Arivaca Junction, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Arivaca Junction, a community in Pima County, Arizona.
Tonight
66°F
Mostly Clear
Mostly clear, with a low around 66. South southwest wind around 5 mph.
7-day forecast for Arivaca Junction
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 66°F | Mostly Clear | 5 mph SSW | 1% |
| Saturday | 94°F | Sunny | 5 to 10 mph SSW | 0% |
| Saturday Night | 65°F | Mostly Clear | 7 mph SSW | 0% |
| Sunday | 92°F | Sunny | 7 to 10 mph SSW | 0% |
| Sunday Night | 67°F | Partly Cloudy | 3 to 7 mph SSW | 0% |
| Monday | 92°F | Mostly Sunny | 6 to 12 mph S | 1% |
| Monday Night | 67°F | Partly Cloudy | 5 to 8 mph S | 9% |
| Tuesday | 92°F | Slight Chance Showers And Thunderstorms | 5 to 8 mph S | 23% |
| Tuesday Night | 66°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 7 mph SSE | 16% |
| Wednesday | 91°F | Chance Showers And Thunderstorms | 5 mph E | 29% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms | 6 mph ESE | 29% |
| Thursday | 89°F | Chance Showers And Thunderstorms | 5 mph ESE | 40% |
| Thursday Night | 67°F | Chance Showers And Thunderstorms | 6 mph ESE | 31% |
| Friday | 90°F | Chance Showers And Thunderstorms | 6 mph SW | 38% |
Forecast source: National Weather Service (api.weather.gov) for Arivaca Junction (31.739, -111.074). Updated through the day.
Growing snapshot for Arivaca Junction
Last spring frost
Feb 25
First fall frost
Nov 27
Growing season
276 days
Hardiness zone
9a
More local growing data for Arivaca Junction: nearby ZIP 85622 weather · frost dates · planting calendar · Arizona frost dates
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Climate data from the nearest NOAA station, Green Valley, Az (8.3 mi from Arivaca Junction). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.