Diamond Peak 7-Day Snow Forecast

Diamond Peak Long-Range Snow Forecast Updated today

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Updated 21 March 2026 04:40 AEDT

Long-Range Snow Forecast for Diamond Peak

Long-range (14 to 45 days) from 20 March.

For Forecast detail, see below.

Diamond Peak Snow Forecast Highlights

When will there be fresh snow in Diamond Peak?

Diamond Peak Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (2,325m)
Next Snow Expected	24 March
Next Snow Amount	2cm
Next 48 Hours	-
Next 7 Days	2cm

Long-range Snow Outlook for Diamond Peak

Snowfall

Snow Line

Max 13℃
Min -8℃

4cm New Snow

Snow Line from 2,369m to resort level (2,050m).

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Diamond Peak Long-Range (2 weeks+) Snow Forecast Outlook

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.

16 Day Weather and Snow Forecast for Diamond Peak from OpenMeteo(GFS)
	Snow and Weather	Temp Town
Fri 20	Cloudy.	Max 13℃ Min 5℃
Sat 21	Fog.	Max 4℃ Min -3℃
Sun 22	Cloudy.	Max 11℃ Min -4℃
Mon 23	Cloudy.	Max 12℃ Min -1℃
Tue 24	up to 4cm New Snow Light snow at altitude, drizzle below. Snow Line from 2,369m to 2,069m, with rain below.	Max 3℃ Min 1℃
Wed 25	Cloudy.	Max 0℃ Min -8℃
Thu 26	Cloudy.	Max 7℃ Min -8℃

This Snow Forecast for Diamond Peak, 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 Diamond Peak, 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.

Diamond Peak Snow Forecast updated at 04:40 AEDT, next update expected 10:00 AEDT.

Ensemble forecast for Diamond Peak, USA at 2,050m

Daily Mean Temperature (yellow line is control)

Daily Total Precipitation (blue line is control)

What are Forecast Ensembles ? Multiple forecasts from running the same weather model with slightly different inputs. The prominent line (the 'control') is the model output from standard inputs, the thinner lines are the variations. Plotted together, they show a range of possible outcomes; the closer they are, the higher the confidence.

How to read Long Range Ensemble Forecasts

These forecasts are from ECMWF EC46, a long-range, low-resolution (area) model. They may not accurately reflect local conditions and should be read as area forecasts, indicating whether the coming weeks are likely to be warmer, colder, wetter, or drier than average.

What to look for?

Temperatures trending downward at the same time as precipitation spikes upward... means snow!

Lines close together indicate a high confidence, while wider spreads signal uncertainty.

Snow Forecast near Diamond Peak

Snow Forecasts for Ski Resorts near Diamond Peak
Ski Area	48 Hr	7 Day	Fr	Sa	Su	Mo	Tu	We	Th
Willamette Pass	-	2cm

Snow Reliability

Diamond Peak enjoys reliable snowfall, with an average snow depth of around 300 inches each season. For the latest snow conditions, please refer to J2Ski for up-to-date information.

Off-Piste Safety in Diamond Peak

Before skiing or snowboarding off-piste in Diamond Peak, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.