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 29 April.
Updated 29 April 2025 17:36 BST.
| Next Snow Expected | 30 April |
|---|---|
| Next Snow Amount | 2cm 1in |
| Next 48 Hours | 4cm 1in |
| Next 7 Days | 10cm 4in |
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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 13℃ 56°F
Min 0℃ 32°F
Valley temperatures from an overnight low of 0℃ 32°F to daytime highs around 13℃ 56°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Tue
29
Snow unlikely
Clear sky early, then cloudy later.
Big Sky has 4cm 1in 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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| Tue 29 | Wed 30 | Thu 01 | Fri 02 | Sat 03 | Sun 04 | Mon 05 | |
|---|---|---|---|---|---|---|---|
| Wind | W F4 | NW F3 | |||||
| 3,410m 11,188ft | 2℃ 36°F
| -3℃ 27°F
 +4cm +1in
| 2℃ 36°F
| 7℃ 44°F
| 10℃ 49°F
| 8℃ 47°F
 | 2℃ 36°F
 +3cm +1in
|
| NW F3 | NW F4 | SW F2 | |||||
| 2,740m 8,990ft | 6℃ 43°F
| 1℃ 33°F
 +2cm +1in
| 7℃ 44°F
| 11℃ 52°F
| 14℃ 57°F
| 13℃ 54°F
| 7℃ 44°F
|
| W F2 | NW F2 | SE F2 | S F2 | ||||
| 2,070m 6,791ft | 13℃ 56°F
| 6℃ 44°F
| 12℃ 53°F
| 17℃ 62°F
| 19℃ 66°F
| 18℃ 65°F
| 12℃ 54°F
 |
| Snow Line | varying 2,779m 9,117ft | varying 3,249m 10,659ft | |||||
| Max Town | 13℃ 56°F | 6℃ 44°F | 12℃ 53°F | 17℃ 62°F | 19℃ 66°F | 18℃ 65°F | 12℃ 54°F |
| Min Town | 0℃ 32°F | 1℃ 33°F | 0℃ 32°F | 3℃ 38°F | 6℃ 42°F | 7℃ 45°F | 4℃ 40°F |
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 13℃ 56°F
Min 0℃ 32°F
Valley temperatures from an overnight low of 0℃ 32°F to daytime highs around 13℃ 56°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Tue
29
Snow unlikely
Clear sky early, then cloudy later.
Max 6℃ 44°F
Min 1℃ 33°F
Valley temperatures from an overnight low of 1℃ 33°F to daytime highs around 6℃ 44°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Wed
30
up to 4cm up to 1in New Snow
Rain showers early, then cloudy later.
Snow Line from 2,779m 9,117ft to 2,589m 8,494ft , with rain below.
Max 12℃ 53°F
Min 0℃ 32°F
Valley temperatures from an overnight low of 0℃ 32°F to daytime highs around 12℃ 53°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Thu
01
Snow unlikely
Clear sky, fair, cloudy later.
Max 17℃ 62°F
Min 3℃ 38°F
Valley temperatures from an overnight low of 3℃ 38°F to daytime highs around 17℃ 62°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Fri
02
Snow unlikely
Clear sky, cloudy, clear sky later.
Max 19℃ 66°F
Min 6℃ 42°F
Valley temperatures from an overnight low of 6℃ 42°F to daytime highs around 19℃ 66°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Sat
03
Snow unlikely
Clear sky.
Max 18℃ 65°F
Min 7℃ 45°F
Valley temperatures from an overnight low of 7℃ 45°F to daytime highs around 18℃ 65°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Sun
04
Snow unlikely
Clear sky first, clear spells then cloudy, light drizzle later.
Max 12℃ 54°F
Min 4℃ 40°F
Valley temperatures from an overnight low of 4℃ 40°F to daytime highs around 12℃ 54°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Mon
05
up to 3cm up to 1in New Snow
Drizzle, rain showers, light drizzle later.
Snow Line from 3,249m 10,659ft to 2,649m 8,691ft , with rain below.
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 17:36 BST, next update expected 20:00 BST.
Snow Forecast near Big Sky
| Snow Report and Forecast | 48 Hr | Tue | Wed | Thu | Fri | Sat | Sun | Mon | 7 Day |
|---|---|---|---|---|---|---|---|---|---|
| Moonlight Basin | 4cm 1in | 5cm 2in |
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.