Mammoth Mountain & Eastern Sierra Weather Forecast

Mammoth Weather Update for Saturday, July 17th, 2021 @ 8:12 AM

Synopsis: After several heat waves over the last few weeks temperatures are now average for this time of year.

Highs look to stay seasonable with afternoon SW winds most days over the next week.

Moisture will increase on Sunday with a 20% chance of T Storms in the high country.

By Monday we have the best chance for Thunder Storms with heavy rain and hail possible. After Monday T Storm’s chances will decrease and be in the 10-20% range the rest of next week.

The Mammoth Lakes and all areas of the Eastern Sierra will continue to have areas of light smoke and haze from all the fire activity around California right now.

Snowman

Mammoth Mountain Ski Patrol Current Conditions 7-17-2021

Mammoth Ski Patrol Weather Station
Mammoth Ski Patrol Weather Station
BishopWeather.com
BishopWeather.com

Cal Trans Window-cast

Mammmoth Mountain from the junction of Highway 203 and 395 Highway 203 into Mammoth Lakes

Current Eastern Sierra Air Quality

Window-cast from the Mammoth Lakes Airport WebcamWindow-cast from the Mammoth Lakes Airport Webcam

Live Radar View of Central CaliforniaLive Radar View of Central California

GOES Satellite View of California and the West CoastNOAA Goes 17 Satellite View

Forecast for the Mammoth Lakes Basin & Main Lodge @ 8900 feetNWS Main Lodge

Forecast for Mammoth Lakes @ 8000 FeetNWS Mammoth Lakes

Forecast for Bishop @ 4200 feetNWS Bishop

HRRR High-Temperature Forecast

HRRR 18 Hour Precipitation Forecast

HRRR Current Dew Point

HRRR Current Humidity Levels

Pricialtable Water

ECMWF EPS Accumulated Preciptation over 8 days

ECMWF EPS Ensemble going out 10 days / 240 hour

Temperature Anomaly Outlook

Precipitation Anomaly Outlook

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Forecasting Weather Images

NOAA GOES 17 Full Pacific Satellite View
NOAA GOES 17 Full Pacific Satellite View
Goes 17 North Pacific Satellite View
Goes 17 North Pacific Satellite View
Goes 17 West Coast Satellite View
Goes 17 West Coast Satellite View
24 QPF Forecast for the USA
24 QPF Forecast for the USA
Day 2 QPF Chart for the USA
Day 2 QPF Chart for the USA
Day 3 QPF Chart for the USA
Day 3 QPF Chart for the USA
Day 4-5 QPF Chart for the USA
Day 4-5 QPF Chart for the USA
Day 6-7 QPF Chart for the USA
Day 6-7 QPF Chart for the USA

Mammoth Mountain 6-10 Day Weather Outlook

Mammoth Mountain 6-10 Day Precipitation Outlook

Mammoth Mountain 10-14 Day Temperature Outlook

Mammoth Mountain 10-14 Day Precipitation Outlook

PNA Forecast Chart
PNA Forecast Chart
Arctic Oscillation Forecast
Arctic Oscillation Forecast

The MOJO Outlook

MOJO - All Model Mean Forecast
MOJO – All Model Mean Forecast
MOJO - NCEP Global Ensemble Forecast System (NCPE)
MOJO – NCEP Global Ensemble Forecast System (NCPE)
MOJO - NCEP Global Bias-Corrected Ensemble Forecast System (NCPB)
MOJO – NCEP Global Bias-Corrected Ensemble Forecast System (NCPB)
MOJO - Climate Forecast System (NCFS)
MOJO – Climate Forecast System (NCFS)
MOJO - ECMWF Forecasts System (ECMF)
MOJO – ECMWF Forecasts System (ECMF)
MOJO - CMET Canadian Forecast
MOJO – CMET Canadian Forecast

Mammoth Mountain and Eastern Sierra Weather Posts

Elementor #102994

Steve Taylor the Mammoth Snowman November 12, 2025 1:15 pm

11-12-25 @ 1 PM – Taking a look at the latest data from the 12z runs, the trend continues: the deep Pacific low is dropping

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11-3-2025 Mammoth Weather Update

Steve Taylor the Mammoth Snowman November 3, 2025 11:43 am

Mammoth Mountain Weather Forecast & Discussion November 3rd, 2025, at 10:30 AM …HIGH WIND WATCH IN EFFECT FROM LATE TUESDAY NIGHT THROUGH LATE WEDNESDAY NIGHT…

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11-2-25 – Mammoth Weather Update

Steve Taylor the Mammoth Snowman November 3, 2025 9:47 am

Mammoth Mountain Weather Forecast & Discussion November 2nd, 2025, at 9 AM – Look for clear skies through Tuesday, with a cooling trend starting on

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10-28-2025 Mammoth Weather Update

