Mammoth Mountain

California • United States

Snow Forecast Summary

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Precip Chance
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Weather
Temp °F 51 51 50 49 48 46
Snow Level ft 12,000 12,000 12,000 12,000 11,900 11,700
Wind Speed mph
SW
20
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20
SW
25
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25
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20
Wind Gust mph 35 35 40 40 40 35
Cloud Cover % 0 20 30 40 50 40

Detailed 10-Day Forecast

12-Hr Snowfall High/Low Alerts Snow
Level		 Wind
Speed		 Wind
Gusts		 Cloud
Cover
Wed
9/28
0" Sunny
51°F
11,800ft
SW 20mph
30mph
10%
0" Mostly Clear
44°F
11,400ft
SW 20mph
35mph
30%
Thu
9/29
0" Sunny
52°F
11,400ft
WSW 15mph
25mph
10%
0" Clear
44°F
11,800ft
WSW 5mph
5mph
0%
Fri
9/30
0" Sunny
55°F
11,800ft
W 5mph
5mph
0%
0" Clear
44°F
12,000ft
NW 5mph
5mph
0%
Sat
10/1
0" Sunny
53°F
11,500ft
WSW 10mph
15mph
0%
0" Clear
44°F
11,500ft
SW 5mph
10mph
0%
Sun
10/2
0" Sunny
52°F
11,200ft
SW 10mph
15mph
0%
0" Clear
45°F
11,700ft
ENE 5mph
5mph
10%
Mon
10/3
0" Sunny
54°F
11,700ft
SW 5mph
5mph
20%
0" Clear
45°F
11,900ft
ENE 5mph
5mph
0%
Tue
10/4
0" Sunny
54°F
11,900ft
SW 5mph
5mph
10%
0" Clear
44°F
12,200ft
SW 5mph
5mph
10%
Wed
10/5
0" Mostly Sunny
51°F
12,200ft
SW 5mph
10mph
20%
0" Mostly Clear
42°F
11,700ft
SSW 5mph
5mph
20%
Thu
10/6
0" Mostly Sunny
48°F
11,200ft
SSW 5mph
5mph
30%
0" Mostly Clear
38°F
11,300ft
SE 5mph
5mph
30%
Fri
10/7
0" Sunny
44°F
10,500ft
S 5mph
10mph
10%
0" Clear
37°F
10,900ft
NE 5mph
10mph
20%
Forecast Elev: 9,500ft Base Elev: 7,950ft Summit Elev: 11,050ft Updated: 49 minutes ago

New Snow

Closed
Status

Snowfall History
Sat 24 Sun 25 Mon 26 Tue 27 Wed 28
Resort Reported at Sun Jun 5

Current Weather

51°F
Temperature
20mph
Wind Speed
Mid-Mtn at Wednesday Sep 28 @ 2:00pm PDT

Snowpack

of average for the season
Estimated on Wednesday Sep 28 @ 5:00am PDT
Calculated from 4 SNOTEL sites within 49 miles of Mammoth Mountain at an average elevation of 8772ft. The data is generated by mountain weather stations near Mammoth Mountain and is not compiled from official resort measurements. We use weather stations because they update automatically and provide consistent measurements over many decades.
OpenSnow does not verify this data. Resorts are responsible for any errors. Report a problem
Snow report provided by SnoCountry

Cams

Top Of Sierra
Top Of Sierra
McCoy Station
McCoy Station
Main Lodge
Main Lodge
Village Cam
Village Cam
Unbound
Unbound
Super Pipe
Super Pipe

Daily Snow Forecasts

US and Canada
All eyes on Hurricane Ian, warm but unsettled out West
Updated 8 hours ago Alan Smith
Hurricane Ian is set to make landfall in Western Florida on Wed as a major hurricane. As this storm slowly moves north, it will bring heavy rains & gusty winds to the Southern Appalachians Fri to Mon. The West has been very warm recently, but a slow-moving storm will bring showers, t-storms, & a little bit of high elevation snow to the PNW & Rockies over the next several days.
Western US
Labor Day heat wave, cooling trend late next week
Updated 3 weeks ago Alan Smith
A significant late-season heatwave will persist across the West throughout the holiday weekend before eventually relenting mid to late next week. Daily record highs are likely across much of the West and some areas will break Sept monthly records as well. Smoky conditions have also become more widespread across the Northwest & Northern Rockies. Cooler temps will finally arrive late next week.
Mammoth
End of the Line
Updated 3 months ago Mike Korotkin
This week will feature warming temps through Thursday with a cool down over the weekend with a slight chance for showers on Saturday. Winds will ramp up as well going into the weekend but overall it will be a mellow week weather wise.

Trail Maps

Thumbnail Image Mammoth Mountain - Winter Map
Winter Map

Avalanche Forecast

Avalanche Forecasts are for use by experienced backcountry travelers in uncontrolled sidecountry and backcountry terrain. These forecasts and conditions do not apply to open, in-bounds terrain at ski resorts, which is subject to avalanche control by local resort ski patrol.
Avalanche Danger
No Rating

Watch for signs of unstable snow such as recent avalanches, cracking in the snow, and audible collapsing. Avoid traveling on or under similar slopes.

More Details

The danger rating shown on the map is just one piece of the avalanche forecast. To get the complete forecast, please view the Eastside Region forecast provided by the Eastern Sierra Avalanche Center.

Eastside Region Avalanche Forecast
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Mountain Information

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