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Big Sky 7-Day Snow Forecast - 31st October 2026

Big Sky Snow Forecast - 7 day

ECMWF IFS
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Updated 30 October 2026 18:44 CDT

7-Day Snow Forecast for Big Sky

1-week from 31 October.

For Forecast detail, see below.

Big Sky 7-Day Snow Forecast Highlights

When will there be fresh snow in Big Sky?

Big Sky Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (2,740m)
Next Snow Expected1 November
Next Snow Amount6cm
Next 48 Hours9cm
Next 7 Days22cm

7-Day Snow Outlook for Big Sky

 
Snowfall

 
Snow Line

Max 8℃
Min -4℃

27cm New Snow

Snow Line from 2,669m to resort level (2,070m).

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Big Sky Medium-Range (7-Day) Snow Forecast Detail

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.

Max 8℃
Min 2℃

Valley temperatures from an overnight low of 2℃ to daytime highs around 8℃

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Sat
31

up to 3cm New Snow

CloudCloudCloudMixed

Cloudy early, then clear spells later.

Snow Line from 2,669m to 2,549m, with rain below.

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

Max 5℃
Min 2℃

Valley temperatures from an overnight low of 2℃ to daytime highs around 5℃

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Sun
01

up to 6cm New Snow

CloudCloudCloudLt Drizzle

Cloudy early, then light drizzle later.

Snow Line from 2,559m to 2,179m, with rain below.

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

Max 4℃
Min -4℃

Freeze-thaw conditions, with valley temperatures cooling to -4℃ and rising to 4℃

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Mon
02

1cm to 3cm New Snow

Light SnowLight SnowLight SnowSnow

Light snow at altitude, light snow, snow showers at altitude later.

Snow Line from 2,269m to resort level (2,070m).

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

Max 7℃
Min -4℃

Freeze-thaw conditions, with valley temperatures cooling to -4℃ and rising to 7℃

Temperature at BaseTemp at Base

Tue
03

Snow unlikely

CloudClearCloudCloud

Cloudy, clear sky, cloudy later.

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

Max 6℃
Min -2℃

Freeze-thaw conditions, with valley temperatures cooling to -2℃ and rising to 6℃

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Wed
04

Snow unlikely

CloudCloudCloudCloud

Cloudy.

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

Max 6℃
Min -2℃

Freeze-thaw conditions, with valley temperatures cooling to -2℃ and rising to 6℃

Temperature at BaseTemp at Base

Thu
05

Snow unlikely

FairFairMixedCloud

Fair, clear spells, cloudy later.

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

Max 4℃
Min -4℃

Freeze-thaw conditions, with valley temperatures cooling to -4℃ and rising to 4℃

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Fri
06

6cm to 15cm New Snow

CloudCloudLight SnowLight Snow

Cloudy, light snow, light snow at altitude later.

Snow Line from 2,409m to resort level (2,070m).

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

This Snow Forecast for Big Sky, 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 Big Sky, 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.

Big Sky Snow Forecast updated at 18:44 CDT, next update expected imminently.

Snow Forecast near Big Sky

Snow Forecasts for Ski Resorts near Big Sky
Ski Area 48 Hr 7 DaySaSuMoTuWeThFr
Moonlight Basin11cm 22cm

How reliable is the snow in Big Sky?

Big Sky enjoys reliable snow conditions, with an average annual snowfall of over 400 inches. Skiers can expect a solid snow depth throughout the season, but it's advisable to check J2Ski for the latest snow conditions.