Mammoth Mountain & Eastern Sierra Weather Forecast

Mammoth Mountain & Eastern Sierra Weather Forecast

Mammoth Mountain & Eastern Sierra Recreational Weather Forecast

Thursday, September 30th, 2021 @ 6:24 PM

Good morning everyone, checking the window cast we have clear blue skies. So nice to have this clear air in the air, time to get out for a nice long hike, walk, or maybe a bike ride.

Taking a look at local conditions the last couple of days. Yesterday at the top of Mammoth Mountain there was a high of 39, the low this morning was 31. The peak wind gust on Wednesday was 45 MPH out of the ENE. 

In Mammoth Lakes, the temperature peaked at 59 degrees on Wednesday with a low of 29 degrees this morning. There was a peak wind gust Wednesday of 10 MPH out of the NW.

Down in Bishop on Wednesday, there was a temperature of 77 degrees with a low of 39 degrees this morning.  There was a peak wind gust of 5 MPH out of the WSW yesterday.

Temperatures: For Mammoth Mountain, at the Main Lodge highs will be in the upper 50s today and then low into Sunday. Nighttime lows will be in the upper 30s to low 40s.

Mammoth Lakes will have highs in the mid to upper 60s through the weekend with night times lows in the upper 30s to low 40s. Bishop and Round Valleys look for highs in the low 80s with nighttime lows in the mid-40s right thru the weekend.

Winds: Overall winds will be out of the North East at 5 – 10 MPH through Saturday.

Precipitation: All clear thru next weekend now. The next chance would be the middle of next week for a dusting with more possible right after that. See the weather story and 10-day outlook down the page.

Here are the links to the local NWS Forecasts for Main Lodge & the Mammoth Lakes BasinMammoth LakesJune LakeCrowley Lake, and Bishop.

Fire and Smoke Forecast: Skies look to stay cleared out from most of the haze and smoke over the next several days and possibly longer.

Current Air Quality Image


Mammoth Mountain and Eastern Sierra Weather Posts

Who Are We?

Steve Taylor – Mammoth Snowman Over the last 30+ years, Snowman has spent countless hours studying and learning about Mammoth Mountain Weather and Snow Conditions first hand. He has been skiing around the hill with marked ski poles since March of 1991 so he can measure the fresh snowfall amounts out on the hill. 

Snowman started blogging this information back in 1990 on the old Mammoth BBS system, then the RSN Forums and then on to in 2004 with Video & Photo Blog report. (No YouTube back then). Facebook got added to the fold back in 2008 and then the Facebook Group in 2016. 

Reports, videos, and photos from the website have been featured on both local TV Stations here in Mammoth, along with AP, Fox, ABC, CBS, and NBC News.

Ted Schlaepfer – Mammoth WeatherGuy – The Powder Forecast – Posted Tuesday and Fridays at 5 PM November into Mid May. These forecasts are now responsible for many people getting multiple powder days on Mammoth Mountain over the years.  

Ted’s Bio: Ted has been a full-time Meteorologist (CCM) for the past 25+ years. He has always been fascinated with the weather,” skiing was just a natural extension of my love for snow and rain. I started skiing at age 5,  first discovered Mammoth in 1979 as a youth, and have been a regular visitor since the late ’80s.”.

Here is the link to The WeatherGuys Powder Forecast Page. 

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