Big Sky Snow Report and Forecast
Snow Forecast for Big Sky
When will there be fresh snow?
This is the Snow Forecast for Big Sky, United States for 16 days from 18 June.
Updated 18 June 2025 14:06 IST.
| Next Snow Expected | 22 June |
|---|---|
| Next Snow Amount | 6cm |
| Next 48 Hours | - |
| Next 7 Days | 9cm |
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For Forecast detail, see below.
For current snow depths and skiing conditions, see our Current Snow Report for Big Sky.
Forecast for today in Big Sky
Max 25℃
Min 10℃
Valley temperatures from an overnight low of 10℃ to daytime highs around 25℃
Temperature at BaseTemp at Base
Wed
18
Snow unlikely
Clear sky.
Big Sky has no new snow forecast in the next 48 hours.
Big Sky Snow Report
| Upper Snow Depths |
| - |
| Lower Snow Depths |
| - |
| Snow Conditions |
| - |
Big Sky 7-Day Snow Forecast Overview
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| Wed 18 | Thu 19 | Fri 20 | Sat 21 | Sun 22 | Mon 23 | Tue 24 | |
|---|---|---|---|---|---|---|---|
| Wind | W F3 | SW F3 | SE F3 | S F3 | |||
| 3,410m | 13℃
| 18℃
| 17℃
 | 12℃
| 6℃
 +8cm
| 6℃
+1cm
| 11℃
 |
| W F3 | SW F3 | SE F3 | S F3 | ||||
| 2,740m | 18℃
| 22℃
| 21℃
| 16℃
| 10℃
+6cm
| 10℃
| 16℃
|
| SW F2 | SW F3 | SE F3 | SW F3 | ||||
| 2,070m | 25℃
| 28℃
| 28℃
| 21℃
| 14℃
+6cm
| 14℃
| 18℃
 |
| Snow Line | varying 2,319m | 2,299m | |||||
| Max Town | 25℃ | 28℃ | 28℃ | 21℃ | 14℃ | 14℃ | 18℃ |
| Min Town | 10℃ | 13℃ | 9℃ | 3℃ | 1℃ | -2℃ | 3℃ |
This table shows the average forecast snowfall, the maximum temperature, and expected general weather at resort, lower and upper mountain levels. For daily forecast details, see below.
Big Sky Medium-Range (7-Day) Snow Forecast Detail
Note :- Mountain weather is extremely dynamic; the forecast below will change. Any forecast snow may move forward or back in the forecast, and predicted snowfall depths will be revised in subsequent updates.
Max 25℃
Min 10℃
Valley temperatures from an overnight low of 10℃ to daytime highs around 25℃
Temperature at BaseTemp at Base
Wed
18
Snow unlikely
Clear sky.
Max 28℃
Min 13℃
Valley temperatures from an overnight low of 13℃ to daytime highs around 28℃
Temperature at BaseTemp at Base
Thu
19
Snow unlikely
Clear sky.
Max 28℃
Min 9℃
Valley temperatures from an overnight low of 9℃ to daytime highs around 28℃
Temperature at BaseTemp at Base
Fri
20
Snow unlikely
Cloudy first, rain showers then cloudy, clear sky later.
Max 21℃
Min 3℃
Valley temperatures from an overnight low of 3℃ to daytime highs around 21℃
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Sat
21
Snow unlikely
Cloudy, light drizzle, clear sky later.
Max 14℃
Min 1℃
Valley temperatures from an overnight low of 1℃ to daytime highs around 14℃
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Sun
22
6cm to 8cm New Snow
Clear spells first, snow showers then light snow showers, clear spells later.
Snow Line from 2,319m to resort level.
Max 14℃
Min -2℃
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -2℃ and rising to 14℃
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Mon
23
up to 1cm New Snow
Light snow at altitude first, clear sky then fair, cloudy later.
Snow falling to 2,299m, with rain below.
Max 18℃
Min 3℃
Valley temperatures from an overnight low of 3℃ to daytime highs around 18℃
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Tue
24
Snow unlikely
Fair, clear sky, cloudy later.
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.
Big Sky Snow Forecast updated at 14:06 IST, next update expected 16:30 IST.
Snow Forecast near Big Sky
| Snow Report and Forecast | 48 Hr | Wed | Thu | Fri | Sat | Sun | Mon | Tue | 7 Day |
|---|---|---|---|---|---|---|---|---|---|
| Moonlight Basin | - | 1cm |
Understanding and predicting Snow Conditions in Big Sky
Here are our tips for making the most of a trip to Big Sky, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Big Sky, but like any mountain, snow conditions change throughout the season, from day to day, and even from hour to hour.
Whether you’re sticking to the marked pistes or venturing off-piste, here’s what you need to know:
Pistes (Groomers) or Off-Piste
These can be a world apart, regarding snow conditions, even ignoring the difference between the natural terrain features to be found off-piste and the generally controlled surfaces and slopes of a pisted (groomed) run.
- Piste Conditions can range from fresh powder to firm, icy surfaces, particularly after warm spells or a busy day on the mountain with the passage of many skiers.
- Off-Piste Conditions are far more variable. Wind and sun can quickly transform fresh snow into wind crust or slushy layers, whilst cold weather can preserve stashes of powder many days after a snowfall.
WARNING - skiing off-piste (out-of-bounds) at Big Sky is not always controlled (slopes made safe from avalanche risk) or patrolled. Always check local advice, ski with safety kit (and know how to use it), and never ski alone.
Analyzing Weather and Snowfall Forecasts
Whilst no forecast can tell you exactly how snow conditions in Big Sky will develop, checking the forecast regularly should give you an idea of what to expect.
New snowfall can bring fresh powder and refresh the surfaces of pisted runs. Powder can be tracked out quickly at busy times, but in less crowded and shaded areas, fresh snow can linger for days.
Changes in weather conditions, such as milder temperatures, rain or wind, can degrade snow quality. Conversely, cold, stable weather can preserve conditions for extended periods.
Predicting Future Snow Quality
Regularly check our snow and weather forecasts for Big Sky for changes that may affect snow quality. Forecast snowfall depth and recent snowfall are good indicators of what to expect.
Use historical data and recent snow reports to understand past snow conditions and anticipate future changes.