Willamette Pass 48-Hour Snow Forecast
Updated 21 March 2026 10:50 AEDT
2-Day Forecast for Willamette Pass
48-hours from 21 March.
See below for forecast detail
Willamette Pass Snow Forecast updated at 10:50 AEDT, next update expected 16:00 AEDT.
Forecast for today in Willamette Pass
Max 8℃
Min -1℃
Valley temperatures from an overnight low of -1℃ to daytime highs around 8℃
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Sat
21
Snow unlikely
Cloudy, light drizzle, cloudy later.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Forecast for tomorrow in Willamette Pass
Max 14℃
Min -1℃
Valley temperatures from an overnight low of -1℃ to daytime highs around 14℃
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Sun
22
Snow unlikely
Clear sky early, then cloudy later.
Forecast times for Willamette Pass are in Denver (US/Mountain) time zone.
Partner Offers
48-hour Forecast Detail
| Base | Snow to | Weather | Temp Town | Rain or Snow? | |||
|---|---|---|---|---|---|---|---|
| Sat | 00:00 | | Cloudy. | 8℃ | NW Light | 0% | |
| Sat | 01:00 | | Cloudy. | 8℃ | NW Light | 5% | |
| Sat | 02:00 | | Fog at altitude. Cloud below. | 8℃ | NW Light | 5% | |
| Sat | 03:00 | | Fog at altitude. Cloud below. | 7℃ | NW Breeze | 10% | |
| Sat | 04:00 | | Fog at altitude. Cloud below. | 7℃ | NW Breeze | 20% | |
| Sat | 05:00 | | Fog at altitude. Cloud below. | 7℃ | NW Breeze | 25% | |
| Sat | 06:00 | | Light drizzle. | 5℃ | NW Breeze | 40% | |
| Sat | 07:00 | | Light snow at altitude. Lt drizzle below. | 4℃ | NW Breeze | 30% | |
| Sat | 08:00 | | Light drizzle. | 3℃ | NW Breeze | 15% | |
| Sat | 09:00 | | Light drizzle. | 3℃ | NW Light | 10% | |
| Sat | 10:00 | | Light snow at altitude. Lt drizzle below. | 2℃ | NW Light | 5% | |
| Sat | 11:00 |  | Fog. | 2℃ | NW Light | 0% | |
| Sat | 12:00 | | Cloudy. | 3℃ | NW Light | 0% | |
| Sat | 13:00 | | Cloudy. | 4℃ | NW Breeze | 0% | |
| Sat | 14:00 | | Cloudy. | 5℃ | NW Breeze | 0% | |
| Sat | 15:00 | | Cloudy. | 5℃ | NW Breeze | 0% | |
| Sat | 16:00 |  | Clear spells at altitude. Fair below. | 4℃ | NW Breeze | 0% | |
| Sat | 17:00 | | Clear sky. | 4℃ | NW Breeze | 0% | |
| Sat | 18:00 | | Clear sky. | 4℃ | NW Breeze | 0% | |
| Sat | 19:00 | | Clear sky. | 3℃ | NW Light | 0% | |
| Sat | 20:00 | | Clear sky. | 2℃ | NW Light | 0% | |
| Sat | 21:00 | | Clear sky. | 0℃ | NW Light | 0% | |
| Sat | 22:00 | | Clear sky. | 0℃ | NW Light | 0% | |
| Sat | 23:00 | | Clear sky. | -1℃ | NW Light | 0% | |
| Sun | 00:00 | | Clear sky. | -1℃ | SE Light | 0% | |
| Sun | 01:00 | | Clear sky. | -1℃ | SE Light | 0% | |
| Sun | 02:00 | | Clear sky. | -1℃ | SE Light | 0% | |
| Sun | 03:00 | | Clear sky. | 0℃ | SE Light | 0% | |
| Sun | 04:00 | | Clear sky. | 0℃ | SE Light | 0% | |
| Sun | 05:00 | | Clear sky. | 0℃ | SE Light | 0% | |
| Sun | 06:00 | | Clear sky. | 0℃ | SE Light | 0% | |
| Sun | 07:00 | | Clear sky. | 0℃ | SE Light | 0% | |
| Sun | 08:00 | | Clear sky. | 0℃ | SE Light | 0% | |
| Sun | 09:00 | | Clear sky. | 0℃ | SE Light | 0% | |
| Sun | 10:00 | | Cloudy. | 2℃ | SE Light | 0% | |
| Sun | 11:00 | | Cloudy. | 5℃ | SE Light | 0% | |
| Sun | 12:00 | | Cloudy. | 8℃ | SE Light | 0% | |
| Sun | 13:00 | | Cloudy. | 11℃ | SE Light | 0% | |
| Sun | 14:00 | | Cloudy. | 13℃ | SE Light | 0% | |
| Sun | 15:00 | | Cloudy. | 14℃ | SE Light | 0% | |
| Sun | 16:00 | | Cloudy. | 14℃ | SE Light | 0% | |
| Sun | 17:00 | | Cloudy. | 13℃ | SE Light | 0% | |
| Sun | 18:00 | | Cloudy. | 12℃ | SE Light | 0% | |
| Sun | 19:00 | | Cloudy. | 10℃ | SE Light | 0% | |
| Sun | 20:00 | | Cloudy. | 7℃ | SE Light | 0% | |
| Sun | 21:00 | | Cloudy. | 5℃ | SE Light | 0% | |
| Sun | 22:00 | | Cloudy. | 5℃ | SE Light | 0% | |
| Sun | 23:00 | | Cloudy. | 4℃ | SE Light | 0% | |
Snow Forecast near Willamette Pass
Snow forecasts for nearby ski areas.
| Ski Area | 48 Hr | 7 Day | Sa | Su | Mo | Tu | We | Th | Fr |
|---|---|---|---|---|---|---|---|---|---|
| Diamond Peak | - | 3cm |
Willamette Pass Snow
For current snow depths and skiing conditions, see our Current Snow Report for Willamette Pass.
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.
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.