Grimentz 7-Day Snow Forecast

Grimentz Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 20 September 2026 02:43 PDT

Long-Range Snow Forecast for Grimentz

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

For Forecast detail, see below.

Grimentz Snow Forecast Highlights

When will there be fresh snow in Grimentz?

Grimentz Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (7,290ft)
Next Snow?
There is no snow currently in the forecast for Grimentz.
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Long-range Snow Outlook for Grimentz

Snowfall

Snow Line

Max 72°F
Min 44°F

Snow unlikely

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Grimentz 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 Grimentz from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Sun 20	Clear spells.	Max 71°F Min 47°F
Mon 21	Cloudy at altitude, clear spells below.	Max 70°F Min 47°F
Tue 22	Clear sky.	Max 70°F Min 46°F
Wed 23	Clear sky.	Max 69°F Min 45°F
Thu 24	Cloudy.	Max 66°F Min 47°F
Fri 25	Clear spells at altitude, fair below.	Max 72°F Min 44°F
Sat 26	Clear sky.	Max 72°F Min 47°F

No significant snowfall is forecast for this period.

This Snow Forecast for Grimentz, Switzerland 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 Grimentz, 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.

Grimentz Snow Forecast updated at 02:43 PDT, next update expected imminently.

Ensemble forecast for Grimentz, Switzerland at 5,151ft

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 Reliability

Grimentz typically enjoys excellent snow reliability, with average snow depths reaching up to 2 meters during peak season. For the latest snow conditions and updates, check J2Ski for accurate and timely information.

Off-Piste Safety in Grimentz

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