Big Sky 48-Hour Snow Forecast
Updated 20 March 2026 22:43 PDT
2-Day Forecast for Big Sky
48-hours from 21 March.
See below for forecast detail
Big Sky Snow Forecast updated at 22:43 PDT, next update expected imminently.
Forecast for today in Big Sky
Max 61°F
Min 40°F
Valley temperatures from an overnight low of 40°F to daytime highs around 61°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Sat
21
Snow unlikely
Clear sky early, then cloudy later.
Forecast times for Big Sky are in Denver (US/Mountain) time zone.
Forecast for tomorrow in Big Sky
Max 50°F
Min 27°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 27°F and rising to 50°F
Temperature at BaseTemp at Base
Sun
22
Snow unlikely
Cloudy early, then clear sky later.
Forecast times for Big Sky are in Denver (US/Mountain) time zone.
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48-hour Forecast Detail
| Base | Snow to | Weather | Temp Town | Rain or Snow? | |||
|---|---|---|---|---|---|---|---|
| Sat | 00:00 |  | Clear sky at altitude. Mixed below. | 53°F | W Breeze | 0% | |
| Sat | 01:00 | | Fair at altitude. Cloud below. | 52°F | W Breeze | 0% | |
| Sat | 02:00 | | Fair at altitude. Cloud below. | 51°F | W Breeze | 0% | |
| Sat | 03:00 | | Clear sky. | 49°F | W Breeze | 0% | |
| Sat | 04:00 | | Clear sky at altitude. Mixed below. | 50°F | W Breeze | 0% | |
| Sat | 05:00 | | Fair at altitude. Cloud below. | 49°F | W Breeze | 0% | |
| Sat | 06:00 | | Clear spells at altitude. Cloud below. | 49°F | W Breeze | 0% | |
| Sat | 07:00 | | Cloudy. | 48°F | W Breeze | 0% | |
| Sat | 08:00 | | Cloudy. | 49°F | W Breeze | 0% | |
| Sat | 09:00 | | Cloudy. | 56°F | W Strong | 0% | |
| Sat | 10:00 | | Cloudy. | 59°F | W Strong | 0% | |
| Sat | 11:00 | | Cloudy. | 60°F | W Strong | 0% | |
| Sat | 12:00 | | Cloudy. | 60°F | W Strong | 0% | |
| Sat | 13:00 | | Cloudy. | 61°F | W Strong | 5% | |
| Sat | 14:00 | | Cloudy. | 61°F | W Strong | 5% | |
| Sat | 15:00 | | Cloudy at altitude. Mixed below. | 60°F | W Strong | 5% | |
| Sat | 16:00 | | Cloudy. | 58°F | W Strong | 15% | |
| Sat | 17:00 | | Cloudy. | 53°F | W Breeze | 15% | |
| Sat | 18:00 | | Cloudy. | 51°F | W Breeze | 10% | |
| Sat | 19:00 | | Cloudy. | 49°F | W Breeze | 5% | |
| Sat | 20:00 | | Cloudy. | 47°F | W Breeze | 5% | |
| Sat | 21:00 | | Cloudy. | 45°F | W Breeze | 5% | |
| Sat | 22:00 | | Cloudy at altitude. Mixed below. | 42°F | W Breeze | 5% | |
| Sat | 23:00 | | Fair at altitude. Cloud below. | 40°F | W Breeze | 5% | |
| Sun | 00:00 | | Clear sky at altitude. Cloud below. | 39°F | NW Light | 5% | |
| Sun | 01:00 | | Clear sky. | 36°F | NW Light | 5% | |
| Sun | 02:00 | | Clear sky. | 33°F | NW Light | 0% | |
| Sun | 03:00 | | Clear sky. | 31°F | NW Light | 0% | |
| Sun | 04:00 | | Clear sky. | 31°F | NW Light | 0% | |
| Sun | 05:00 | | Clear sky. | 29°F | NW Breeze | 0% | |
| Sun | 06:00 | | Clear sky. | 28°F | NW Breeze | 0% | |
| Sun | 07:00 | | Clear sky. | 27°F | NW Breeze | 0% | |
| Sun | 08:00 | | Clear sky. | 27°F | NW Breeze | 0% | |
| Sun | 09:00 | | Clear sky. | 33°F | NW Light | 0% | |
| Sun | 10:00 | | Clear sky. | 38°F | NW Breeze | 0% | |
| Sun | 11:00 | | Clear sky. | 44°F | NW Breeze | 0% | |
| Sun | 12:00 | | Clear sky. | 46°F | NW Breeze | 0% | |
| Sun | 13:00 | | Clear sky. | 47°F | NW Strong | 0% | |
| Sun | 14:00 | | Clear sky. | 49°F | NW Strong | 0% | |
| Sun | 15:00 | | Clear sky. | 50°F | NW Breeze | 0% | |
| Sun | 16:00 | | Clear sky. | 50°F | NW Breeze | 0% | |
| Sun | 17:00 | | Clear sky. | 49°F | NW Breeze | 0% | |
| Sun | 18:00 | | Fair at altitude. Clear below. | 46°F | NW Breeze | 0% | |
| Sun | 19:00 | | Clear sky. | 40°F | NW Light | 0% | |
| Sun | 20:00 | | Clear sky. | 33°F | NW Light | 0% | |
| Sun | 21:00 | | Clear sky. | 32°F | NW Light | 0% | |
| Sun | 22:00 | | Clear sky. | 32°F | NW Light | 0% | |
| Sun | 23:00 | | Clear spells. | 32°F | NW Light | 0% | |
Snow Forecast near Big Sky
Snow forecasts for nearby ski areas.
Snow Forecasts for other Ski Resorts near Big Sky are not available.
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 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
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.