Why, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Why, a community in Pima County, Arizona.
Overnight
81°F
Mostly Cloudy
Mostly cloudy, with a low around 81. South wind around 7 mph.
7-day forecast for Why
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 81°F | Mostly Cloudy | 7 mph S | 4% |
| Tuesday | 104°F | Mostly Sunny | 8 mph SSW | 6% |
| Tuesday Night | 81°F | Partly Cloudy | 8 mph SSW | 6% |
| Wednesday | 103°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 6 mph SSW | 19% |
| Wednesday Night | 80°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SSW | 19% |
| Thursday | 105°F | Slight Chance Showers And Thunderstorms | 3 mph SW | 11% |
| Thursday Night | 82°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 mph SW | 11% |
| Friday | 107°F | Slight Chance Showers And Thunderstorms | 1 to 5 mph SW | 22% |
| Friday Night | 82°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 22% |
| Saturday | 107°F | Chance Showers And Thunderstorms | 3 mph SW | 32% |
| Saturday Night | 81°F | Chance Showers And Thunderstorms | 5 mph SSW | 32% |
| Sunday | 104°F | Chance Showers And Thunderstorms | 5 mph S | 35% |
| Sunday Night | 79°F | Chance Showers And Thunderstorms | 5 mph S | 35% |
| Monday | 102°F | Slight Chance Showers And Thunderstorms | 6 mph SSW | 21% |
Forecast source: National Weather Service (api.weather.gov) for Why (32.259, -112.731). Updated through the day.
Growing snapshot for Why
Last spring frost
Jan 10
First fall frost
Dec 21
Growing season
347 days
Hardiness zone
9b
More local growing data for Why: 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 Why). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.