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 26 March.
Updated 25 March 2025 21:37 PDT.
| Next Snow Expected | 28 March |
|---|---|
| Next Snow Amount | 1in |
| Next 48 Hours | 1in |
| Next 7 Days | 8in |
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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 51°F
Min 39°F
Valley temperatures from an overnight low of 39°F to daytime highs around 51°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Wed
26
Snow unlikely
Clear sky.
Mammoth Mountain has 1in 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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| Wed 26 | Thu 27 | Fri 28 | Sat 29 | Sun 30 | Mon 31 | Tue 01 | |
|---|---|---|---|---|---|---|---|
| Wind | SW F3 | SW F5 | SW F3 | SW F3 | S F2 | SW F3 | SW F3 |
| 11,056ft | 38°F
| 32°F
 | 33°F
 +1in
| 30°F
+1in
| 28°F
+1in
| 29°F
| 27°F
 +1in
|
| SW F3 | SW F5 | SW F3 | SW F3 | SE F2 | SW F3 | SW F3 | |
| 9,465ft | 44°F
| 38°F
| 39°F
+1in
| 35°F
+1in
| 36°F
| 37°F
| 35°F
+1in
|
| SW F3 | SW F5 | SW F3 | SW F2 | SW F2 | |||
| 7,874ft | 51°F
| 45°F
| 42°F
 | 38°F
| 40°F
| 41°F
| 35°F
|
| Snow Line | 7,874ft | varying 8,888ft | varying 8,724ft | varying 8,461ft | varying 9,052ft | ||
| Max Town | 51°F | 45°F | 42°F | 38°F | 40°F | 41°F | 35°F |
| Min Town | 39°F | 33°F | 30°F | 22°F | 25°F | 24°F | 31°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 51°F
Min 39°F
Valley temperatures from an overnight low of 39°F to daytime highs around 51°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Wed
26
Snow unlikely
Clear sky.
Max 45°F
Min 33°F
Valley temperatures from an overnight low of 33°F to daytime highs around 45°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Thu
27
Snow unlikely
Cloudy early, then clear sky later.
Max 42°F
Min 30°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 30°F and rising to 42°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Fri
28
up to 1in New Snow
Cloudy first, snow showers then light snow showers, cloudy later.
Snow falling to resort level.
Max 38°F
Min 22°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 22°F and rising to 38°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Sat
29
up to 1in New Snow
Cloudy first, light snow showers then snow showers, cloudy later.
Snow Line from 8,888ft to resort level.
Max 40°F
Min 25°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 25°F and rising to 40°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Sun
30
up to 1in New Snow
Clear sky, cloudy, clear spells later.
Snow Line from 8,724ft to 8,166ft, with rain below.
Max 41°F
Min 24°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to 24°F and rising to 41°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Mon
31
New Snow
Light snow at altitude early, then cloudy later.
Snow Line from 8,461ft to 8,100ft, with rain below.
Max 35°F
Min 31°F
Valley temperatures from an overnight low of 31°F to daytime highs around 35°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Tue
01
up to 1in New Snow
Cloudy first, light snow at altitude then light snow, clear spells later.
Snow Line from 9,052ft to resort level.
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 21:37 PDT, next update expected imminently.
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.