Grong 7-Day Snow Forecast

Grong Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 20 September 2026 19:41 CDT

Long-Range Snow Forecast for Grong

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

For Forecast detail, see below.

Grong Snow Forecast Highlights

When will there be fresh snow in Grong?

Grong Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (535m)
Next Snow?
There is no snow currently in the forecast for Grong.

Long-range Snow Outlook for Grong

Snowfall

Snow Line

Max 15℃
Min 3℃

Snow unlikely

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Grong 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 Grong from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Mon 21	Light drizzle.	Max 10℃ Min 5℃
Tue 22	Cloudy.	Max 9℃ Min 4℃
Wed 23	Light snow at altitude, light rain below.	Max 11℃ Min 8℃
Thu 24	Light drizzle.	Max 11℃ Min 4℃
Fri 25	Cloudy.	Max 13℃ Min 3℃
Sat 26	Snow showers at altitude, light drizzle below.	Max 13℃ Min 5℃
Sun 27	Clear spells at altitude, light rain showers below.	Max 15℃ Min 3℃

No significant snowfall is forecast for this period.

This Snow Forecast for Grong, 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 Grong, on any given piste 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.

Grong Snow Forecast updated at 19:41 CDT, next update expected 01:00 CDT.

Ensemble forecast for Grong, Norway at 200m

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

Grong typically enjoys reliable snow conditions, with an average depth of 60-100 cm and consistent snowfall throughout the winter months. For the most accurate and up-to-date snow information, be sure to check J2Ski before your trip.

Off-Piste Safety in Grong

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