Willamette Pass 48-Hour Snow Forecast
Updated 20 March 2026 10:49 PDT
2-Day Forecast for Willamette Pass
48-hours from 20 March.
See below for forecast detail
Willamette Pass Snow Forecast updated at 10:49 PDT, next update expected imminently.
Forecast for today in Willamette Pass
Max 59°F
Min 43°F
Valley temperatures from an overnight low of 43°F to daytime highs around 59°F
Temperature at BaseTemp at Base
Fri
20
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 46°F
Min 31°F
Valley temperatures from an overnight low of 31°F to daytime highs around 46°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Sat
21
Snow unlikely
Cloudy, drizzle, 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? | |||
|---|---|---|---|---|---|---|---|
| Fri | 00:00 | | Clear sky. | 46°F | SW Calm | 0% | |
| Fri | 01:00 | | Clear sky. | 46°F | SW Light | 0% | |
| Fri | 02:00 | | Clear sky. | 44°F | SW Calm | 0% | |
| Fri | 03:00 | | Clear sky. | 44°F | SW Light | 0% | |
| Fri | 04:00 | | Clear sky. | 43°F | SW Light | 0% | |
| Fri | 05:00 | | Clear sky. | 44°F | SW Light | 0% | |
| Fri | 06:00 | | Clear sky. | 44°F | SW Light | 0% | |
| Fri | 07:00 | | Clear sky. | 44°F | SW Light | 0% | |
| Fri | 08:00 | | Clear sky. | 45°F | SW Light | 0% | |
| Fri | 09:00 |  | Clear spells. | 45°F | SW Light | 0% | |
| Fri | 10:00 | | Fair. | 48°F | SW Light | 0% | |
| Fri | 11:00 | | Clear spells. | 54°F | SW Light | 0% | |
| Fri | 12:00 | | Cloudy. | 57°F | SW Breeze | 0% | |
| Fri | 13:00 | | Cloudy. | 58°F | SW Breeze | 0% | |
| Fri | 14:00 | | Cloudy. | 58°F | SW Breeze | 0% | |
| Fri | 15:00 | | Cloudy. | 59°F | SW Breeze | 0% | |
| Fri | 16:00 | | Cloudy. | 59°F | SW Breeze | 0% | |
| Fri | 17:00 | | Cloudy. | 58°F | SW Breeze | 0% | |
| Fri | 18:00 | | Cloudy. | 57°F | SW Breeze | 0% | |
| Fri | 19:00 | | Cloudy. | 54°F | SW Light | 0% | |
| Fri | 20:00 | | Cloudy. | 51°F | SW Light | 0% | |
| Fri | 21:00 | | Cloudy. | 49°F | SW Light | 0% | |
| Fri | 22:00 | | Cloudy. | 48°F | SW Light | 0% | |
| Fri | 23:00 | | Cloudy. | 46°F | SW Light | 5% | |
| Sat | 00:00 | | Cloudy. | 46°F | NW Light | 5% | |
| Sat | 01:00 |  | Fog. | 45°F | NW Light | 5% | |
| Sat | 02:00 | | Fog at altitude. Cloud below. | 45°F | NW Breeze | 10% | |
| Sat | 03:00 | | Fog at altitude. Cloud below. | 45°F | NW Breeze | 20% | |
| Sat | 04:00 | | Light drizzle. | 43°F | NW Breeze | 30% | |
| Sat | 05:00 | | Light snow at altitude. Drizzle below. | 41°F | NW Breeze | 35% | |
| Sat | 06:00 | | Light snow at altitude. Drizzle below. | 40°F | NW Breeze | 40% | |
| Sat | 07:00 |  | Light snow at altitude. Hvy drizzle below. | 39°F | NW Breeze | 25% | |
| Sat | 08:00 | | Light snow at altitude. Drizzle below. | 37°F | NW Light | 20% | |
| Sat | 09:00 | | Fog. | 36°F | NW Light | 10% | |
| Sat | 10:00 | | Fog at altitude. Lt drizzle below. | 35°F | NW Light | 5% | |
| Sat | 11:00 | | Fog. | 35°F | NW Light | 0% | |
| Sat | 12:00 | | Cloudy. | 36°F | NW Light | 0% | |
| Sat | 13:00 | | Cloudy. | 39°F | NW Breeze | 0% | |
| Sat | 14:00 | | Fair. | 40°F | NW Breeze | 0% | |
| Sat | 15:00 | | Cloudy. | 40°F | NW Breeze | 0% | |
| Sat | 16:00 | | Clear sky at altitude. Fair below. | 40°F | NW Breeze | 0% | |
| Sat | 17:00 | | Clear sky. | 40°F | NW Breeze | 0% | |
| Sat | 18:00 | | Clear sky. | 40°F | NW Breeze | 0% | |
| Sat | 19:00 | | Clear sky. | 38°F | NW Breeze | 0% | |
| Sat | 20:00 | | Clear sky. | 35°F | NW Light | 0% | |
| Sat | 21:00 | | Clear sky. | 32°F | NW Light | 0% | |
| Sat | 22:00 | | Clear sky. | 31°F | NW Light | 0% | |
| Sat | 23:00 | | Clear sky. | 31°F | NW Light | 0% | |
Snow Forecast near Willamette Pass
Snow forecasts for nearby ski areas.
| Ski Area | 48 Hr | 7 Day | Fr | Sa | Su | Mo | Tu | We | Th |
|---|---|---|---|---|---|---|---|---|---|
| Diamond Peak | - | 2in |
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.