Grand Targhee 7-Day Snow Forecast

Grand Targhee Long-Range Snow Forecast Updated today

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Updated 14 August 2026 06:48 NZST

Long-Range Snow Forecast for Grand Targhee

Long-range (14 to 45 days) from 13 August.

For Forecast detail, see below.

Grand Targhee Snow Forecast Highlights

When will there be fresh snow in Grand Targhee?

Grand Targhee Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (2,775m)
Next Snow?
There is no snow currently in the forecast for Grand Targhee.

Long-range Snow Outlook for Grand Targhee

Snowfall

Snow Line

Max 25℃
Min 7℃

Snow unlikely

Grand Targhee 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 Grand Targhee from OpenMeteo(GFS)
	Snow and Weather	Temp Town
Thu 13	Clear sky.	Max 17℃ Min 10℃
Fri 14	Cloudy.	Max 13℃ Min 9℃
Sat 15	Clear sky.	Max 21℃ Min 7℃
Sun 16	Clear sky.	Max 25℃ Min 10℃
Mon 17	Cloudy.	Max 24℃ Min 11℃
Tue 18	Cloudy.	Max 22℃ Min 10℃
Wed 19	Cloudy.	Max 22℃ Min 9℃

No significant snowfall is forecast for this period.

This Snow Forecast for Grand Targhee, 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 Grand Targhee, 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.

Grand Targhee Snow Forecast updated at 06:48 NZST, next update expected 12:00 NZST.

Ensemble forecast for Grand Targhee, USA at 2,440m

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

Grand Targhee is known for its exceptional snow reliability, averaging 500 inches of snowfall annually. With consistent snow depth and minimal melt, be sure to check J2Ski for the latest snow conditions before your visit.

Off-Piste Safety in Grand Targhee

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