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 26 April.
Updated 26 April 2025 07:35 PDT.
| Next Snow Expected | 3 May |
|---|---|
| Next Snow Amount | 1in |
| Next 48 Hours | - |
| Next 7 Days | 1in |
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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 45°F
Min 37°F
Valley temperatures from an overnight low of 37°F to daytime highs around 45°F
Temperature at BaseTemp at Base
Sat
26
Snow unlikely
Cloudy, fog, cloudy later.
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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| Sat 26 | Sun 27 | Mon 28 | Tue 29 | Wed 30 | Thu 01 | Fri 02 | |
|---|---|---|---|---|---|---|---|
| Wind | SE F3 | SW F3 | SW F3 | ||||
| 6,683ft | 40°F
| 37°F
 | 47°F
| 44°F
| 56°F
| 60°F
| 55°F
|
| NW F2 | NW F3 | NW F2 | |||||
| 5,902ft | 43°F
| 41°F
| 49°F
| 46°F
| 59°F
| 63°F
| 58°F
|
| NW F2 | NW F2 | ||||||
| 5,121ft | 45°F
| 45°F
| 53°F
| 50°F
| 63°F
| 67°F
| 63°F
 |
| Snow Line | |||||||
| Max Town | 45°F | 45°F | 53°F | 50°F | 63°F | 67°F | 63°F |
| Min Town | 37°F | 31°F | 31°F | 34°F | 32°F | 41°F | 40°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 45°F
Min 37°F
Valley temperatures from an overnight low of 37°F to daytime highs around 45°F
Temperature at BaseTemp at Base
Sat
26
Snow unlikely
Cloudy, fog, cloudy later.
Max 45°F
Min 31°F
Valley temperatures from an overnight low of 31°F to daytime highs around 45°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Sun
27
Snow unlikely
Cloudy, clear sky, fair later.
Max 53°F
Min 31°F
Valley temperatures from an overnight low of 31°F to daytime highs around 53°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Mon
28
Snow unlikely
Fair, clear sky, cloudy later.
Max 50°F
Min 34°F
Valley temperatures from an overnight low of 34°F to daytime highs around 50°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Tue
29
Snow unlikely
Cloudy.
Max 63°F
Min 32°F
Valley temperatures from an overnight low of 32°F to daytime highs around 63°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Wed
30
Snow unlikely
Cloudy early, then clear sky later.
Max 67°F
Min 41°F
Valley temperatures from an overnight low of 41°F to daytime highs around 67°F
Temperature at BaseTemp at Base
Thu
01
Snow unlikely
Clear sky early, then fair later.
Max 63°F
Min 40°F
Valley temperatures from an overnight low of 40°F to daytime highs around 63°F
Temperature at BaseTemp at Base
Fri
02
Snow unlikely
Light drizzle, cloudy, light drizzle 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 07:35 PDT, next update expected imminently.
Snow Forecast near Willamette Pass
| Snow Report and Forecast | 48 Hr | Sat | Sun | Mon | Tue | Wed | Thu | Fri | 7 Day |
|---|---|---|---|---|---|---|---|---|---|
| Diamond Peak | - | 1in |
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.