Mammoth, AZ Weather & Growing Conditions
Today
104°F
Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 5pm. Sunny. High near 104, with temperatures falling to around 100 in the afternoon. Heat index values as high as 105. West wind 5 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 104°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 14 mph W | 19% |
| Tonight | 78°F | Slight Chance Showers And Thunderstorms | 2 to 12 mph SSW | 19% |
| Wednesday | 102°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 12 mph WNW | 22% |
| Wednesday Night | 77°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 1 to 10 mph SW | 22% |
| Thursday | 104°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 9 mph WNW | 19% |
| Thursday Night | 78°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 to 8 mph SW | 19% |
| Friday | 105°F | Chance Showers And Thunderstorms | 2 to 8 mph W | 32% |
| Friday Night | 78°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 to 8 mph S | 32% |
| Saturday | 106°F | Chance Showers And Thunderstorms | 2 to 6 mph NNW | 25% |
| Saturday Night | 78°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 to 9 mph S | 25% |
| Sunday | 104°F | Chance Showers And Thunderstorms | 2 to 9 mph W | 34% |
| Sunday Night | 76°F | Chance Showers And Thunderstorms | 3 to 8 mph S | 34% |
| Monday | 100°F | Chance Showers And Thunderstorms | 3 to 12 mph WSW | 36% |
| Monday Night | 75°F | Chance Showers And Thunderstorms | 2 to 10 mph S | 36% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Mammoth, AZ
Last spring frost
Mar 29
First fall frost
Nov 13
Growing season
225 days
Hardiness zone
9a
Explore more for Mammoth, AZ: full frost dates · planting calendar · Arizona frost dates
Climate data from the nearest NOAA station, Oracle Sp, Az (11.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.