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 18 April.
Updated 19 April 2025 08:35 NZST.
| Next Snow Expected | 26 April |
|---|---|
| Next Snow Amount | 1cm |
| Next 48 Hours | - |
| Next 7 Days | - |
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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 12℃
Min -2℃
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -2℃ and rising to 12℃
Temperature at BaseTemp at Base
Fri
18
Snow unlikely
Clear sky.
Willamette Pass has no new snow forecast in the next 48 hours.
Willamette Pass Snow Report
Snow report from Diamond Peak (near Willamette Pass)
| Snow Conditions | - |
|---|
Willamette Pass 7-Day Snow Forecast Overview
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| Fri 18 | Sat 19 | Sun 20 | Mon 21 | Tue 22 | Wed 23 | Thu 24 | |
|---|---|---|---|---|---|---|---|
| Wind | E F3 | S F2 | NW F3 | ||||
| 2,037m | 7℃
| 8℃
 | 4℃
| 6℃
| 6℃
| 12℃
| 13℃
|
| SW F2 | NW F2 | ||||||
| 1,799m | 9℃
| 9℃
| 5℃
| 7℃
| 8℃
| 14℃
| 14℃
|
| NW F2 | NW F2 | ||||||
| 1,561m | 12℃
| 12℃
| 8℃
| 9℃
| 10℃
| 15℃
| 16℃
|
| Snow Line | |||||||
| Max Town | 12℃ | 12℃ | 8℃ | 9℃ | 10℃ | 15℃ | 16℃ |
| Min Town | -2℃ | 3℃ | 0℃ | -4℃ | -3℃ | -2℃ | 1℃ |
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 12℃
Min -2℃
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -2℃ and rising to 12℃
Temperature at BaseTemp at Base
Fri
18
Snow unlikely
Clear sky.
Max 12℃
Min 3℃
Valley temperatures from an overnight low of 3℃ to daytime highs around 12℃
Temperature at BaseTemp at Base
Sat
19
Snow unlikely
Clear sky, cloudy, clear sky later.
Max 8℃
Min 0℃
Valley temperatures from an overnight low of 0℃ to daytime highs around 8℃
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Sun
20
Snow unlikely
Cloudy first, clear sky then cloudy, clear sky later.
Max 9℃
Min -4℃
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -4℃ and rising to 9℃
Temperature at BaseTemp at Base
Mon
21
Snow unlikely
Clear sky first, cloudy then fair, clear sky later.
Max 10℃
Min -3℃
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -3℃ and rising to 10℃
Temperature at BaseTemp at Base
Tue
22
Snow unlikely
Clear sky, cloudy, clear sky later.
Max 15℃
Min -2℃
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -2℃ and rising to 15℃
Temperature at BaseTemp at Base
Wed
23
Snow unlikely
Clear sky.
Max 16℃
Min 1℃
Valley temperatures from an overnight low of 1℃ to daytime highs around 16℃
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Thu
24
Snow unlikely
Clear spells early, then cloudy 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 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 08:35 NZST, next update expected 14:00 NZST.
Snow Forecast near Willamette Pass
| Snow Report and Forecast | 48 Hr | Fri | Sat | Sun | Mon | Tue | Wed | Thu | 7 Day |
|---|---|---|---|---|---|---|---|---|---|
| Diamond Peak | - | 1cm |
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.