Willamette Pass 48-Hour Snow Forecast
Updated 01 September 2026 17:49 NZST
2-Day Forecast for Willamette Pass
48-hours from 1 September.
See below for forecast detail
Willamette Pass Snow Forecast updated at 17:49 NZST, next update expected 23:00 NZST.
Forecast for today in Willamette Pass
Max 18℃
Min 7℃
Valley temperatures from an overnight low of 7℃ to daytime highs around 18℃
Temperature at BaseTemp at Base
Tue
01
Snow unlikely
Clear sky early, then cloudy later.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Forecast for tomorrow in Willamette Pass
Max 10℃
Min 6℃
Valley temperatures from an overnight low of 6℃ to daytime highs around 10℃
Temperature at BaseTemp at Base
Wed
02
Snow unlikely
Cloudy, fog, cloudy later.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
48-hour Forecast Detail
| Base | Snow to | Weather | Temp Town | Rain or Snow? | |||
|---|---|---|---|---|---|---|---|
| Tue | 00:00 | | Cloudy. | 11℃ | NW Light | 0% | |
| Tue | 01:00 | | Cloudy. | 10℃ | NW Light | 0% | |
| Tue | 02:00 | | Cloudy. | 9℃ | NW Light | 0% | |
| Tue | 03:00 | | Cloudy. | 9℃ | NW Light | 0% | |
| Tue | 04:00 | | Cloudy. | 8℃ | NW Light | 0% | |
| Tue | 05:00 | | Cloudy. | 8℃ | NW Light | 0% | |
| Tue | 06:00 | | Cloudy. | 7℃ | NW Light | 0% | |
| Tue | 07:00 | | Cloudy. | 8℃ | NW Light | 0% | |
| Tue | 08:00 |  | Cloudy at altitude. Mixed below. | 8℃ | NW Light | 0% | |
| Tue | 09:00 |  | Clear sky. | 10℃ | NW Light | 0% | |
| Tue | 10:00 | | Clear sky. | 12℃ | NW Light | 0% | |
| Tue | 11:00 | | Clear sky. | 14℃ | NW Light | 0% | |
| Tue | 12:00 | | Fair at altitude. Mixed below. | 15℃ | NW Light | 0% | |
| Tue | 13:00 | | Cloudy. | 16℃ | NW Breeze | 5% | |
| Tue | 14:00 | | Cloudy. | 17℃ | NW Breeze | 0% | |
| Tue | 15:00 | | Clear spells at altitude. Cloud below. | 18℃ | NW Breeze | 5% | |
| Tue | 16:00 | | Cloudy. | 17℃ | NW Breeze | 10% | |
| Tue | 17:00 | | Cloudy. | 16℃ | NW Breeze | 5% | |
| Tue | 18:00 | | Cloudy. | 15℃ | NW Breeze | 10% | |
| Tue | 19:00 | | Cloudy at altitude. Mixed below. | 14℃ | NW Breeze | 5% | |
| Tue | 20:00 | | Cloudy. | 12℃ | NW Breeze | 5% | |
| Tue | 21:00 | | Fair. | 10℃ | NW Breeze | 5% | |
| Tue | 22:00 | | Cloudy. | 9℃ | NW Breeze | 10% | |
| Tue | 23:00 | | Fog. | 8℃ | NW Breeze | 15% | |
| Wed | 00:00 | | Fog. | 8℃ | SW Breeze | 15% | |
| Wed | 01:00 | | Fog. | 8℃ | SW Light | 15% | |
| Wed | 02:00 |  | Drizzle. | 8℃ | SW Light | 15% | |
| Wed | 03:00 | | Fog at altitude. Cloud below. | 8℃ | SW Breeze | 10% | |
| Wed | 04:00 | | Clear spells. | 7℃ | SW Light | 10% | |
| Wed | 05:00 | | Cloudy. | 7℃ | SW Light | 5% | |
| Wed | 06:00 | | Clear spells at altitude. Cloud below. | 7℃ | SW Light | 10% | |
| Wed | 07:00 | | Cloudy. | 7℃ | SW Light | 5% | |
| Wed | 08:00 | | Cloudy. | 7℃ | SW Light | 5% | |
| Wed | 09:00 | | Cloudy. | 8℃ | SW Breeze | 5% | |
| Wed | 10:00 | | Cloudy. | 10℃ | SW Breeze | 10% | |
| Wed | 11:00 | | Cloudy. | 10℃ | SW Breeze | 25% | |
| Wed | 12:00 | | Cloudy at altitude. Lt drizzle below. | 9℃ | SW Breeze | 25% | |
| Wed | 13:00 | | Cloudy. | 9℃ | SW Breeze | 95% | |
| Wed | 14:00 |  | Heavy snow showers at altitude. Lt rain below. | 9℃ | SW Breeze | 95% | |
| Wed | 15:00 | | Cloudy. | 10℃ | SW Breeze | 95% | |
| Wed | 16:00 | | Rain. | 9℃ | SW Breeze | 95% | |
| Wed | 17:00 | | Rain. | 8℃ | SW Light | 95% | |
| Wed | 18:00 | | Rain. | 7℃ | SW Light | 95% | |
| Wed | 19:00 |  | Light rain showers. | 7℃ | SW Light | 100% | |
| Wed | 20:00 | | Light rain. | 6℃ | SW Light | 100% | |
| Wed | 21:00 | | Light drizzle. | 7℃ | SW Light | 100% | |
| Wed | 22:00 | | Drizzle. | 7℃ | SW Light | 100% | |
| Wed | 23:00 | | Light rain showers. | 6℃ | SW Light | 100% | |
Snow Forecast near Willamette Pass
Snow forecasts for nearby ski areas.
| Ski Area | 48 Hr | 7 Day | Tu | We | Th | Fr | Sa | Su | Mo |
|---|---|---|---|---|---|---|---|---|---|
| Diamond Peak | 10cm | 12cm |
Willamette Pass Snow
For current snow depths and skiing conditions, see our Current Snow Report for Willamette Pass.
No significant snowfall is forecast for this period.
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.
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.