Big Sky 48-Hour Snow Forecast
Updated 31 October 2026 05:44 GMT
Powder Alarm
Powder Alarm issued 31 October 2026 05:52 GMT
Powder Possible :- 14cm 6in of Fresh Snow is forecast for Big Sky over the next 2 days.
2-Day Forecast for Big Sky
48-hours from 31 October.
See below for forecast detail
Big Sky Snow Forecast updated at 05:44 GMT, next update expected 08:00 GMT.
Forecast for today in Big Sky
Max 9℃ 47°F
Min 2℃ 35°F
Valley temperatures from an overnight low of 2℃ 35°F to daytime highs around 9℃ 47°F
Freeze-thaw from mid-mountain up.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Sat
31
up to 6cm up to 2in New Snow
Cloudy, clear sky, cloudy later.
Snow Line from 2,599m 8,527ft to 2,479m 8,133ft , with rain below.
Forecast times for Big Sky are in Denver (US/Mountain) time zone.
Powder Alert!
Powder Alarm issued 31 October 2026 05:52 GMT
Powder Possible :- 14cm 6in of Fresh Snow is forecast for Big Sky over the next 2 days.
Forecast for tomorrow in Big Sky
Max 6℃ 43°F
Min 2℃ 35°F
Valley temperatures from an overnight low of 2℃ 35°F to daytime highs around 6℃ 43°F
Temperature at BaseTemp at Base
Snowfall
Snow Line
Sun
01
up to 8cm up to 3in New Snow
Cloudy, snow showers at altitude, light drizzle later.
Snow Line from 2,569m 8,428ft to 2,119m 6,952ft , with rain below.
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 |  | up to 1cm New Snow | Heavy snow showers at altitude. Hvy shwrs below. | 4℃ 39°F | SE Breeze | 50% |
| Sat | 01:00 | | up to 2cm up to 1in New Snow | Heavy snow showers at altitude. Hvy shwrs below. | 3℃ 37°F | SE Light | 60% |
| Sat | 02:00 | | up to 2cm up to 1in New Snow | Heavy snow showers at altitude. Hvy shwrs below. | 2℃ 35°F | SE Light | 55% |
| Sat | 03:00 |  | up to 2cm up to 1in New Snow | Heavy snow at altitude. Hvy rain below. | 2℃ 36°F | SE Light | 30% |
| Sat | 04:00 | | Cloudy. | 3℃ 38°F | SE Light | 15% | |
| Sat | 05:00 | | Fog at altitude. Cloud below. | 3℃ 37°F | SE Light | 5% | |
| Sat | 06:00 | | Cloudy at altitude. Mixed below. | 3℃ 37°F | SE Light | 5% | |
| Sat | 07:00 | | Fog at altitude. Fair below. | 2℃ 36°F | SE Light | 5% | |
| Sat | 08:00 | | Clear spells. | 2℃ 35°F | SE Light | 5% | |
| Sat | 09:00 | | Fog at altitude. Clear below. | 2℃ 36°F | SE Light | 5% | |
| Sat | 10:00 | | Fair at altitude. Clear below. | 4℃ 39°F | SE Light | 5% | |
| Sat | 11:00 | | Fog at altitude. Cloud below. | 6℃ 42°F | SE Light | 5% | |
| Sat | 12:00 | | Cloudy. | 7℃ 44°F | SE Light | 10% | |
| Sat | 13:00 | | Cloudy at altitude. Fair below. | 8℃ 46°F | SE Light | 10% | |
| Sat | 14:00 | | Cloudy. | 9℃ 47°F | SE Breeze | 10% | |
| Sat | 15:00 | | Cloudy. | 8℃ 47°F | SE Breeze | 20% | |
| Sat | 16:00 | | Cloudy. | 8℃ 47°F | SE Breeze | 30% | |
| Sat | 17:00 | | Cloudy. | 8℃ 46°F | SE Breeze | 20% | |
| Sat | 18:00 | | Fog at altitude. Cloud below. | 6℃ 42°F | SE Breeze | 15% | |
