Arivaca Junction, AZ Weather & Growing Conditions
Today
98°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 11am. Mostly sunny. High near 98, with temperatures falling to around 94 in the afternoon. Heat index values as high as 101. West northwest wind 5 to 9 mph. Chance of precipitation is 40%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 98°F | Chance Showers And Thunderstorms | 5 to 9 mph WNW | 40% |
| Tonight | 71°F | Chance Showers And Thunderstorms | 9 mph SSW | 48% |
| Wednesday | 96°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 8 mph W | 40% |
| Wednesday Night | 71°F | Chance Showers And Thunderstorms | 3 to 7 mph WSW | 40% |
| Thursday | 98°F | Chance Showers And Thunderstorms | 2 to 8 mph WNW | 30% |
| Thursday Night | 72°F | Chance Showers And Thunderstorms | 3 to 7 mph WSW | 30% |
| Friday | 100°F | Chance Showers And Thunderstorms | 3 to 7 mph W | 41% |
| Friday Night | 71°F | Chance Showers And Thunderstorms | 7 mph SSW | 41% |
| Saturday | 100°F | Chance Showers And Thunderstorms | 6 mph N | 41% |
| Saturday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 7 mph SSW | 41% |
| Sunday | 98°F | Chance Showers And Thunderstorms | 3 to 7 mph WNW | 46% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 7 mph SSW | 46% |
| Monday | 95°F | Chance Showers And Thunderstorms | 3 to 7 mph W | 51% |
| Monday Night | 68°F | Chance Showers And Thunderstorms | 7 mph SSW | 51% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Arivaca Junction, AZ
Last spring frost
Feb 25
First fall frost
Nov 27
Growing season
276 days
Hardiness zone
9a
Explore more for Arivaca Junction, AZ: full frost dates · planting calendar · Arizona frost dates
Climate data from the nearest NOAA station, Green Valley, Az (8.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.