Steve Taylor the Mammoth Snowman October 29, 2025 11:00 am

Mammoth Mountain Weather Forecast & Discussion Tuesday, October 28th, 2025 @ 11 AM – Gorgeous fall days continue as ridging and higher heights have taken over the

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10-7-26 – Mammoth Weather Update

Steve Taylor the Mammoth Snowman October 8, 2025 3:54 pm

Mammoth Mountain Weather Forecast Daily zone-based weather updates for Mammoth Mountain,Mammoth Lakes, Crowley, and Bishop. Mammoth Mountain Weather Discussion  Tuesday, October 7, 2025 @ 4

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9-23-25 Mammoth Weather Discussion

Steve Taylor the Mammoth Snowman September 23, 2025 10:41 am

Mammoth Mountain Weather Forecast & Discussion “Daily zone-based weather updates for Mammoth Mountain, Mammoth Lakes, Crowley, and Bishop – plus Snowman’s forecast insights and ECMWF

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ecmwf-deterministic-nepac-z500_anom-

9-23-25 Mammoth Weather Forecast

Steve Taylor the Mammoth Snowman September 23, 2025 10:39 am

Mammoth Mountain Weather Forecast & Discussion “Daily zone-based weather updates for Mammoth Mountain, Mammoth Lakes, Crowley, and Bishop – plus Snowman’s forecast insights and ECMWF

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qpf-ecmwf-deterministic-sierras-total_precip_inch-

9-21-25 – Mammoth Weather Forecast

Steve Taylor the Mammoth Snowman September 22, 2025 10:41 am

Mammoth Mountain Weather Forecast & Discussion “Daily zone-based weather updates for Mammoth Mountain, Mammoth Lakes, Crowley, and Bishop – plus Snowman’s forecast insights and ECMWF

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The Cut Off Low on the ECMWF 06Z 9-21-25

9-21-25 – Mammoth Weather Discussion

Steve Taylor the Mammoth Snowman September 21, 2025 10:36 am

Mammoth Mountain Weather Forecast & Discussion “Daily zone-based weather updates for Mammoth Mountain, Mammoth Lakes, Crowley, and Bishop – plus Snowman’s forecast insights and ECMWF

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ecmwf-ensemble-avg-nepac-z500_anom-

9-19-25 – Mammoth Weather Discussion

Steve Taylor the Mammoth Snowman September 21, 2025 8:33 am

Pray for Snow! Mammoth Mountain Weather Forecast & Discussion “Daily zone-based weather updates for Mammoth Mountain, Mammoth Lakes, Crowley, and Bishop – plus Snowman’s forecast

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nam-nest-sierras-instant_ptype-

9-19-25 – Mammoth Weather Forecast

Steve Taylor the Mammoth Snowman September 19, 2025 8:08 am

Pray for Snow! Mammoth Mountain Weather Forecast & Discussion “Daily zone-based weather updates for Mammoth Mountain, Mammoth Lakes, Crowley, and Bishop – plus Snowman’s forecast

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9-12-25-ecmwf-ensemble-avg-nepac-z500_anom-

9-16-25 – Mammoth Weather Discussion

Steve Taylor the Mammoth Snowman September 18, 2025 8:34 am

Pray for Snow! Mammoth Mountain Weather Forecast & Discussion “Daily zone-based weather updates for Mammoth Mountain, Mammoth Lakes, Crowley, and Bishop – plus Snowman’s forecast

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Skid Marks - Looking out towards the tail and the Mammoth Crest beyond.

Mammoth Friday Morning Resort Report

Steve Taylor the Mammoth Snowman August 8, 2025 1:58 pm

……………………………………… Happy Summer Days under Clear Skies…Stage I Fire Restrictions… Bike Park is Open Off The Top with the Park Shuttle and Discovery Chair are

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ecmwf-ensemble-avg-nepac-z50 06Z 8-8-25

Mammoth Weather Update from the Snowman

Steve Taylor the Mammoth Snowman August 8, 2025 1:55 pm

Mammoth Mountain Weather Forecast & Discussion – 93546​ “Daily zone-based weather updates for Mammoth Mountain, Main Lodge, Summit, Mammoth Lakes, Crowley, and Bishop – plus

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6-5-2025 - Photo from Jon G.

Photos June 2025

Steve Taylor the Mammoth Snowman June 19, 2025 2:09 pm

Mammoth Mountain Photos – Late May – June 15th 2025 from Jon G. 6-17-2025 – The final send off of Winter 2025 6-14-2025 – Photo

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Spring Fun on Mammoth Mountain

April – May Photos

Steve Taylor the Mammoth Snowman May 19, 2025 2:19 pm

Mammoth Mountain Photos – April into May 4-29-2025 – Photo: Mackook 4-28-25 – Freshies in Spring 2-23-25 – Pusing Snow for the Super Park Build

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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 MammothSnowman.com 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. 

Click Here to Learn More About the People Who Make MammothSnowman.com a Reality