| Sat | 19:00 | | Fog at altitude. Cloud below. | 5℃ 40°F | SE Light | 10% | |
| Sat | 20:00 | | Fog at altitude. Cloud below. | 5℃ 40°F | SE Light | 15% | |
| Sat | 21:00 | | Fog at altitude. Cloud below. | 4℃ 39°F | SE Breeze | 5% | |
| Sat | 22:00 | | Fog at altitude. Cloud below. | 3℃ 38°F | SE Light | 5% | |
| Sat | 23:00 | | Fog at altitude. Cloud below. | 3℃ 38°F | SE Breeze | 5% | |
| Sun | 00:00 | | Fog at altitude. Cloud below. | 3℃ 38°F | SW Breeze | 5% | |
| Sun | 01:00 | | Fog at altitude. Cloud below. | 2℃ 36°F | SW Breeze | 5% | |
| Sun | 01:00 | | Fog at altitude. Cloud below. | 2℃ 36°F | SW Breeze | 0% | |
| Sun | 02:00 | | Fog at altitude. Cloud below. | 3℃ 36°F | SW Breeze | 5% | |
| Sun | 03:00 | | Fog at altitude. Cloud below. | 3℃ 37°F | SW Breeze | 5% | |
| Sun | 04:00 | | Fog at altitude. Cloud below. | 3℃ 36°F | SW Breeze | 10% | |
| Sun | 05:00 | | Cloudy. | 3℃ 38°F | SW Breeze | 15% | |
| Sun | 06:00 | | Cloudy. | 3℃ 38°F | SW Breeze | 10% | |
| Sun | 07:00 | | Cloudy. | 3℃ 37°F | SW Breeze | 10% | |
| Sun | 08:00 |  | Light snow at altitude. Lt drizzle below. | 3℃ 38°F | SW Breeze | 15% | |
| Sun | 09:00 | | Light snow at altitude. Lt drizzle below. | 3℃ 38°F | SW Breeze | 20% | |
| Sun | 10:00 |  | Heavy snow showers at altitude. Hvy shwrs below. | 4℃ 38°F | SW Light | 65% | |
| Sun | 11:00 | | Heavy snow showers at altitude. Hvy shwrs below. | 4℃ 40°F | SW Breeze | 65% | |
| Sun | 12:00 | | Heavy snow showers at altitude. Hvy shwrs below. | 5℃ 42°F | SW Light | 95% | |
| Sun | 13:00 | | Heavy snow showers at altitude. Hvy shwrs below. | 6℃ 42°F | SW Light | 95% | |
| Sun | 14:00 | | Heavy snow showers at altitude. Hvy shwrs below. | 6℃ 43°F | SW Light | 95% | |
| Sun | 15:00 | | up to 1cm New Snow | Heavy snow showers at altitude. Hvy shwrs below. | 6℃ 43°F | SW Light | 95% |
| Sun | 16:00 | | Heavy snow showers at altitude. Hvy shwrs below. | 5℃ 41°F | SW Light | 95% | |
| Sun | 17:00 | | Heavy snow showers at altitude. Hvy shwrs below. | 4℃ 39°F | SW Light | 95% | |
| Sun | 18:00 | | up to 1cm New Snow | Light snow at altitude. Lt rain below. | 3℃ 38°F | SW Light | 100% |
| Sun | 19:00 | | up to 1cm New Snow | Light snow at altitude. Lt rain below. | 3℃ 37°F | SW Light | 100% |
| Sun | 20:00 | | up to 1cm New Snow | Light snow at altitude. Lt rain below. | 3℃ 37°F | SW Light | 100% |
| Sun | 21:00 | | up to 1cm New Snow | Light snow at altitude. Drizzle below. | 3℃ 36°F | SW Light | 100% |
| Sun | 22:00 | | Light snow at altitude. Drizzle below. | 2℃ 36°F | SW Light | 100% | |
Snow Forecast near Big Sky
Snow forecasts for nearby ski areas.
| Ski Area | 48 Hr | 7 Day | Sa | Su | Mo | Tu | We | Th | Fr |
|---|---|---|---|---|---|---|---|---|---|
| Moonlight Basin | 15cm 6in | 19cm 7in |
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.
How reliable is the snow in Big Sky?
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.