant snowfall is forecast for this period.

This Snow Forecast for Willamette Pass, United States gives the predicted Snowfall and Freezing Levels for the next week.

The forecast snowfall depths given are the likely average accumulations for the Lower and Upper slopes. The actual snow depth in Willamette Pass, on any given trail or itinerary, may be dramatically different, particularly if the snowfall is accompanied by high winds and/or varying air temperatures.

Snow Forecasts beyond two days ahead are subject to significant change and variable reliability.

Willamette Pass Snow Forecast updated at 22:43 PDT, next update expected 04:00 PDT.

Ensemble forecast for Willamette Pass, USA at 5,121ft

Daily Mean Temperature (yellow line is control)
Daily Total Precipitation (blue line is control)

Snow Reliability

Willamette Pass typically enjoys reliable snowfall, with an average snow depth of 5 to 10 feet throughout the season. For the most current snow conditions, including snowfall updates, check J2Ski for the latest information.

Off-Piste Safety in Willamette Pass

Before skiing or snowboarding off-piste in Willamette Pass, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.