Mammoth Mountain Weather Forecast & Discusion

12-30-24 @ 11 AM

Weather Summary: Clear blue skies will rule the weather through Thursday. By Friday, a weak system will kick up the winds and bring in a few clouds and a chance of snow showers Friday evening.

Next weekend looks bluebird, with light to moderate winds at times and temperatures in the lower 40s. It should be a perfect weekend for you bluebird lovers. 

If you’re out on the hill today, expect clear skies. Temperatures at the first chair will be in the upper 20s to lower 30s, and mid-day temperatures will be in the upper 30s to lower 40s, with mid-30s over the Top of the Mountain. 

Winds on the Lower Mountain will be West around 5-10 mph. Over the Mid and Upper Mountain from 9500 feet up, winds will be southwest at 10-20 MPH at times. 

On New Year’s Day, Temperatures at the first chair will be in the upper 20s to lower 30s, and mid-day temperatures will be in the upper 30s to lower 40s, with mid-30s over the Top of the Mountain. 

Lower mountain winds will be out of the West around 10 mph, with gusts as high as 20 mph. Over the mid and upper mountain, expect a southwest wind of 20 to 25 mph, with gusts as high as 35-45 mph.

Long-Range Fantasy Outlook

Unfortunately, the Mammoth area is moving into the dreaded January thaw. This one should be around for at least the first 21 days of January before there is a possible change to snowfall again.

The good news is that long-range ensembles show a change in the pattern around the 21st of January, with some snowfall to end the month. Ensemble models also show that possible snowfall will last into mid-February.

Of course, we look at the longer-range data to see weather trends, not specific snowfall amounts. Long-range confidence in any outcome is always going to be lower.

Looking back to last season, things were looking a bit grim weather-wise right now. Then the tide turned, and there was lots of snow from February into early April.

Forever Hopefull for a series of Powder Storms, Steve Taylor – the Mammoth Snowman