Big Sky Snow Forecast - 7 day
Updated 25 September 2026 06:42 NZST
7-Day Snow Forecast for Big Sky
1-week from 24 September.
For Forecast detail, see below.
There is some snow in the long-range forecast (8 to 16 days from today)!
J2Ski - Sign In for a long-range snow forecast, with more weather detail.
Big Sky 7-Day Snow Forecast Highlights
When will there be fresh snow in Big Sky?
| Next Snow Expected | 3 October |
|---|---|
| Next Snow Amount | 7cm |
| Next 48 Hours | - |
| Next 7 Days | - |
7-Day Snow Outlook for Big Sky
Snowfall
Snow Line
Max 23℃
Min 1℃
Snow unlikely
There is some snow in the long-range forecast (8 to 16 days from today)!
J2Ski - Sign In for a long-range snow forecast, with more weather detail.
Partner Offers
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 23℃
Min 4℃
Valley temperatures from an overnight low of 4℃ to daytime highs around 23℃
Freeze-thaw conditions up high.
Temperature at BaseTemp at Base
Thu
24
Snow unlikely
Clear sky.
Forecast times for Big Sky are in Denver (US/Mountain) time zone.
Max 22℃
Min 10℃
Valley temperatures from an overnight low of 10℃ to daytime highs around 22℃
Temperature at BaseTemp at Base
Fri
25
Snow unlikely
Clear sky, cloudy, clear sky later.
Forecast times for Big Sky are in Denver (US/Mountain) time zone.
Max 14℃
Min 5℃
Valley temperatures from an overnight low of 5℃ to daytime highs around 14℃
Freeze-thaw conditions up high.
Temperature at BaseTemp at Base
Sat
26
Snow unlikely
Clear sky early, then cloudy later.
Forecast times for Big Sky are in Denver (US/Mountain) time zone.
Max 16℃
Min 6℃
Valley temperatures from an overnight low of 6℃ to daytime highs around 16℃
Freeze-thaw conditions up high.
Temperature at BaseTemp at Base
Sun
27
Snow unlikely
Cloudy.
Forecast times for Big Sky are in Denver (US/Mountain) time zone.
Max 13℃
Min 4℃
Valley temperatures from an overnight low of 4℃ to daytime highs around 13℃
Freeze-thaw conditions up high.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Mon
28
Snow unlikely
Cloudy.
Forecast times for Big Sky are in Denver (US/Mountain) time zone.
Max 15℃
Min 2℃
Valley temperatures from an overnight low of 2℃ to daytime highs around 15℃
Freeze-thaw from mid-mountain up.
Temperature at BaseTemp at Base
Tue
29
Snow unlikely
Clear sky early, then cloudy later.
Forecast times for Big Sky are in Denver (US/Mountain) time zone.
Max 13℃
Min 1℃
Valley temperatures from an overnight low of 1℃ to daytime highs around 13℃
Freeze-thaw from mid-mountain up.
Temperature at BaseTemp at Base
Wed
30
Snow unlikely
Clear spells early, then cloudy later.
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 06:42 NZST, next update expected imminently.
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.