Willamette Pass Snow Forecast - 7 day
Updated 24 May 2026 18:45 BST
7-Day Snow Forecast for Willamette Pass
1-week from 24 May.
For Forecast detail, see below.
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 | 27 May |
|---|---|
| Next Snow Amount | 2cm 1in |
| Next 48 Hours | 1cm 1in |
| Next 7 Days | 3cm 1in |
7-Day Snow Outlook for Willamette Pass
Snowfall
Snow Line
Max 19℃ 65°F
Min 0℃ 31°F
3cm 1in New Snow
Snow Line from 1,649m 5,410ft to resort level ( 1,561m 5,121ft ).
J2Ski - Sign In for a long-range snow forecast, with more weather detail.
Partner Offers
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 19℃ 65°F
Min 6℃ 42°F
Valley temperatures from an overnight low of 6℃ 42°F to daytime highs around 19℃ 65°F
Temperature at BaseTemp at Base
Sun
24
Snow unlikely
Clear sky.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 15℃ 59°F
Min 1℃ 34°F
Valley temperatures from an overnight low of 1℃ 34°F to daytime highs around 15℃ 59°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Mon
25
up to 1cm New Snow
Clear sky early, then cloudy later.
Snow falling to resort level ( 1,561m 5,121ft ).
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 7℃ 44°F
Min 0℃ 31°F
Valley temperatures from an overnight low of 0℃ 31°F to daytime highs around 7℃ 44°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Tue
26
1cm New Snow
Cloudy early, then clear spells later.
Snow falling to resort level ( 1,561m 5,121ft ).
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 6℃ 42°F
Min 2℃ 36°F
Valley temperatures from an overnight low of 2℃ 36°F to daytime highs around 6℃ 42°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Wed
27
up to 2cm up to 1in New Snow
Clear spells, cloudy, snow showers at altitude later.
Snow Line from 1,649m 5,410ft to resort level ( 1,561m 5,121ft ).
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 12℃ 54°F
Min 5℃ 41°F
Valley temperatures from an overnight low of 5℃ 41°F to daytime highs around 12℃ 54°F
Temperature at BaseTemp at Base
Thu
28
Snow unlikely
Cloudy early, then light drizzle later.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 8℃ 47°F
Min 5℃ 40°F
Valley temperatures from an overnight low of 5℃ 40°F to daytime highs around 8℃ 47°F
Temperature at BaseTemp at Base
Fri
29
Snow unlikely
Light drizzle first, light rain showers then fog, cloudy later.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 8℃ 45°F
Min 2℃ 35°F
Valley temperatures from an overnight low of 2℃ 35°F to daytime highs around 8℃ 45°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Sat
30
Snow unlikely
Cloudy, fair, 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 piste 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 18:45 BST, next update expected 00:00 BST.
Snow Forecast near Willamette Pass
| Ski Area | 48 Hr | 7 Day | Su | Mo | Tu | We | Th | Fr | Sa |
|---|---|---|---|---|---|---|---|---|---|
| Diamond Peak | 1cm - | 2cm 1in |
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.