Mammoth Mountain Recreational Weather & Travel Forecast

April 18th, 2024 @  9 AM – The area is currently under the influence of high pressure, with a very weak low expected to work its way into and then out of the area on Friday. That weak system will allow temperatures to cool down a bit under pt cloudy skies; a few showers could kick off during the afternoon hours (20-30% chance), with the snow level around 9000 to 10,000 feet.

High pressure will reintensify over the weekend, allowing mid-day temperatures to rise 5-7 degrees by Sunday. Expect sunny skies with light winds. By Sunday, temperatures look to come up into the upper 50s around Main Lodge, with mid-to-upper 60s in Mammoth Lakes and mid-to-upper 80s in Bishop.

The ridge of pressure is then forecasted to move off to the east as the next low quickly starts to move toward southern and central California. That next low will slowly lower tempratures during the middle to the latter half of next week. There will also be a chance of snow or snow showers at some point as the low moves in.

With the possible snow being over a week out, it would be wise not to trust in any forecasted snowfall amounts at this point. Spring is a transition season, and the weather forecast can change quickly beyond day 5.

NWS Mammoth Mountain Main Lodge Forecast
NWS Mammoth Mountain Main Lodge Forecast
NWS Bihsop Forecast
NWS Bishop Forecast

No snow in the forecast for the next week, expect for the few flakes that could fall Friday. Beyond day 7 there is some snow showing up on the ECM ENS as shown below. Snowfall amounts this far are not to be trusted yet, but at least there is something showing up if you looking for a taste of winter once again. 

The 500 MB Anomaly gif shows you the story told above on the 10 day weather forecast. It’s nice to see a good warm up, but even nicer to see another cool down and possibly more snow and rain for the area.

This will be the first extended warming trend of the year, but as you can see in the gif below cooler temperatures return to the high country and eventually in Bishop by the middle of next week.

The Wind gif below does a decent job of showing the wind forecasted for Mammoth Mountain out to about day 5.

El Nino – La Nina – Neutral Watch

Current Weather and Information Posts

Author – Steve Taylor – The 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 reports. (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 and Bishop, along with KTLA, AP, Fox, ABC, CBS, and NBC News.

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