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Alta Snow Forecast - 48 hour - 18th August 2026

Alta 48-Hour Snow Forecast

ECMWF IFS
GEM
GFS

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Updated 18 August 2026 21:50 AEST

2-Day Forecast for Alta

48-hours from 18 August.

See below for forecast detail

Alta Snow Forecast updated at 21:50 AEST, next update expected imminently.

Forecast for today in Alta

Max 23℃
Min 14℃

Valley temperatures from an overnight low of 14℃ to daytime highs around 23℃

Temperature at BaseTemp at Base

Tue
18

Snow unlikely

ClearCloudClearCloud

Clear sky first, cloudy then clear sky, cloudy later.

Forecast times for Alta are in Denver (US/Mountain) time zone.

Forecast for tomorrow in Alta

Max 24℃
Min 15℃

Valley temperatures from an overnight low of 15℃ to daytime highs around 24℃

Temperature at BaseTemp at Base

Wed
19

Snow unlikely

ClearClearClearCloud

Clear sky early, then cloudy later.

Forecast times for Alta are in Denver (US/Mountain) time zone.

48-hour Forecast Detail

48 Hour Weather and Snow Forecast for Alta from OpenMeteo(GFS)
BaseSnow toWeatherTemp
Town
Rain or Snow?
Tue00:00Cloud

Cloudy.16℃SW
Breeze
0%
Tue01:00Cloud

Cloudy.18℃SW
Breeze
10%
Tue02:00Lt Drizzle

Light snow at altitude.
Lt drizzle below.
15℃SW
Light
20%
Tue03:00Fair

Clear sky at altitude.
Fair below.
15℃SW
Light
20%
Tue04:00Clear

Clear sky.15℃SW
Breeze
0%
Tue05:00Clear

Clear sky.14℃SW
Breeze
0%
Tue06:00Clear

Clear sky.14℃SW
Light
0%
Tue07:00Clear

Clear sky.14℃SW
Breeze
0%
Tue08:00Clear

Clear sky.15℃SW
Breeze
0%
Tue09:00Fair

Cloudy at altitude.
Fair below.
18℃SW
Breeze
0%
Tue10:00Fair

Cloudy at altitude.
Fair below.
19℃SW
Breeze
0%
Tue11:00Mixed

Cloudy at altitude.
Mixed below.
20℃SW
Breeze
0%
Tue12:00Cloud

Cloudy.21℃SW
Breeze
0%
Tue13:00Cloud

Cloudy.21℃SW
Breeze
5%
Tue14:00Fair

Cloudy at altitude.
Fair below.
22℃SW
Breeze
5%
Tue15:00Cloud

Cloudy.23℃SW
Breeze
5%
Tue16:00Cloud

Clear spells at altitude.
Cloud below.
22℃SW
Breeze
5%
Tue17:00Cloud

Clear spells at altitude.
Cloud below.
22℃SW
Breeze
5%
Tue18:00Clear

Fair at altitude.
Clear below.
22℃SW
Breeze
5%
Tue19:00Clear

Fair at altitude.
Clear below.
22℃SW
Breeze
5%
Tue20:00Clear

Clear sky.20℃SW
Light
5%
Tue21:00Clear

Cloudy at altitude.
Clear below.
18℃SW
Light
5%
Tue22:00Clear

Cloudy at altitude.
Clear below.
17℃SW
Light
5%
Tue23:00Clear

Clear sky.17℃SW
Calm
5%
Wed00:00Cloud

Fair at altitude.
Cloud below.
16℃W
Light
0%
Wed01:00Clear

Clear sky.16℃W
Light
0%
Wed02:00Clear

Clear sky.16℃W
Light
0%
Wed03:00Clear

Clear sky.16℃W
Light
0%
Wed04:00Clear

Clear sky.15℃W
Breeze
0%
Wed05:00Clear

Clear sky.15℃W
Light
0%
Wed06:00Clear

Clear sky.16℃W
Light
0%
Wed07:00Fair

Fair.15℃W
Light
0%
Wed08:00Mixed

Clear sky at altitude.
Mixed below.
16℃W
Light
0%
Wed09:00Cloud

Clear spells at altitude.
Cloud below.
19℃W
Light
0%
Wed10:00Clear

Clear sky.21℃W
Light
0%
Wed11:00Cloud

Clear spells at altitude.
Cloud below.
22℃W
Light
0%
Wed12:00Cloud

Cloudy.23℃W
Breeze
0%
Wed13:00Cloud

Cloudy.23℃W
Breeze
0%
Wed14:00Cloud

Cloudy.24℃W
Breeze
0%
Wed15:00Cloud

Cloudy.24℃W
Breeze
0%
Wed16:00Clear

Clear sky.24℃W
Breeze
0%
Wed17:00Clear

Clear sky.24℃W
Breeze
0%
Wed18:00Clear

Clear sky.23℃W
Breeze
0%
Wed19:00Clear

Clear sky.22℃W
Breeze
0%
Wed20:00Clear

Clear sky.20℃W
Light
0%
Wed21:00Clear

Clear sky.18℃W
Light
0%
Wed22:00Clear

Clear sky.17℃W
Light
0%
Wed23:00Clear

Clear sky.17℃W
Light
0%

Snow Forecast near Alta

Snow forecasts for nearby ski areas.

Snow Forecasts for other Ski Resorts near Alta are not available.

Alta Snow

For current snow depths and skiing conditions, see our Current Snow Report for Alta.

No significant snowfall is forecast for this period.

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.

Snow Reliability

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.