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 4 May.
Updated 04 May 2025 12:37 NZST.
| Next Snow Expected | 5 May |
|---|---|
| Next Snow Amount | 2cm |
| Next 48 Hours | 9cm |
| 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 20℃
Min 6℃
Valley temperatures from an overnight low of 6℃ to daytime highs around 20℃
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Sun
04
Snow unlikely
Clear sky early, then cloudy later.
Big Sky has 9cm 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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| Sun 04 | Mon 05 | Tue 06 | Wed 07 | Thu 08 | Fri 09 | Sat 10 | |
|---|---|---|---|---|---|---|---|
| Wind | SE F2 | NE F4 | SE F2 | ||||
| 3,410m | 10℃
| 6℃
 +3cm
| -6℃
 +6cm
| 2℃
| 7℃
| 10℃
 | 11℃
|
| SE F3 | NE F4 | SE F2 | |||||
| 2,740m | 14℃
| 11℃
+2cm
| -2℃
+6cm
| 7℃
| 12℃
| 14℃
| 15℃
|
| SE F2 | SE F2 | NE F2 | S F2 | S F2 | SW F2 | ||
| 2,070m | 20℃
| 18℃
+1cm
| 1℃
+8cm
| 12℃
| 18℃
| 20℃
 | 21℃
|
| Snow Line | varying 2,669m | 2,070m | |||||
| Max Town | 20℃ | 18℃ | 1℃ | 12℃ | 18℃ | 20℃ | 21℃ |
| Min Town | 6℃ | 0℃ | -2℃ | -2℃ | 4℃ | 7℃ | 8℃ |
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 20℃
Min 6℃
Valley temperatures from an overnight low of 6℃ to daytime highs around 20℃
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Sun
04
Snow unlikely
Clear sky early, then cloudy later.
Max 18℃
Min 0℃
Valley temperatures from an overnight low of 0℃ to daytime highs around 18℃
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Mon
05
1cm to 3cm New Snow
Cloudy early, then light snow later.
Snow Line from 2,669m to resort level.
Max 1℃
Min -2℃
Valley temperatures from an overnight low of -2℃ to daytime highs around 1℃
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Tue
06
6cm to 8cm New Snow
Heavy snow showers.
Snow falling to resort level.
Max 12℃
Min -2℃
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -2℃ and rising to 12℃
Temperature at BaseTemp at Base
Wed
07
Snow unlikely
Fog early, then clear sky later.
Max 18℃
Min 4℃
Valley temperatures from an overnight low of 4℃ to daytime highs around 18℃
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Thu
08
Snow unlikely
Clear sky early, then cloudy later.
Max 20℃
Min 7℃
Valley temperatures from an overnight low of 7℃ to daytime highs around 20℃
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Fri
09
Snow unlikely
Rain showers first, clear spells then fair, cloudy later.
Max 21℃
Min 8℃
Valley temperatures from an overnight low of 8℃ to daytime highs around 21℃
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Sat
10
Snow unlikely
Cloudy, clear spells, 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 12:37 NZST, next update expected imminently.
Snow Forecast near Big Sky
| Snow Report and Forecast | 48 Hr | Sun | Mon | Tue | Wed | Thu | Fri | Sat | 7 Day |
|---|---|---|---|---|---|---|---|---|---|
| Moonlight Basin | 7cm | 7cm |
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.