Mammoth Lakes, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mammoth Lakes, a town in Mono County, California.
Today
68°F
Sunny then Patchy Smoke
Patchy smoke after 4pm. Sunny, with a high near 68. West wind 0 to 5 mph.
7-day forecast for Mammoth Lakes
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Sunny then Patchy Smoke | 0 to 5 mph W | 0% |
| Tonight | 46°F | Patchy Smoke then Partly Cloudy | 0 to 5 mph W | 0% |
| Sunday | 67°F | Partly Sunny | 0 to 5 mph SW | 0% |
| Sunday Night | 48°F | Partly Cloudy | 0 to 5 mph W | 0% |
| Monday | 62°F | Chance Rain Showers | 0 to 5 mph NE | 27% |
| Monday Night | 45°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 5 mph NW | 15% |
| Tuesday | 64°F | Sunny | 0 to 5 mph N | 6% |
| Tuesday Night | 46°F | Mostly Clear | 0 to 5 mph NW | 2% |
| Wednesday | 68°F | Sunny | 0 to 5 mph NE | 3% |
| Wednesday Night | 47°F | Mostly Clear | 0 to 5 mph SW | 1% |
| Thursday | 68°F | Sunny | 0 to 10 mph SW | 1% |
| Thursday Night | 47°F | Partly Cloudy | 5 to 10 mph SW | 0% |
| Friday | 66°F | Sunny | 5 to 15 mph SW | 2% |
| Friday Night | 46°F | Partly Cloudy | 5 to 15 mph SW | 2% |
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 Sep 19, 2026.