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Mammoth Mountain 7-Day Snow Forecast - 29th September 2026

Mammoth Mountain Snow Forecast - 7 day

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GEM
GFS

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Updated 29 September 2026 21:53 AEST

7-Day Snow Forecast for Mammoth Mountain

1-week from 29 September.

For Forecast detail, see below.

Mammoth Mountain 7-Day Snow Forecast Highlights

When will there be fresh snow in Mammoth Mountain?

Mammoth Mountain Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (2,885m)
Next Snow?
There is no snow currently in the forecast for Mammoth Mountain.

7-Day Snow Outlook for Mammoth Mountain

 
Snowfall

 
Snow Line

Max 26℃
Min 3℃

Snow unlikely

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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 17℃
Min 3℃

Valley temperatures from an overnight low of 3℃ to daytime highs around 17℃
Freeze-thaw conditions up high.

Temperature at BaseTemp at Base

Tue
29

Snow unlikely

ClearClearClearClear

Clear sky.

Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.

Max 22℃
Min 8℃

Valley temperatures from an overnight low of 8℃ to daytime highs around 22℃

Temperature at BaseTemp at Base

Wed
30

Snow unlikely

ClearClearClearClear

Clear sky.

Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.

Max 24℃
Min 9℃

Valley temperatures from an overnight low of 9℃ to daytime highs around 24℃

Temperature at BaseTemp at Base

Thu
01

Snow unlikely

ClearClearClearClear

Clear sky.

Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.

Max 24℃
Min 10℃

Valley temperatures from an overnight low of 10℃ to daytime highs around 24℃

Temperature at BaseTemp at Base

Fri
02

Snow unlikely

ClearClearClearClear

Clear sky.

Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.

Max 26℃
Min 10℃

Valley temperatures from an overnight low of 10℃ to daytime highs around 26℃

Temperature at BaseTemp at Base

Sat
03

Snow unlikely

CloudCloudClearCloud

Cloudy, clear sky, cloudy later.

Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.

Max 22℃
Min 10℃

Valley temperatures from an overnight low of 10℃ to daytime highs around 22℃

Temperature at BaseTemp at Base

Sun
04

Snow unlikely

ClearClearClearClear

Clear sky.

Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.

Max 24℃
Min 10℃

Valley temperatures from an overnight low of 10℃ to daytime highs around 24℃

Temperature at BaseTemp at Base

Mon
05

Snow unlikely

ClearClearClearClear

Clear sky.

Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.

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 21:53 AEST, next update expected 00:00 AEST.

Snow Reliability

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.