Willamette Pass Snow Report and Forecast
Snow Forecast for Willamette Pass
When will there be fresh snow?
This is the Snow Forecast for Willamette Pass, United States for 16 days from 28 March.
Updated 28 March 2025 05:32 PDT.
| Next Snow Expected | 28 March |
|---|---|
| Next Snow Amount | 2in |
| Next 48 Hours | 3in |
| Next 7 Days | 15in |
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For Forecast detail, see below.
For current snow depths and skiing conditions, see our Current Snow Report for Willamette Pass.
Forecast for today in Willamette Pass
Max 38°F
Min 29°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 29°F and rising to 38°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Fri
28
2in New Snow
Light snow early, then heavy snow showers later.
Snow Line from 5,377ft to resort level.
Powder Alert!
Updated 28 March 2025 11:37 PDT
Powder Possible :- 9in of Fresh Snow is forecast for Willamette Pass over the next 3 days.
To get Powder Alerts and Snow Storm Early Warnings by e-mail, Subscribe to our Snow Mail below .
Willamette Pass Snow Report
| Upper Snow Depths |
| - |
| Lower Snow Depths |
| - |
| Snow Conditions |
| - |
Willamette Pass 7-Day Snow Forecast Overview
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| Fri 28 | Sat 29 | Sun 30 | Mon 31 | Tue 01 | Wed 02 | Thu 03 | |
|---|---|---|---|---|---|---|---|
| Wind | SW F4 | W F3 | SW F3 | W F2 | |||
| 6,683ft | 31°F
+2in
| 27°F
 +1in
| 34°F
| 32°F
 +5in
| 25°F
+4in
| 25°F
+2in
| 30°F
 |
| SW F3 | NW F2 | SW F3 | W F2 | ||||
| 5,902ft | 34°F
+2in
| 29°F
+1in
| 37°F
| 35°F
+5in
| 28°F
+4in
| 28°F
+2in
| 33°F
|
| W F3 | SW F3 | W F2 | |||||
| 5,121ft | 38°F
+2in
| 32°F
+1in
| 41°F
| 39°F
+4in
| 31°F
 +3in
| 31°F
+1in
| 37°F
|
| Snow Line | varying 5,377ft | 5,121ft | varying 5,738ft | 5,121ft | 5,121ft | ||
| Max Town | 38°F | 32°F | 41°F | 39°F | 31°F | 31°F | 37°F |
| Min Town | 29°F | 22°F | 25°F | 27°F | 21°F | 18°F | 11°F |
This table shows the average forecast snowfall, the maximum temperature, and expected general weather at resort, lower and upper mountain levels. For daily forecast details, see below.
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 38°F
Min 29°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 29°F and rising to 38°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Fri
28
2in New Snow
Light snow early, then heavy snow showers later.
Snow Line from 5,377ft to resort level.
Max 32°F
Min 22°F
Valley temperatures from an overnight low of 22°F to daytime highs around 32°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Sat
29
1in New Snow
Cloudy.
Snow falling to resort level.
Max 41°F
Min 25°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 25°F and rising to 41°F
Temperature at BaseTemp at Base
Sun
30
Snow unlikely
Cloudy early, then clear spells later.
Max 39°F
Min 27°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 27°F and rising to 39°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Mon
31
4in to 5in New Snow
Light snow first, fog then heavy snow, snow showers later.
Snow Line from 5,738ft to resort level.
Max 31°F
Min 21°F
Below freezing at all levels, with valley temperatures as low as 21°F and not getting above 31°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Tue
01
3in to 4in New Snow
Light snow showers first, light snow then snow showers, light snow showers later.
Snow falling to resort level.
Max 31°F
Min 18°F
Below freezing at all levels, with valley temperatures as low as 18°F and not getting above 31°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Wed
02
1in to 2in New Snow
Light snow showers first, light snow then cloudy, snow showers later.
Snow falling to resort level.
Max 37°F
Min 11°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 11°F and rising to 37°F
Temperature at BaseTemp at Base
Thu
03
Snow unlikely
Cloudy, clear sky, fair later.
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 05:32 PDT, next update expected imminently.
Snow Forecast near Willamette Pass
| Snow Report and Forecast | 48 Hr | Fri | Sat | Sun | Mon | Tue | Wed | Thu | 7 Day |
|---|---|---|---|---|---|---|---|---|---|
| Diamond Peak | 2in | 9in |
Understanding and predicting Snow Conditions in Willamette Pass
Here are our tips for making the most of a trip to Willamette Pass, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Willamette Pass, but like any mountain, snow conditions change throughout the season, from day to day, and even from hour to hour.
Whether you’re sticking to the marked pistes or venturing off-piste, here’s what you need to know:
Pistes (Groomers) or Off-Piste
These can be a world apart, regarding snow conditions, even ignoring the difference between the natural terrain features to be found off-piste and the generally controlled surfaces and slopes of a pisted (groomed) run.
- Piste Conditions can range from fresh powder to firm, icy surfaces, particularly after warm spells or a busy day on the mountain with the passage of many skiers.
- Off-Piste Conditions are far more variable. Wind and sun can quickly transform fresh snow into wind crust or slushy layers, whilst cold weather can preserve stashes of powder many days after a snowfall.
WARNING - skiing off-piste (out-of-bounds) at Willamette Pass is not always controlled (slopes made safe from avalanche risk) or patrolled. Always check local advice, ski with safety kit (and know how to use it), and never ski alone.
Analyzing Weather and Snowfall Forecasts
Whilst no forecast can tell you exactly how snow conditions in Willamette Pass will develop, checking the forecast regularly should give you an idea of what to expect.
New snowfall can bring fresh powder and refresh the surfaces of pisted runs. Powder can be tracked out quickly at busy times, but in less crowded and shaded areas, fresh snow can linger for days.
Changes in weather conditions, such as milder temperatures, rain or wind, can degrade snow quality. Conversely, cold, stable weather can preserve conditions for extended periods.
Predicting Future Snow Quality
Regularly check our snow and weather forecasts for Willamette Pass for changes that may affect snow quality. Forecast snowfall depth and recent snowfall are good indicators of what to expect.
Use historical data and recent snow reports to understand past snow conditions and anticipate future changes.