Mammoth Mountain Snow Report and Forecast
Snow Forecast for Mammoth Mountain
When will there be fresh snow?
This is the Snow Forecast for Mammoth Mountain, United States for 16 days from 16 June.
Updated 15 June 2025 21:38 PDT.
| Next Snow? | |
|---|---|
| There is no snow currently in the forecast for Mammoth Mountain. | |
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For Forecast detail, see below.
For current snow depths and skiing conditions, see our Current Snow Report for Mammoth Mountain.
Forecast for today in Mammoth Mountain
Max 70°F
Min 54°F
Valley temperatures from an overnight low of 54°F to daytime highs around 70°F
Temperature at BaseTemp at Base
Mon
16
Snow unlikely
Clear sky.
Mammoth Mountain has no new snow forecast in the next 48 hours.
Mammoth Mountain Snow Report
| Snow Conditions | - |
|---|
Mammoth Mountain 7-Day Snow Forecast Overview
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| Mon 16 | Tue 17 | Wed 18 | Thu 19 | Fri 20 | Sat 21 | Sun 22 | |
|---|---|---|---|---|---|---|---|
| Wind | SW F4 | SW F4 | SW F3 | SW F3 | SW F3 | SW F3 | |
| 11,056ft | 56°F
| 59°F
| 66°F
| 63°F
| 60°F
| 57°F
| 48°F
|
| SW F4 | SW F4 | SW F2 | SW F3 | SW F3 | SW F3 | SW F3 | |
| 9,465ft | 62°F
| 66°F
| 75°F
| 71°F
| 69°F
| 65°F
| 56°F
|
| SW F4 | SW F4 | SE F2 | SE F2 | SE F2 | S F2 | SW F2 | |
| 7,874ft | 70°F
| 74°F
| 81°F
| 77°F
| 73°F
| 69°F
| 62°F
|
| Snow Line | |||||||
| Max Town | 70°F | 74°F | 81°F | 77°F | 73°F | 69°F | 62°F |
| Min Town | 54°F | 49°F | 51°F | 48°F | 45°F | 41°F | 30°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.
Mammoth Mountain 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 70°F
Min 54°F
Valley temperatures from an overnight low of 54°F to daytime highs around 70°F
Temperature at BaseTemp at Base
Mon
16
Snow unlikely
Clear sky.
Max 74°F
Min 49°F
Valley temperatures from an overnight low of 49°F to daytime highs around 74°F
Temperature at BaseTemp at Base
Tue
17
Snow unlikely
Clear sky.
Max 81°F
Min 51°F
Valley temperatures from an overnight low of 51°F to daytime highs around 81°F
Temperature at BaseTemp at Base
Wed
18
Snow unlikely
Clear sky.
Max 77°F
Min 48°F
Valley temperatures from an overnight low of 48°F to daytime highs around 77°F
Temperature at BaseTemp at Base
Thu
19
Snow unlikely
Clear sky.
Max 73°F
Min 45°F
Valley temperatures from an overnight low of 45°F to daytime highs around 73°F
Temperature at BaseTemp at Base
Fri
20
Snow unlikely
Clear sky.
Max 69°F
Min 41°F
Valley temperatures from an overnight low of 41°F to daytime highs around 69°F
Temperature at BaseTemp at Base
Sat
21
Snow unlikely
Clear sky.
Max 62°F
Min 30°F
Freeze-thaw conditions, with valley temperatures cooling to 30°F and rising to 62°F
Temperature at BaseTemp at Base
Sun
22
Snow unlikely
Clear sky.
No significant snowfall is forecast for this period.
This Snow Forecast for Mammoth Mountain, 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 Mammoth Mountain, on any given trail 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.
Mammoth Mountain Snow Forecast updated at 21:38 PDT, next update expected 00:00 PDT.
Understanding and predicting Snow Conditions in Mammoth Mountain
Here are our tips for making the most of a trip to Mammoth Mountain, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Mammoth Mountain, 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 Mammoth Mountain 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 Mammoth Mountain 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 Mammoth Mountain 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.