Ajo, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ajo, a community in Pima County, Arizona.
Today
104°F
Sunny
Sunny, with a high near 104. Heat index values as high as 108. South southwest wind 8 to 12 mph.
7-day forecast for Ajo
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 104°F | Sunny | 8 to 12 mph SSW | 5% |
| Tonight | 82°F | Partly Cloudy | 9 to 13 mph SSW | 5% |
| Wednesday | 103°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 12% |
| Wednesday Night | 81°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 8 mph SSW | 12% |
| Thursday | 105°F | Slight Chance Showers And Thunderstorms | 5 mph SW | 10% |
| Thursday Night | 83°F | Partly Cloudy | 2 to 6 mph SW | 9% |
| Friday | 107°F | Slight Chance Showers And Thunderstorms | 2 to 6 mph WSW | 18% |
| Friday Night | 84°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 6 mph SSW | 18% |
| Saturday | 107°F | Chance Showers And Thunderstorms | 5 mph SW | 28% |
| Saturday Night | 82°F | Chance Showers And Thunderstorms | 7 mph SSW | 28% |
| Sunday | 104°F | Chance Showers And Thunderstorms | 7 mph SSW | 32% |
| Sunday Night | 81°F | Chance Showers And Thunderstorms | 8 mph S | 32% |
| Monday | 102°F | Slight Chance Showers And Thunderstorms | 7 mph SSW | 20% |
| Monday Night | 80°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 8 mph SSW | 20% |
Forecast source: National Weather Service (api.weather.gov) for Ajo (32.392, -112.884). Updated through the day.
Growing snapshot for Ajo
Last spring frost
Jan 10
First fall frost
Dec 21
Growing season
347 days
Hardiness zone
9b
More local growing data for Ajo: nearby ZIP 85321 weather · frost dates · planting calendar · Arizona frost dates
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Climate data from the nearest NOAA station, Ajo, Az (16.1 mi from Ajo). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.