Why, AZ Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Why, a community in Pima County, Arizona.

This Afternoon

100°F

Sunny

Sunny, with a high near 100. West southwest wind around 5 mph.

7-day forecast for Why

When	Temp	Forecast	Wind	Precip
This Afternoon	100°F	Sunny	5 mph WSW	0%
Tonight	74°F	Mostly Clear	0 to 5 mph WSW	0%
Saturday	101°F	Sunny	0 to 5 mph S	0%
Saturday Night	74°F	Mostly Clear	0 to 5 mph S	0%
Sunday	99°F	Sunny	2 to 7 mph SSE	0%
Sunday Night	75°F	Partly Cloudy	2 to 6 mph S	0%
Monday	98°F	Mostly Sunny	3 to 9 mph S	1%
Monday Night	72°F	Mostly Clear	1 to 6 mph SSE	2%
Tuesday	99°F	Sunny	1 to 5 mph SSE	2%
Tuesday Night	74°F	Mostly Clear	0 to 3 mph N	2%
Wednesday	101°F	Sunny then Slight Chance Showers And Thunderstorms	3 mph SE	14%
Wednesday Night	77°F	Slight Chance Showers And Thunderstorms then Partly Cloudy	2 mph SSE	14%
Thursday	100°F	Slight Chance Showers And Thunderstorms	1 to 5 mph ENE	15%
Thursday Night	78°F	Slight Chance Showers And Thunderstorms	3 mph E	16%

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

More local growing data for Why: nearby ZIP 85321 weather · frost dates · planting calendar · Arizona frost dates

Nearby towns & communities

Ajo Ak Chin Ali Chuk Ali Chukson Ali Molina Anegam Arivaca Arivaca Junction Avra Valley Casas Adobes Catalina Catalina Foothills Charco Chiawuli Tak Comobabi Corona de Tucson Cowlic Drexel Heights Elephant Head Flowing Wells Green Valley Gu Oidak Haivana Nakya J-Six Ranchettes Kaka Kleindale Ko Vaya Maish Vaya Nelson Nolic

All Arizona locations ›

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 Sep 19, 2026.