Mammoth Mountain Snow Report and Forecast
Updated 11 November 2026 22:54 PST
Snow Forecast for Mammoth Mountain
Snow and Weather from 12 November.
For Forecast detail, see below.
There is a lot of snow in the long-range forecast (8 to 16 days from today)!
J2Ski - Sign In for a long-range snow forecast, with more weather detail.
Mammoth Mountain Snow Forecast Highlights
When will there be fresh snow in Mammoth Mountain?
| Next Snow Expected | 13 November |
|---|---|
| Next Snow Amount | 9in |
| Next 48 Hours | 10in |
| Next 7 Days | 13in |
Forecast for today in Mammoth Mountain
Max 52°F
Min 31°F
Valley temperatures from an overnight low of 31°F to daytime highs around 52°F
Freeze-thaw from mid-mountain up.
Temperature at BaseTemp at Base
Thu
12
Snow unlikely
Clear sky early, then cloudy later.
Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.
Powder Alert!
Powder Alarm issued 11 November 2026 22:55 PST
Powder Possible :- 10in of Fresh Snow is forecast for Mammoth Mountain over the next 2 days.
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Mammoth Mountain 7-Day Snow Forecast Overview
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| Thu 12 | Fri 13 | Sat 14 | Sun 15 | Mon 16 | Tue 17 | Wed 18 | |
|---|---|---|---|---|---|---|---|
| Wind | SW F2 | SW F4 | SW F2 | SW F2 | |||
| 11,056ft | 41°F
| 30°F
 +9in
| 25°F
 +1in
| 27°F
| 26°F
| 24°F
+1in
| 23°F
+1in
|
| SW F2 | SW F4 | SW F2 | SW F2 | ||||
| 9,465ft | 46°F
| 36°F
+9in
| 31°F
+1in
| 33°F
| 31°F
| 29°F
+1in
| 28°F
+1in
|
| SW F4 | SW F2 | SW F2 | |||||
| 7,874ft | 52°F
| 44°F
 +4in
| 36°F
+1in
| 38°F
| 37°F
| 35°F
 +1in
| 34°F
+1in
|
| Snow Line | varying 8,747ft | 7,874ft | varying 8,166ft | varying 8,363ft | |||
| Max Town | 52°F | 44°F | 36°F | 38°F | 37°F | 35°F | 34°F |
| Min Town | 31°F | 31°F | 17°F | 19°F | 20°F | 26°F | 15°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.
United States Accommodation (Apartments, Chalets, Hotels) Map
Snow Forecast near Mammoth Mountain
| Ski Area | 48 Hr | 7 Day | Th | Fr | Sa | Su | Mo | Tu | We |
|---|---|---|---|---|---|---|---|---|---|
| June Mountain | 9in | 12in |
How reliable is the snow in Mammoth Mountain?
Mammoth Mountain is known for its excellent snow reliability, with an average snowfall of over 400 inches annually. For the latest snow conditions and depth information, be sure to check J2Ski.
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.