Summerhaven, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Summerhaven, a community in Pima County, Arizona.
Tonight
41°F
Mostly Clear
Mostly clear, with a low around 41. Southwest wind 3 to 8 mph.
7-day forecast for Summerhaven
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 41°F | Mostly Clear | 3 to 8 mph SW | 0% |
| Wednesday | 49°F | Sunny | 6 to 9 mph SW | 0% |
| Wednesday Night | 38°F | Mostly Clear | 5 mph WSW | 0% |
| Thursday | 48°F | Sunny | 2 to 6 mph S | 0% |
| Thursday Night | 41°F | Mostly Clear | 6 mph ENE | 0% |
| Friday | 49°F | Mostly Sunny | 3 to 7 mph SSW | 7% |
| Friday Night | 40°F | Mostly Clear | 5 to 16 mph NE | 7% |
| Saturday | 48°F | Sunny | 7 to 17 mph ENE | 2% |
| Saturday Night | 41°F | Mostly Clear | 9 to 28 mph E | 0% |
| