Mammoth Mountain Snow Forecast - 7 day
Updated 19 October 2026 12:49 BST
7-Day Snow Forecast for Mammoth Mountain
1-week from 19 October.
For Forecast detail, see below.
There is a useful amount 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 7-Day Snow Forecast Highlights
When will there be fresh snow in Mammoth Mountain?
| Next Snow Expected | 22 October |
|---|---|
| Next Snow Amount | 3cm 1in |
| Next 48 Hours | - - |
| Next 7 Days | 3cm 1in |
7-Day Snow Outlook for Mammoth Mountain
Snowfall
Snow Line
Max 16℃ 61°F
Min -2℃ 27°F
4cm 2in New Snow
Snow Line from 2,729m 8,953ft to resort level ( 2,400m 7,874ft ).
There is a useful amount 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.
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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 12℃ 54°F
Min 3℃ 38°F
Valley temperatures from an overnight low of 3℃ 38°F to daytime highs around 12℃ 54°F
Freeze-thaw conditions up high.
Temperature at BaseTemp at Base
Mon
19
Snow unlikely
Clear sky early, then cloudy later.
Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.
Max 12℃ 53°F
Min 2℃ 36°F
Valley temperatures from an overnight low of 2℃ 36°F to daytime highs around 12℃ 53°F
Freeze-thaw from mid-mountain up.
Temperature at BaseTemp at Base
Tue
20
Snow unlikely
Clear spells, clear sky, cloudy later.
Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.
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 from mid-mountain up.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Wed
21
Snow unlikely
Cloudy first, fair then cloudy, heavy drizzle later.
Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.
Max 6℃ 43°F
Min 1℃ 34°F
Valley temperatures from an overnight low of 1℃ 34°F to daytime highs around 6℃ 43°F
Freeze-thaw from mid-mountain up.
Temperature at BaseTemp at Base
Snowfall
Snow Line
Thu
22
up to 4cm up to 2in New Snow
Light drizzle first, light snow then cloudy, light snow at altitude later.
Snow Line from 2,729m 8,953ft to resort level ( 2,400m 7,874ft ).
Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.
Max 11℃ 51°F
Min -2℃ 28°F
Freeze-thaw conditions, with valley temperatures cooling to -2℃ 28°F and rising to 11℃ 51°F
Temperature at BaseTemp at Base
Fri
23
Snow unlikely
Light snow, cloudy, clear sky later.
Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.
Max 14℃ 58°F
Min -2℃ 27°F
Freeze-thaw conditions, with valley temperatures cooling to -2℃ 27°F and rising to 14℃ 58°F
Temperature at BaseTemp at Base
Sat
24
Snow unlikely
Clear sky.
Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.
Max 16℃ 61°F
Min 1℃ 33°F
Valley temperatures from an overnight low of 1℃ 33°F to daytime highs around 16℃ 61°F
Freeze-thaw from mid-mountain up.
Temperature at BaseTemp at Base
Sun
25
Snow unlikely
Clear sky.
Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.
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 12:49 BST, next update expected imminently.
Snow Forecast near Mammoth Mountain
| Ski Area | 48 Hr | 7 Day | Mo | Tu | We | Th | Fr | Sa | Su |
|---|---|---|---|---|---|---|---|---|---|
| June Mountain | - | 5cm 2in |
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.