Willamette Pass Snow Forecast - 7 day
Updated 20 September 2026 09:48 UTC
7-Day Snow Forecast for Willamette Pass
1-week from 20 September.
For Forecast detail, see below.
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Willamette Pass 7-Day Snow Forecast Highlights
When will there be fresh snow in Willamette Pass?
| Next Snow? | |
|---|---|
| There is no snow currently in the forecast for Willamette Pass. |
7-Day Snow Outlook for Willamette Pass
Snowfall
Snow Line
Max 24℃ 74°F
Min -2℃ 29°F
Snow unlikely
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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 24℃ 74°F
Min 8℃ 47°F
Valley temperatures from an overnight low of 8℃ 47°F to daytime highs around 24℃ 74°F
Temperature at BaseTemp at Base
Sun
20
Snow unlikely
Clear sky.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 21℃ 70°F
Min 9℃ 49°F
Valley temperatures from an overnight low of 9℃ 49°F to daytime highs around 21℃ 70°F
Temperature at BaseTemp at Base
Mon
21
Snow unlikely
Clear sky early, then cloudy later.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 18℃ 65°F
Min 6℃ 43°F
Valley temperatures from an overnight low of 6℃ 43°F to daytime highs around 18℃ 65°F
Temperature at BaseTemp at Base
Tue
22
Snow unlikely
Clear sky early, then cloudy later.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 19℃ 65°F
Min 4℃ 40°F
Valley temperatures from an overnight low of 4℃ 40°F to daytime highs around 19℃ 65°F
Temperature at BaseTemp at Base
Wed
23
Snow unlikely
Clear sky early, then cloudy later.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 20℃ 68°F
Min 7℃ 44°F
Valley temperatures from an overnight low of 7℃ 44°F to daytime highs around 20℃ 68°F
Temperature at BaseTemp at Base
Thu
24
Snow unlikely
Cloudy early, then clear sky later.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 7℃ 44°F
Min 1℃ 33°F
Valley temperatures from an overnight low of 1℃ 33°F to daytime highs around 7℃ 44°F
Freeze-thaw conditions up high.
Temperature at BaseTemp at Base
Fri
25
Snow unlikely
Rain showers early, then light drizzle later.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Max 14℃ 57°F
Min -2℃ 29°F
Freeze-thaw conditions, with valley temperatures cooling to -2℃ 29°F and rising to 14℃ 57°F
Temperature at BaseTemp at Base
Sat
26
Snow unlikely
Clear spells 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 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 09:48 UTC, next update expected imminently.
Snow Forecast near Willamette Pass
| Ski Area | 48 Hr | 7 Day | Su | Mo | Tu | We | Th | Fr | Sa |
|---|---|---|---|---|---|---|---|---|---|
| Diamond Peak | - | 1cm - |
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.