Mammoth Lakes, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mammoth Lakes, a town in Mono County, California.
This Afternoon
46°F
Chance Light Snow
A chance of snow after 4pm. Mostly sunny. High near 46, with temperatures falling to around 35 in the afternoon. Southwest wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. New snow accumulation of less than half an inch possible.
7-day forecast for Mammoth Lakes
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 46°F | Chance Light Snow | 15 mph SW | 38% |
| Tonight | 25°F | Chance Light Snow then Partly Cloudy | 0 to 15 mph SW | 38% |
| Wednesday | 49°F | Sunny | 0 mph | 0% |
| Wednesday Night | 31°F | Partly Cloudy | 0 mph | 0% |
| Thursday | 51°F | Sunny | 0 mph | 0% |
| Thursday Night | 32°F | Clear | 0 mph | 0% |
| Friday | 52°F | Sunny | 0 to 5 mph NE | 0% |
| Friday Night | 35°F | Clear | 0 to 5 mph NE | 0% |
| Saturday | 58°F | Sunny | 0 mph | 0% |
| Saturday Night | 37°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Sunday | 58°F | Sunny | 0 to 5 mph SW | 0% |
| Sunday Night | 37°F | Partly Cloudy | 0 to 10 mph SW | 0% |
| Monday | 54°F | Mostly Sunny | 5 to 10 mph SW | 1% |
| Monday Night | 36°F | Partly Cloudy | 0 to 5 mph SW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Mammoth Lakes (37.624, -118.988). Updated through the day.
Growing snapshot for Mammoth Lakes
Last spring frost
Jun 10
First fall frost
Sep 17
Growing season
98 days
Hardiness zone
6a
More local growing data for Mammoth Lakes: nearby ZIP 93546 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Aspen Springs
Benton
Bishop
Bridgeport
Chalfant
Coleville
Crowley Lake
Dixon Lane-MeadowCreek
June Lake
Lee Vining
McGee Creek
Mesa
Mono City
Paradise
Round Valley
Sunny Slopes
Swall Meadows
Topaz
Twin Lakes
Virginia Lakes
Walker
West Bishop
Wilkerson
Climate data from the nearest NOAA station, Mammoth Lakes Rs, Ca (9.5 mi from Mammoth Lakes). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.