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Mammoth Mountain 7-Day Snow Forecast - 9th September 2026

Mammoth Mountain Snow Forecast - 7 day

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Updated 08 September 2026 22:46 PDT

7-Day Snow Forecast for Mammoth Mountain

1-week from 9 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 (9,465ft)
Next Snow?
There is no snow currently in the forecast for Mammoth Mountain.

7-Day Snow Outlook for Mammoth Mountain

 
Snowfall

 
Snow Line

Max 78°F
Min 39°F

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 78°F
Min 54°F

Valley temperatures from an overnight low of 54°F to daytime highs around 78°F

Temperature at BaseTemp at Base

Wed
09

Snow unlikely

MixedCloudCloudCloud

Clear spells early, then cloudy later.

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

Max 76°F
Min 55°F

Valley temperatures from an overnight low of 55°F to daytime highs around 76°F

Temperature at BaseTemp at Base

Thu
10

Snow unlikely

MixedClearCloudCloud

Clear spells, clear sky, cloudy later.

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

Max 72°F
Min 49°F

Valley temperatures from an overnight low of 49°F to daytime highs around 72°F

Temperature at BaseTemp at Base

Fri
11

Snow unlikely

CloudCloudClearClear

Cloudy early, then clear sky later.

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

Max 66°F
Min 43°F

Valley temperatures from an overnight low of 43°F to daytime highs around 66°F

Temperature at BaseTemp at Base

Sat
12

Snow unlikely

ClearCloudClearClear

Clear sky, cloudy, clear sky later.

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

Max 70°F
Min 41°F

Valley temperatures from an overnight low of 41°F to daytime highs around 70°F
Freeze-thaw conditions up high.

Temperature at BaseTemp at Base

Sun
13

Snow unlikely

ClearClearClearClear

Clear sky.

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

Max 71°F
Min 39°F

Valley temperatures from an overnight low of 39°F to daytime highs around 71°F
Freeze-thaw conditions up high.

Temperature at BaseTemp at Base

Mon
14

Snow unlikely

ClearClearClearClear

Clear sky.

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

Max 70°F
Min 45°F

Valley temperatures from an overnight low of 45°F to daytime highs around 70°F

Temperature at BaseTemp at Base

Tue
15

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 22:46 PDT, next update expected imminently.

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.