Mammoth Mountain & Eastern Sierra Recreational Weather Forecast

Sunday, October 10th, 2021 @ 1:03 PM

Weather Summary: Over the next several days the weather will be dominated by a strong cut-off low dropping into the great basin. Inside sliders are typical for this time of year, this one is on the strong side and will be extra cold and offer up a bit of snow.

This pattern will drop temperatures in the Eastern Sierra that will be more winter than early Fall-like. Along with the cold, there could be 1-3 inches of fresh powdery snow that falls above the 8500-foot level. Areas below that could see a dusting to an inch of what white stuff. 

The low will take its time moving east and will put us in a cold winter temperature pattern for several days this week. 

If the Mountain wants to make snow it looks like there is a couple of day window to do it. Might be too early for snowmaking, but maybe not. 

Checking the window cast there are clear blue skies today with great air quality.

Taking a look at local conditions the last couple of days. Yesterday at the top of Mammoth Mountain there was a high of 25, the low this morning was 20. The peak wind gust over the last 24 hours was 50 MPH @ 3:45 PM out of the ENE.

The snow study site @9000 feet is showing two inches of snow on the ground with a temperature of 52.

In Mammoth Lakes, the temperature peaked at 47 degrees on Thursday with a low of 27 degrees this morning. Winds in town have been out of the WSW with peak gusts of 11 MPH today.

Precipitation & Snowfall Forecast: Look for 1-3 inches of snowfall above 8000 feet on Monday with a slight chance of rain showers in the lower elevations. *6.5 inches new at the snow study site on Friday.*

Temperatures: Highs will be in the low 30s at the Main Lodge and in the Mammoth Lakes Basin on Monday and Tuesday. Highs warm into the mid to upper 40s by Wednesday and Thursday. With late week into the weekend in the mid-50s.

Mammoth Lakes will be in the upper 30s to low 40s on Monday and Tuesday. With low to mid-50s Wednesday and Thursday and 60s over the weekend.

Bishop will be in the 50s to start the week and then by Wednesday and Thursday high will be in the upper 60s, by the weekend it will be 70s in downtown Bishop.

*You have to love the this temperature Anomaly GIF below. After months of it showing heat and above normal it’s final gone cool. What a blessing, yahoo

Winds: On Monday expect North to North West winds 35-55 MPH in areas of the Eastern Sierra. That includes areas of 395, so travelers beware.

Here are the links to the local NWS Forecasts for Main Lodge & the Mammoth Lakes Basin, Mammoth Lakes, June Lake, Crowley Lake, and Bishop.

Fire and Smoke Forecast: Skies are expected to be clear of smoke and haze until further notice. Get out there and breathe some fresh air.