Mammoth Mountain Snow Forecast - 7 day
Updated 19 May 2026 19:48 CDT
7-Day Snow Forecast for Mammoth Mountain
1-week from 20 May.
For Forecast detail, see below.
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Mammoth Mountain 7-Day Snow Forecast Highlights
When will there be fresh snow in Mammoth Mountain?
| Next Snow Expected | 27 May |
|---|---|
| Next Snow Amount | 1cm |
| Next 48 Hours | - |
| Next 7 Days | 1cm |
7-Day Snow Outlook for Mammoth Mountain
Snowfall
Snow Line
Max 20℃
Min -1℃
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 15℃
Min 3℃
Valley temperatures from an overnight low of 3℃ to daytime highs around 15℃
Freeze-thaw (spring snow) conditions up high.
Temperature at BaseTemp at Base
Wed
20
Snow unlikely
Clear sky early, then cloudy later.
Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.
Max 20℃
Min 5℃
Valley temperatures from an overnight low of 5℃ to daytime highs around 20℃
Temperature at BaseTemp at Base
Thu
21
Snow unlikely
Cloudy early, then clear sky later.
Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.
Max 19℃
Min 7℃
Valley temperatures from an overnight low of 7℃ to daytime highs around 19℃
Temperature at BaseTemp at Base
Fri
22
Snow unlikely
Cloudy early, then clear sky later.
Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.
Max 19℃
Min 7℃
Valley temperatures from an overnight low of 7℃ to daytime highs around 19℃
Temperature at BaseTemp at Base
Sat
23
Snow unlikely
Clear sky.
Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.
Max 20℃
Min 7℃
Valley temperatures from an overnight low of 7℃ to daytime highs around 20℃
Temperature at BaseTemp at Base
Sun
24
Snow unlikely
Clear sky first, cloudy then clear spells, cloudy later.
Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.
Max 19℃
Min 6℃
Valley temperatures from an overnight low of 6℃ to daytime highs around 19℃
Temperature at BaseTemp at Base
Mon
25
Snow unlikely
Cloudy early, then clear sky later.
Forecast times for Mammoth Mountain are in Los Angeles (US/Pacific) time zone.
Max 10℃
Min -1℃
Valley temperatures from an overnight low of -1℃ to daytime highs around 10℃
Freeze-thaw (spring snow) from mid-mountain up.
Temperature at BaseTemp at Base
Tue
26
Snow unlikely
Clear sky, cloudy, clear sky later.
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 19:48 CDT, 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.