Big Sky 48-Hour Snow Forecast
Updated 28 September 2026 18:41 NZDT
2-Day Forecast for Big Sky
48-hours from 28 September.
See below for forecast detail
Big Sky Snow Forecast updated at 18:41 NZDT, next update expected imminently.
Forecast for today in Big Sky
Max 15℃
Min 4℃
Valley temperatures from an overnight low of 4℃ to daytime highs around 15℃
Freeze-thaw conditions up high.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Mon
28
up to 3cm New Snow
Cloudy, rain showers, cloudy later.
Snow falling to 2,819m, with rain below.
Forecast times for Big Sky are in Denver (US/Mountain) time zone.
Forecast for tomorrow in Big Sky
Max 18℃
Min 3℃
Valley temperatures from an overnight low of 3℃ to daytime highs around 18℃
Freeze-thaw conditions up high.
Temperature at BaseTemp at Base
Tue
29
Snow unlikely
Clear sky.
Forecast times for Big Sky are in Denver (US/Mountain) time zone.
Partner Offers
Partner Offers
48-hour Forecast Detail
| Base | Snow to | Weather | Temp Town | Rain or Snow? | |||
|---|---|---|---|---|---|---|---|
| Mon | 00:00 | | Fair at altitude. Clear below. | 6℃ | SE Light | 0% | |
| Mon | 01:00 | | Cloudy. | 6℃ | SE Light | 5% | |
| Mon | 02:00 | | Cloudy. | 6℃ | SE Light | 5% | |
| Mon | 03:00 |  | Clear sky at altitude. Fair below. | 6℃ | SE Light | 10% | |
| Mon | 04:00 | | Cloudy. | 5℃ | SE Light | 20% | |
| Mon | 05:00 | | Clear spells at altitude. Cloud below. | 6℃ | SE Light | 35% | |
| Mon | 06:00 |  | up to 3cm New Snow | Snow at altitude. Sleet below. | 5℃ | SE Breeze | 35% |
| Mon | 07:00 | | Cloudy. | 5℃ | SE Breeze | 20% | |
| Mon | 08:00 | | Cloudy at altitude. Mixed below. | 4℃ | SE Breeze | 0% | |
| Mon | 09:00 | | Clear sky at altitude. Fair below. | 6℃ | SE Breeze | 0% | |
| Mon | 10:00 | | Clear sky. | 9℃ | SE Breeze | 0% | |
| Mon | 11:00 | | Cloudy. | 10℃ | SE Light | 0% | |
| Mon | 12:00 | | Cloudy. | 12℃ | SE Light | 0% | |
| Mon | 13:00 | | Cloudy. | 14℃ | SE Light | 5% | |
| Mon | 14:00 | | Clear spells at altitude. Fair below. | 15℃ | SE Breeze | 10% | |
| Mon | 15:00 | | Clear spells. | 15℃ | SE Breeze | 10% | |
| Mon | 16:00 | | Clear spells at altitude. Cloud below. | 15℃ | SE Breeze | 15% | |
| Mon | 17:00 | | Cloudy at altitude. Mixed below. | 15℃ | SE Breeze | 10% | |
| Mon | 18:00 | | Cloudy. | 14℃ | SE Light | 5% | |
| Mon | 19:00 | | Cloudy. | 12℃ | SE Light | 0% | |
| Mon | 20:00 | | Cloudy at altitude. Clear below. | 10℃ | SE Breeze | 0% | |
| Mon | 21:00 | | Clear spells. | 9℃ | SE Light | 0% | |
| Mon | 22:00 | | Clear spells. | 8℃ | SE Calm | 0% | |
| Mon | 23:00 | | Clear sky. | 7℃ | SE Light | 0% | |
| Tue | 00:00 | | Clear sky. | 6℃ | SW Light | 0% | |
| Tue | 01:00 | | Clear sky. | 6℃ | SW Light | 0% | |
| Tue | 02:00 | | Clear sky. | 5℃ | SW Light | 0% | |
| Tue | 03:00 | | Clear sky. | 5℃ | SW Light | 0% | |
| Tue | 04:00 | | Clear sky. | 5℃ | SW Light | 0% | |
| Tue | 05:00 | | Clear sky. | 3℃ | SW Light | 0% | |
| Tue | 06:00 | | Clear sky. | 4℃ | SW Light | 0% | |
| Tue | 07:00 | | Clear sky. | 5℃ | SW Light | 0% | |
| Tue | 08:00 | | Clear sky. | 4℃ | SW Breeze | 0% | |
| Tue | 09:00 | | Clear sky. | 7℃ | SW Light | 0% | |
| Tue | 10:00 | | Clear sky. | 9℃ | SW Breeze | 0% | |
| Tue | 11:00 | | Clear sky. | 13℃ | SW Breeze | 0% | |
| Tue | 12:00 | | Clear sky. | 15℃ | SW Breeze | 0% | |
| Tue | 13:00 | | Clear sky. | 17℃ | SW Breeze | 0% | |
| Tue | 14:00 | | Clear sky. | 17℃ | SW Breeze | 0% | |
| Tue | 15:00 | | Clear sky. | 18℃ | SW Breeze | 0% | |
| Tue | 16:00 | | Clear sky. | 18℃ | SW Breeze | 0% | |
| Tue | 17:00 | | Clear sky. | 17℃ | SW Breeze | 0% | |
| Tue | 18:00 | | Clear sky. | 16℃ | SW Light | 0% | |
| Tue | 19:00 | | Clear sky. | 12℃ | SW Light | 0% | |
| Tue | 20:00 | | Clear sky. | 10℃ | SW Light | 0% | |
| Tue | 21:00 | | Clear sky. | 10℃ | SW Light | 0% | |
| Tue | 22:00 | | Clear sky. | 9℃ | SW Light | 0% | |
| Tue | 23:00 | | Cloudy. | 9℃ | SW Light | 0% | |
Snow Forecast near Big Sky
Snow forecasts for nearby ski areas.
| Ski Area | 48 Hr | 7 Day | Mo | Tu | We | Th | Fr | Sa | Su |
|---|---|---|---|---|---|---|---|---|---|
| Moonlight Basin | 1cm | 1cm |
Big Sky Snow
For current snow depths and skiing conditions, see our Current Snow Report for Big Sky.
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.
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.