Mammoth, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Mammoth, a town in Pinal County, Arizona.
This Afternoon
70°F
Sunny
Sunny. High near 70, with temperatures falling to around 66 in the afternoon. East northeast wind around 5 mph.
7-day forecast for Mammoth
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Sunny | 5 mph ENE | 0% |
| Tonight | 50°F | Partly Cloudy | 5 mph ESE | 0% |
| Wednesday | 68°F | Sunny | 3 to 12 mph SW | 0% |
| Wednesday Night | 47°F | Mostly Clear | 5 mph SSW | 0% |
| Thursday | 69°F | Sunny | 2 to 6 mph ENE | 0% |
| Thursday Night | 51°F | Partly Cloudy | 3 mph ENE | 0% |
| Friday | 70°F | Mostly Sunny | 5 mph ENE | 3% |
| Friday Night | 51°F | Mostly Clear | 7 mph ENE | 3% |
| Saturday | 71°F | Sunny | 6 to 9 mph E | 0% |
| Saturday Night | 52°F | Mostly Clear | 7 to 17 mph ESE | 3% |
| Sunday | 70°F | Sunny | 7 to 18 mph ESE | 4% |
| Sunday Night | 52°F | Partly Cloudy | 7 to 12 mph ESE | 5% |
| Monday | 71°F | Mostly Sunny | 1 to 10 mph SE | 8% |
| Monday Night | 53°F | Partly Cloudy | 3 mph ESE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Mammoth (32.685, -110.729). Updated through the day.
Growing snapshot for Mammoth
Last spring frost
Mar 29
First fall frost
Nov 13
Growing season
225 days
Hardiness zone
9a
More local growing data for Mammoth: nearby ZIP 85623 weather · frost dates · planting calendar · Arizona frost dates
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Climate data from the nearest NOAA station, Oracle Sp, Az (4.3 mi from Mammoth). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.