Big Sky 48-Hour Snow Forecast
48-hour Forecast for Big Sky (2,070m to 3,410m)
This is the 48-hour (2-Day) Snow Forecast for Big Sky, United States for 2 days from 18 May.
Updated 18 May 2025 18:32 AEST.
Big Sky has 5cm new snow forecast in the next 48 hours.
See below for the detailed Weather and Snow outlook.
Big Sky Snow Forecast updated at 18:32 AEST, next update expected imminently.
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Forecast for today in Big Sky
Max 10℃
Min 3℃
Valley temperatures from an overnight low of 3℃ to daytime highs around 10℃
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Sun
18
up to 2cm New Snow
Cloudy early, then light drizzle later.
Snow Line from 2,549m to 2,379m, with rain below.
Big Sky has 5cm new snow forecast in the next 48 hours.
Forecast for tomorrow in Big Sky
Max 9℃
Min 0℃
Valley temperatures from an overnight low of 0℃ to daytime highs around 9℃
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Mon
19
Snow unlikely
Cloudy early, then clear spells later.
48-hour Forecast Detail
| Base | Snow to | Weather | Temp Town | Rain or Snow? | |||
|---|---|---|---|---|---|---|---|
| Sun | 00:00 | | Cloudy. | 10℃ | SW Breeze | 25% | |
| Sun | 01:00 | | Cloudy. | 8℃ | SW Breeze | 20% | |
| Sun | 02:00 | | Cloudy. | 8℃ | SW Breeze | 15% | |
| Sun | 03:00 | | Fog at altitude. Cloud below. | 7℃ | SW Breeze | 20% | |
| Sun | 04:00 | | Cloudy. | 6℃ | SW Light | 25% | |
| Sun | 05:00 | | Cloudy. | 6℃ | SW Light | 20% | |
| Sun | 06:00 | | Cloudy. | 6℃ | SW Light | 20% | |
| Sun | 07:00 | | Fog at altitude. Cloud below. | 6℃ | SW Light | 10% | |
| Sun | 08:00 | | Cloudy. | 6℃ | SW Light | 10% | |
| Sun | 09:00 | | Cloudy. | 4℃ | SW Light | 15% | |
| Sun | 10:00 | | Cloudy. | 3℃ | SW Light | 15% | |
| Sun | 11:00 | | Cloudy. | 3℃ | SW Light | 15% | |
| Sun | 12:00 | | Cloudy. | 3℃ | SW Light | 15% | |
| Sun | 13:00 | | Fog at altitude. Cloud below. | 4℃ | SW Light | 10% | |
| Sun | 14:00 | | Fog at altitude. Cloud below. | 5℃ | SW Light | 20% | |
| Sun | 15:00 | | Fog at altitude. Cloud below. | 6℃ | SW Light | 35% | |
| Sun | 16:00 |  | Heavy snow showers at altitude. Hvy shwrs below. | 6℃ | SW Light | 40% | |
| Sun | 17:00 | | Heavy snow showers at altitude. Hvy shwrs below. | 6℃ | SW Breeze | 45% | |
| Sun | 18:00 | | Heavy snow showers at altitude. Hvy shwrs below. | 7℃ | SW Breeze | 50% | |
| Sun | 19:00 | | Heavy snow showers at altitude. Hvy shwrs below. | 7℃ | SW Breeze | 50% | |
| Sun | 20:00 | | Heavy snow showers at altitude. Drizzle below. | 7℃ | SW Breeze | 40% | |
| Sun | 21:00 | | Heavy snow showers at altitude. Lt drizzle below. | 7℃ | SW Breeze | 45% | |
| Sun | 22:00 | | Clear spells at altitude. Cloud below. | 8℃ | SW Breeze | 45% | |
| Sun | 23:00 | | Cloudy. | 7℃ | SW Strong | 50% | |
| Mon | 00:00 | | Cloudy. | 6℃ | SW Strong | 50% | |
| Mon | 01:00 |  | Light snow at altitude. Lt drizzle below. | 4℃ | SW Strong | 50% | |
| Mon | 02:00 | | Cloudy. | 3℃ | SW Strong | 40% | |
| Mon | 03:00 | | Cloudy. | 2℃ | SW Strong | 35% | |
| Mon | 04:00 | | Cloudy. | 2℃ | SW Strong | 30% | |
| Mon | 05:00 | | Fog at altitude. Cloud below. | 2℃ | SW Breeze | 20% | |
| Mon | 06:00 | | Fog at altitude. Cloud below. | 1℃ | SW Breeze | 10% | |
| Mon | 07:00 | | Fog at altitude. Cloud below. | 1℃ | SW Breeze | 10% | |
| Mon | 08:00 | | Fog at altitude. Cloud below. | 1℃ | SW Breeze | 5% | |
| Mon | 09:00 | | Fog at altitude. Cloud below. | 0℃ | SW Breeze | 5% | |
| Mon | 10:00 | | Fog at altitude. Cloud below. | 0℃ | SW Breeze | 5% | |
| Mon | 11:00 | | Cloudy. | 0℃ | SW Breeze | 5% | |
| Mon | 12:00 | | Cloudy. | 0℃ | SW Breeze | 5% | |
| Mon | 13:00 | | Cloudy. | 0℃ | SW Breeze | 0% | |
| Mon | 14:00 | | Cloudy. | 1℃ | SW Breeze | 0% | |
| Mon | 15:00 |  | Fair. | 2℃ | SW Breeze | 0% | |
| Mon | 16:00 | | Clear sky at altitude. Fair below. | 3℃ | SW Breeze | 0% | |
| Mon | 17:00 | | Fair. | 5℃ | SW Breeze | 0% | |
| Mon | 18:00 | | Fair at altitude. Mixed below. | 6℃ | SW Breeze | 0% | |
| Mon | 19:00 | | Clear spells. | 7℃ | SW Breeze | 5% | |
| Mon | 20:00 | | Fair at altitude. Cloud below. | 8℃ | SW Breeze | 5% | |
| Mon | 21:00 | | Cloudy at altitude. Mixed below. | 9℃ | SW Breeze | 5% | |
| Mon | 22:00 | | Cloudy at altitude. Mixed below. | 9℃ | SW Breeze | 5% | |
| Mon | 23:00 | | Cloudy. | 9℃ | SW Breeze | 5% | |
Snow Forecast near Big Sky
| Snow Report and Forecast | 48 Hr | Sun | Mon | Tue | Wed | Thu | Fri | Sat | 7 Day |
|---|---|---|---|---|---|---|---|---|---|
| Moonlight Basin | 10cm | 15cm |
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.