Willamette Pass Snow Forecast - 7 day
Updated 21 March 2026 04:49 AEDT
7-Day Snow Forecast for Willamette Pass
1-week from 20 March.
For Forecast detail, see below.
There is some snow in the long-range forecast (8 to 16 days from today)!
J2Ski - Sign In for a long-range snow forecast, with more weather detail.
Willamette Pass 7-Day Snow Forecast Highlights
When will there be fresh snow in Willamette Pass?
| Next Snow Expected | 25 March |
|---|---|
| Next Snow Amount | 2cm |
| Next 48 Hours | - |
| Next 7 Days | 2cm |
7-Day Snow Outlook for Willamette Pass
Snowfall
Snow Line
Max 15℃
Min -8℃
2cm New Snow
Snow Line from 1,829m to resort level (1,561m).
There is some snow in the long-range forecast (8 to 16 days from today)!
J2Ski - Sign In for a long-range snow forecast, with more weather detail.
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Willamette Pass Medium-Range (7-Day) Snow Forecast Detail
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.
Max 15℃
Min 6℃
Valley temperatures from an overnight low of 6℃ to daytime highs around 15℃
Temperature at BaseTemp at Base
Fri
20
Snow unlikely
Clear sky early, then cloudy later.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 8℃
Min -1℃
Valley temperatures from an overnight low of -1℃ to daytime highs around 8℃
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Sat
21
Snow unlikely
Cloudy, drizzle, cloudy later.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 14℃
Min -1℃
Valley temperatures from an overnight low of -1℃ to daytime highs around 14℃
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Sun
22
Snow unlikely
Clear sky, cloudy, clear sky later.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 14℃
Min 3℃
Valley temperatures from an overnight low of 3℃ to daytime highs around 14℃
Temperature at BaseTemp at Base
Mon
23
Snow unlikely
Cloudy.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 6℃
Min 2℃
Valley temperatures from an overnight low of 2℃ to daytime highs around 6℃
Temperature at BaseTemp at Base
Tue
24
Snow unlikely
Cloudy early, then drizzle later.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 1℃
Min -7℃
Valley temperatures from an overnight low of -7℃ to daytime highs around 1℃
Temperature at BaseTemp at Base
Snowfall
Snow Line
Wed
25
2cm New Snow
Drizzle, snow showers, light snow later.
Snow Line from 1,829m to resort level (1,561m).
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 9℃
Min -8℃
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -8℃ and rising to 9℃
Temperature at BaseTemp at Base
Thu
26
Snow unlikely
Light snow early, then cloudy later.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
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 04:49 AEDT, next update expected 10:00 AEDT.
Snow Forecast near Willamette Pass
| Ski Area | 48 Hr | 7 Day | Fr | Sa | Su | Mo | Tu | We | Th |
|---|---|---|---|---|---|---|---|---|---|
| Diamond Peak | - | 4cm |
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.