Fonna Glacier 7-Day Snow Forecast

Fonna Glacier Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 11 August 2026 12:42 PDT

Long-Range Snow Forecast for Fonna Glacier

Long-range (14 to 45 days) from 12 August.

For Forecast detail, see below.

Fonna Glacier Snow Forecast Highlights

When will there be fresh snow in Fonna Glacier?

Fonna Glacier Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (4,380ft)
Next Snow Expected	25 August
Next Snow Amount	1in
Next 48 Hours	-
Next 7 Days	-

Long-range Snow Outlook for Fonna Glacier

Snowfall

Snow Line

Max 57°F
Min 27°F

Snow unlikely

Fonna Glacier 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 Fonna Glacier from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Wed 12	Cloudy.	Max 52°F Min 27°F
Thu 13	Cloudy.	Max 54°F Min 38°F
Fri 14	Cloudy.	Max 57°F Min 45°F
Sat 15	Drizzle.	Max 51°F Min 42°F
Sun 16	Light drizzle.	Max 47°F Min 41°F
Mon 17	Light drizzle.	Max 47°F Min 39°F
Tue 18	Fair.	Max 52°F Min 34°F

This Snow Forecast for Fonna Glacier, Norway 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 Fonna Glacier, 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.

Fonna Glacier Snow Forecast updated at 12:42 PDT, next update expected imminently.

Ensemble forecast for Fonna Glacier, Norway at 3,937ft

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

Fonna Glacier boasts impressive snow reliability, with an average snow depth of up to 3 meters. The glacier typically maintains snow cover well into the summer months, making it essential to check the latest snow conditions on J2Ski.

Off-Piste Safety in Fonna Glacier

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