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Big Sky Snow Forecast - 31st May 2026

Big Sky Snow Report and Forecast

ECMWF IFS
GEM
GFS

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Updated 31 May 2026 18:49 BST

Snow Forecast for Big Sky

Snow and Weather from 31 May.

For Forecast detail, see below.

Big Sky 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?
There is no snow currently in the forecast for Big Sky.

Forecast for today in Big Sky

Max 9℃ 48°F
Min 4℃ 39°F

Valley temperatures from an overnight low of 4℃ 39°F to daytime highs around 9℃ 48°F
Freeze-thaw from mid-mountain up.

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Sun
31

up to 1cm New Snow

CloudCloudCloudCloud

Cloudy.

Snow falling to 2,699m 8,855ft , with rain below.

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

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Big Sky 7-Day Snow Forecast Overview

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Summary Weather and Snow Forecast for Big Sky from OpenMeteo(GFS)
Sun
31
Mon
01
Tue
02
Wed
03
Thu
04
Fri
05
Sat
06
WindNW F3W F3S F2S F2S F3
3,410m 11,188ft
-2℃ 28°F
Fog
+1cm
5℃ 40°F
Cloud
8℃ 46°F
Cloud
11℃ 51°F
Clear
11℃ 52°F
Lt Rain
11℃ 52°F
Clear
14℃ 56°F
Clear
NW F4NW F3S F2S F2S F3
2,740m 8,990ft
2℃ 35°F
Fog
9℃ 48°F
Cloud
12℃ 54°F
Cloud
15℃ 59°F
Clear
16℃ 60°F
Lt Rain
16℃ 60°F
Clear
18℃ 64°F
Clear
W F2W F2S F2S F2S F3
2,070m 6,791ft
9℃ 48°F
Cloud
16℃ 60°F
Cloud
16℃ 62°F
Cloud
19℃ 67°F
Clear
20℃ 68°F
Lt Rain
20℃ 68°F
Clear
22℃ 72°F
Clear
Snow Line

2,699m 8,855ft

Max Town 9℃ 48°F 16℃ 60°F 16℃ 62°F 19℃ 67°F 20℃ 68°F 20℃ 68°F 22℃ 72°F
Min Town 4℃ 39°F 2℃ 35°F 3℃ 37°F 4℃ 40°F 8℃ 46°F 5℃ 41°F 7℃ 44°F

This table shows the average forecast snowfall, the maximum temperature, and expected general weather at resort, lower and upper mountain levels. For daily forecast details, see below.

Snow Forecast near Big Sky

Snow Forecasts for Ski Resorts near Big Sky
Ski Area 48 Hr 7 DaySuMoTuWeThFrSa
Moonlight Basin--

Snow Reliability

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.

Understanding and predicting Snow Conditions in Big Sky

Here are our tips for making the most of a trip to Big Sky, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Big Sky, but like any mountain, snow conditions change throughout the season, from day to day, and even from hour to hour.

Whether you’re sticking to the marked pistes or venturing off-piste, here’s what you need to know:

Pistes (Groomers) or Off-Piste

These can be a world apart, regarding snow conditions, even ignoring the difference between the natural terrain features to be found off-piste and the generally controlled surfaces and slopes of a pisted (groomed) run.

  • Piste Conditions can range from fresh powder to firm, icy surfaces, particularly after warm spells or a busy day on the mountain with the passage of many skiers.
  • Off-Piste Conditions are far more variable. Wind and sun can quickly transform fresh snow into wind crust or slushy layers, whilst cold weather can preserve stashes of powder many days after a snowfall.

WARNING - skiing off-piste (out-of-bounds) at Big Sky is not always controlled (slopes made safe from avalanche risk) or patrolled. Always check local advice, ski with safety kit (and know how to use it), and never ski alone.

Analyzing Weather and Snowfall Forecasts

Whilst no forecast can tell you exactly how snow conditions in Big Sky will develop, checking the forecast regularly should give you an idea of what to expect.

New snowfall can bring fresh powder and refresh the surfaces of pisted runs. Powder can be tracked out quickly at busy times, but in less crowded and shaded areas, fresh snow can linger for days.

Changes in weather conditions, such as milder temperatures, rain or wind, can degrade snow quality. Conversely, cold, stable weather can preserve conditions for extended periods.

Predicting Future Snow Quality

Regularly check our snow and weather forecasts for Big Sky for changes that may affect snow quality. Forecast snowfall depth and recent snowfall are good indicators of what to expect.

Use historical data and recent snow reports to understand past snow conditions and anticipate future changes.