Mammoth Weather Forecast & Discussion

Wednesday, October 5th at 6:49 AM – The calm clear, and warm weather will continue all week and into the upcoming weekend.

Fall colors are peaking in Rock Creek Canyon and up in Bishop Creek Canyon, now is the time to get up and see them before next week’s big cool down takes its toll on the colors in the higher elevations.

Mammoth Mountain Weather Forecast:

Wednesday into Sunday expect sunny skies, resort level highs at 8900 feet (Main Lodge and the Mammoth Lakes Basin) in the low to mid-60s by mid-day, with overnight lows into the low 40s. Over the upcoming weekend highs by Sunday will have come down about 3-5 degrees.

Winds will be out of the SW @ 5-10 MPH with gusts in the 15 MPH range up top and along Sierra ridges.

Mammoth Lakes Weather Forecast

Wednesday into Sunday expect sunny skies, highs will be in the upper 60s to low 70s with overnight lows in the 40s. Winds will be out of the southwest at 5 to 10 mph at times.

If you’re venturing to Bishop expect clear skies with highs in the mid-80s with nighttime lows in the upper 40s to low 50s.

Next Week: Looks like the first inside slider of the season could bring a chance for a dusting of snow to the high country by mid to late week. Read down the page for the full discussion. 

Here are the links to the specific highs, lows, and wind speeds for many of the major recreation points in the Eastern Sierra: Mammoth Mountain Main Lodge, Top of Mammoth Mountain, Mammoth Lakes, June Lake, Crowley Lake, Toms Place, Rock Creek Lake, Bishop & Mill Pond, South Lake. 

Please Note: Fire Restrictions are in place on all National Forest Service and BLM Lands in the Eastern Sierra.

Read down the page for all the longer-range outlooks for snow this November and the winter of 2023. If you have questions about the weather or weather-related chat use our Weather forum.

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Mammoth Mountain 10 Day Weather Outlook & Long Range Discussion

10-5-22 @ 8:11 AM – The 10-Day Mammoth Weather Story:

Going to be ridge city through the weekend with above-average highs on Mammoth Mountain and around the Eastern Sierra.

By next Monday a cut off low well to our south will pump enough moisture our way that Mammoth Mountain and the Eastern Sierra high country could see some cloud build-ups into Tuesday. There is even a slight chance of a rain shower.

After an inside slider type low will drop south into the great basin and then merges with the cut-off low to the south. In the process, there could possibly be a dusting of snow sometime later next week.

Confidence in the track of the low and what moisture it has is very low right now. That’s just too far out this early in the season.  

By the end of the 10-day period, that would be 2 weekends out Mammoth looks to have about average highs and lows with clear skies and dry conditions.

Snowman

 

Here is the EPS Ensemble Model going out 10 days.

14-km EPS Global North America 500 hPa Height Anom
14-km EPS Global North America 500 hPa Height Anom

EPS – 24 Hour Precipitation

14-km EPS USA California 24-h Precipitation

EPS – Temperature Anomaly Ensemble Mean

14-km EPS Global United States 2-m Temperature Anom

Long Range Snowfall & Snowmaking Outlook for mid-October into early November

Longer Range models are still showing some snowfall at the end of October and into November now. This would match up with the newest runs of the EPS Seasonal November Forecast that were just posted down the page. Now it’s the waiting game… Snowman

November into March Mammoth Weather Trends

10-5-2022 @ 11 AM – The new run of the EPS Seasonal is out and it continues to show the trend of an average to above-average winter for snowfall. Each run has been getting a bit wetter and this month’s run is the best looking yet.

Of course, now it has to pan out over the next 6 months and this data is no guarantee Mammoth Mountain will get dumped on. Last year at this time the only wet month the seasonal EPS had on this date was December and the rest showed red and dark brown drought colors.

So good vibes moving forward as we start the snow and cold air watch now.

Snowman

ENSO - La Nina & El Nino

eastern_sierra_precip_conditions5-3-22-DWP

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 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

Mammoth Mountain Weather Forecast and Long Range Outlook

Today’s Mammoth Weather Forecast & Discussion

Wednesday, October 5th at 6:49 AM – The calm clear, and warm weather will continue all week. Looks like the first inside slider of the season could be on the way for next week. Weather model riders are going nuts about the GFS, don’t buy into it at this time as the ensembles are not in agreement. …I am back in the office this morning and I will update this entire weather page over the next hour. Snowman

Thursday, September 29th, 2022 @ 3:13 PM – There is some perfect Fall weather on tap for viewing the Fall Colors this weekend. The fall colors are at 50-75% or greater at the 9000-foot level at this time.

Looks like the weather will be mostly under the control of a ridge of high pressure over the next 7-10 days. So you can expect dry and warm days with cool overnight lows and light winds.

As of now, the Air Quality is great but of course, that can change at any time.

This next week is looking like a great time to be in the Eastern Sierra, get up here if you can and enjoy these tranquil warm early Fall days.

Mammoth Mountain Weather Forecast:

Friday through Sunday expect sunny skies with resort level highs at 8900 feet (Main Lodge and the Mammoth Lakes Basin) in the low to mid-60s by mid-day, with overnight lows into the low 40s.

Winds will be out of the SW @ 5-10 MPH with gusts in the 15 MPH range.

Mammoth Lakes Weather Forecast

Friday through Sunday expect sunny skies, highs will be in the upper 60s to low 70s with overnight lows in the low 40s. Winds will be out of the southwest at 5 to 10 mph at times.

If you’re venturing to Bishop expect clear skies with highs in the mid-80s with nighttime lows in the upper 40s to low 50s.

Next Week: More of the same perfect Fall Weather with highs in the high country in the low 60s with nighttime lows in the 40s along with light SW winds.

Here are the links to the specific highs, lows, and wind speeds for many of the major recreation points in the Eastern Sierra: Mammoth Mountain Main Lodge, Top of Mammoth Mountain, Mammoth Lakes, June Lake, Crowley Lake, Toms Place, Rock Creek Lake, Bishop & Mill Pond, South Lake. 

Please Note: Fire Restrictions are in place on all National Forest Service and BLM Lands in the Eastern Sierra.

Current Satellite View

North Pacific Satelite View
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Local Radar
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Mammoth Mountain Webcams

 

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Black Tie 20% off Winter Rentals

Footloose Sports Bike Shop is Open

Fast Ski Sports Ski Tuning

Cheapest Gas on the 395 at the Fort