Alta 7-Day Snow Forecast

Alta Long-Range Snow Forecast Updated today

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Updated 20 October 2026 11:54 AEDT

Long-Range Snow Forecast for Alta

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

For Forecast detail, see below.

Alta Snow Forecast Highlights

When will there be fresh snow in Alta?

Alta Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (2,987m)
Next Snow Expected	23 October
Next Snow Amount	4cm
Next 48 Hours	-
Next 7 Days	4cm

Long-range Snow Outlook for Alta

Snowfall

Snow Line

Max 14℃
Min -4℃

6cm New Snow

Snow Line from 2,779m to resort level (2,600m).

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Alta 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 Alta from OpenMeteo(GFS)
	Snow and Weather	Temp Town
Tue 20	Clear sky.	Max 11℃ Min 5℃
Wed 21	Clear sky.	Max 14℃ Min 5℃
Thu 22	Cloudy.	Max 12℃ Min 4℃
Fri 23	2cm to 6cm New Snow Light snow showers. Snow Line from 2,779m to resort level (2,600m).	Max 6℃ Min -1℃
Sat 24	Clear sky.	Max 7℃ Min -4℃
Sun 25	Clear sky.	Max 11℃ Min 1℃
Mon 26	Clear sky.	Max 11℃ Min 2℃

This Snow Forecast for Alta, 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 Alta, 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.

Alta Snow Forecast updated at 11:54 AEDT, next update expected 17:00 AEDT.

Ensemble forecast for Alta, USA at 2,600m

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.

United States Accommodation (Apartments, Chalets, Hotels) Map

Snow Forecast near Alta

Snow Forecasts for Ski Resorts near Alta
Ski Area	48 Hr	7 Day
Brighton (Utah)	-	2cm
Deer Valley Resort	-	2cm
Park City	-	2cm
Solitude	-	2cm

How reliable is the snow in Alta?

Alta is known for its impressive snow reliability, with typical snow depths ranging from 100 to 300 inches. For the latest snow conditions, visit J2Ski for up-to-date information.

Off-Piste Safety in Alta

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