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 29 April.
Updated 29 April 2025 15:35 BST.
| Next Snow Expected | 3 May |
|---|---|
| Next Snow Amount | 2cm 1in |
| Next 48 Hours | - - |
| Next 7 Days | 6cm 2in |
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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 11℃ 52°F
Min 1℃ 34°F
Valley temperatures from an overnight low of 1℃ 34°F to daytime highs around 11℃ 52°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Tue
29
Snow unlikely
Cloudy early, then clear sky later.
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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| Tue 29 | Wed 30 | Thu 01 | Fri 02 | Sat 03 | Sun 04 | Mon 05 | |
|---|---|---|---|---|---|---|---|
| Wind | E F3 | SW F2 | E F2 | SW F3 | S F2 | ||
| 3,370m 11,056ft | 2℃ 36°F
| 3℃ 38°F
 | 2℃ 36°F
 | 6℃ 42°F
| 3℃ 38°F
+3cm +1in
| -2℃ 27°F
 +3cm +1in
| 3℃ 37°F
|
| NE F2 | SW F2 | SE F2 | SW F2 | SW F2 | |||
| 2,885m 9,465ft | 6℃ 42°F
| 7℃ 44°F
| 6℃ 43°F
| 9℃ 48°F
| 5℃ 40°F
 +2cm +1in
| 0℃ 31°F
+3cm +1in
| 4℃ 39°F
|
| SW F3 | E F3 | SE F2 | |||||
| 2,400m 7,874ft | 11℃ 52°F
| 11℃ 51°F
| 10℃ 51°F
| 13℃ 56°F
| 9℃ 48°F
| 4℃ 39°F
 +1cm
| 7℃ 45°F
 |
| Snow Line | varying 3,319m 10,889ft | varying 2,619m 8,593ft | |||||
| Max Town | 11℃ 52°F | 11℃ 51°F | 10℃ 51°F | 13℃ 56°F | 9℃ 48°F | 4℃ 39°F | 7℃ 45°F |
| Min Town | 1℃ 34°F | 3℃ 38°F | 2℃ 35°F | 2℃ 36°F | 1℃ 34°F | -5℃ 24°F | -2℃ 29°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 11℃ 52°F
Min 1℃ 34°F
Valley temperatures from an overnight low of 1℃ 34°F to daytime highs around 11℃ 52°F
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Tue
29
Snow unlikely
Cloudy early, then clear sky later.
Max 11℃ 51°F
Min 3℃ 38°F
Valley temperatures from an overnight low of 3℃ 38°F to daytime highs around 11℃ 51°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Wed
30
Snow unlikely
Clear sky early, then cloudy later.
Max 10℃ 51°F
Min 2℃ 35°F
Valley temperatures from an overnight low of 2℃ 35°F to daytime highs around 10℃ 51°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Thu
01
Snow unlikely
Cloudy early, then light rain showers later.
Max 13℃ 56°F
Min 2℃ 36°F
Valley temperatures from an overnight low of 2℃ 36°F to daytime highs around 13℃ 56°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Fri
02
Snow unlikely
Light drizzle, clear sky, heavy drizzle later.
Max 9℃ 48°F
Min 1℃ 34°F
Valley temperatures from an overnight low of 1℃ 34°F to daytime highs around 9℃ 48°F
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Sat
03
up to 3cm up to 1in New Snow
Rain showers, light drizzle, clear spells later.
Snow Line from 3,319m 10,889ft to 2,659m 8,724ft , with rain below.
Max 4℃ 39°F
Min -5℃ 24°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -5℃ 24°F and rising to 4℃ 39°F
Temperature at BaseTemp at Base
Snowfall per hour
Snow Line
Sun
04
1cm to 3cm up to 1in New Snow
Light snow showers, cloudy, light snow later.
Snow Line from 2,619m 8,593ft to resort level.
Max 7℃ 45°F
Min -2℃ 29°F
Freeze-thaw (spring snow) conditions, with valley temperatures cooling to -2℃ 29°F and rising to 7℃ 45°F
Temperature at BaseTemp at Base
Mon
05
Snow unlikely
Fog, clear spells, cloudy later.
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 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.
Mammoth Mountain Snow Forecast updated at 15:35 BST, next update expected 18:00 BST.
Snow Forecast near Mammoth Mountain
| Snow Report and Forecast | 48 Hr | Tue | Wed | Thu | Fri | Sat | Sun | Mon | 7 Day |
|---|---|---|---|---|---|---|---|---|---|
| June Mountain | 1cm - | 4cm 1in |
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.