Big Sky 48-Hour Snow Forecast
Updated 31 August 2026 19:52 BST
2-Day Forecast for Big Sky
48-hours from 31 August.
See below for forecast detail
Big Sky Snow Forecast updated at 19:52 BST, next update expected 22:00 BST.
Forecast for today in Big Sky
Max 22℃ 72°F
Min 2℃ 35°F
Valley temperatures from an overnight low of 2℃ 35°F to daytime highs around 22℃ 72°F
Freeze-thaw conditions up high.
Temperature at BaseTemp at Base
Mon
31
Snow unlikely
Clear sky.
Forecast times for Big Sky are in Denver (US/Mountain) time zone.
Forecast for tomorrow in Big Sky
Max 21℃ 69°F
Min 10℃ 50°F
Valley temperatures from an overnight low of 10℃ 50°F to daytime highs around 21℃ 69°F
Temperature at BaseTemp at Base
Tue
01
Snow unlikely
Clear sky early, then cloudy later.
Forecast times for Big Sky are in Denver (US/Mountain) time zone.
48-hour Forecast Detail
| Base | Snow to | Weather | Temp Town | Rain or Snow? | |||
|---|---|---|---|---|---|---|---|
| Mon | 00:00 | | Clear sky. | 8℃ 47°F | W Breeze | 0% | |
| Mon | 01:00 | | Clear sky. | 7℃ 45°F | W Breeze | 0% | |
| Mon | 02:00 | | Clear sky. | 7℃ 45°F | W Light | 0% | |
| Mon | 03:00 | | Clear sky. | 6℃ 44°F | W Breeze | 0% | |
| Mon | 04:00 | | Clear sky. | 4℃ 39°F | W Breeze | 0% | |
| Mon | 05:00 | | Clear sky. | 3℃ 36°F | W Breeze | 0% | |
| Mon | 06:00 | | Clear sky. | 2℃ 35°F | W Breeze | 0% | |
| Mon | 07:00 | | Clear sky. | 2℃ 36°F | W Breeze | 0% | |
| Mon | 08:00 | | Clear sky. | 4℃ 38°F | W Light | 0% | |
| Mon | 09:00 | | Clear sky. | 8℃ 46°F | W Light | 0% | |
| Mon | 10:00 | | Clear sky. | 11℃ 53°F | W Light | 0% | |
| Mon | 11:00 | | Clear sky. | 14℃ 57°F | W Light | 0% | |
| Mon | 12:00 | | Clear sky. | 17℃ 63°F | W Breeze | 0% | |
| Mon | 13:00 | | Clear sky. | 20℃ 68°F | W Breeze | 0% | |
| Mon | 14:00 | | Clear sky. | 21℃ 70°F | W Breeze | 0% | |
| Mon | 15:00 | | Clear sky. | 22℃ 71°F | W Breeze | 0% | |
| Mon | 16:00 | | Clear sky. | 22℃ 72°F | W Breeze | 0% | |
| Mon | 17:00 | | Clear sky. | 22℃ 71°F | W Breeze | 0% | |
| Mon | 18:00 | | Clear sky. | 22℃ 71°F | W Breeze | 0% | |
| Mon | 19:00 | | Clear sky. | 21℃ 70°F | W Light | 0% | |
| Mon | 20:00 | | Clear sky. | 18℃ 63°F | W Light | 0% | |
| Mon | 21:00 |  | Clear sky at altitude. Fair below. | 15℃ 59°F | W Light | 0% | |
| Mon | 22:00 | | Fair at altitude. Clear below. | 14℃ 57°F | W Light | 0% | |
| Mon | 23:00 | | Cloudy. | 13℃ 56°F | W Light | 0% | |
| Tue | 00:00 | | Cloudy at altitude. Clear below. | 13℃ 55°F | SE Light | 0% | |
| Tue | 01:00 | | Cloudy. | 12℃ 54°F | SE Light | 0% | |
| Tue | 02:00 | | Cloudy. | 13℃ 55°F | SE Light | 0% | |
| Tue | 03:00 | | Cloudy. | 11℃ 52°F | SE Breeze | 0% | |
| Tue | 04:00 | | Cloudy. | 11℃ 52°F | SE Light | 0% | |
| Tue | 05:00 | | Cloudy. | 10℃ 51°F | SE Light | 0% | |
| Tue | 06:00 | | Cloudy. | 11℃ 51°F | SE Light | 0% | |
| Tue | 07:00 | | Cloudy. | 10℃ 50°F | SE Breeze | 5% | |
| Tue | 08:00 | | Cloudy. | 12℃ 53°F | SE Light | 0% | |
| Tue | 09:00 | | Cloudy. | 14℃ 57°F | SE Light | 5% | |
| Tue | 10:00 | | Cloudy. | 16℃ 60°F | SE Light | 5% | |
| Tue | 11:00 | | Cloudy. | 18℃ 64°F | SE Light | 5% | |
| Tue | 12:00 | | Cloudy. | 20℃ 68°F | SE Light | 5% | |
| Tue | 13:00 | | Cloudy. | 21℃ 69°F | SE Light | 5% | |
| Tue | 14:00 | | Cloudy. | 21℃ 69°F | SE Breeze | 5% | |
| Tue | 15:00 | | Clear spells at altitude. Cloud below. | 21℃ 69°F | SE Light | 5% | |
| Tue | 16:00 | | Cloudy. | 20℃ 68°F | SE Breeze | 5% | |
| Tue | 17:00 | | Cloudy. | 21℃ 69°F | SE Breeze | 5% | |
| Tue | 18:00 | | Cloudy. | 21℃ 69°F | SE Breeze | 5% | |
| Tue | 19:00 | | Cloudy. | 20℃ 67°F | SE Breeze | 5% | |
| Tue | 20:00 | | Cloudy. | 17℃ 62°F | SE Breeze | 5% | |
| Tue | 21:00 | | Cloudy. | 15℃ 59°F | SE Breeze | 10% | |
| Tue | 22:00 | | Cloudy. | 15℃ 58°F | SE Breeze | 10% | |
| Tue | 23:00 | | Cloudy. | 14℃ 58°F | SE Breeze | 10% | |
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 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.