Trillevallen 7-Day Snow Forecast

Trillevallen Long-Range Snow Forecast Updated today

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Updated 21 September 2026 22:48 AEST

Long-Range Snow Forecast for Trillevallen

Long-range (14 to 45 days) from 21 September.

For Forecast detail, see below.

Trillevallen Snow Forecast Highlights

When will there be fresh snow in Trillevallen?

Trillevallen Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (810m)
Next Snow Expected	4 October
Next Snow Amount	1cm
Next 48 Hours	-
Next 7 Days	-

Long-range Snow Outlook for Trillevallen

Snowfall

Snow Line

Max 14℃
Min 3℃

Snow unlikely

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Trillevallen 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 Trillevallen from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Mon 21	Light drizzle.	Max 9℃ Min 5℃
Tue 22	Cloudy.	Max 8℃ Min 3℃
Wed 23	Cloudy.	Max 11℃ Min 6℃
Thu 24	Cloudy.	Max 8℃ Min 5℃
Fri 25	Cloudy.	Max 10℃ Min 4℃
Sat 26	Clear sky.	Max 13℃ Min 4℃
Sun 27	Clear spells.	Max 14℃ Min 4℃

This Snow Forecast for Trillevallen, Sweden 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 Trillevallen, 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.

Trillevallen Snow Forecast updated at 22:48 AEST, next update expected 04:00 AEST.

Ensemble forecast for Trillevallen, Sweden at 630m

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.

Sweden Accommodation (Apartments, Chalets, Hotels) Map

Snow Reliability

Trillevallen typically experiences reliable snow conditions, with an average snow depth of around 1.5 meters during peak season. For the latest updates on snowfall and conditions, check J2Ski for accurate information.

Off-Piste Safety in Trillevallen

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