Whetstone, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Whetstone, a community in Cochise County, Arizona.
Tonight
42°F
Mostly Clear
Mostly clear, with a low around 42. Southwest wind 0 to 3 mph.
7-day forecast for Whetstone
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 42°F | Mostly Clear | 0 to 3 mph SW | 0% |
| Wednesday | 73°F | Sunny | 3 to 10 mph SW | 0% |
| Wednesday Night | 42°F | Clear | 0 to 6 mph SW | 0% |
| Thursday | 71°F | Sunny | 3 mph S | 0% |
| Thursday Night | 44°F | Mostly Clear | 2 mph SSW | 0% |
| Friday | 71°F | Mostly Sunny | 0 to 3 mph ENE | 4% |
| Friday Night | 44°F | Mostly Clear | 3 mph ENE | 4% |
| Saturday | 71°F | Sunny | 2 to 8 mph ENE | 1% |
| Saturday Night | 44°F | Mostly Clear | 8 mph E | 1% |
| Sunday | 70°F | Sunny | 8 to 17 mph E | 3% |
| Sunday Night | 44°F | Partly Cloudy | 2 to 8 mph E | 3% |
| Monday | 72°F | Mostly Sunny | 3 mph ENE | 9% |
| Monday Night | 46°F | Partly Cloudy | 1 mph SE | 9% |
| Tuesday | 73°F | Mostly Sunny | 2 mph SSW | 5% |
Forecast source: National Weather Service (api.weather.gov) for Whetstone (31.719, -110.292). Updated through the day.
Growing snapshot for Whetstone
Last spring frost
Mar 16
First fall frost
Nov 21
Growing season
246 days
Hardiness zone
8b
More local growing data for Whetstone: nearby ZIP 85616 weather · frost dates · planting calendar · Arizona frost dates
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Climate data from the nearest NOAA station, Ft Huachuca Pioneer Airfield, Az (9 mi from Whetstone). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.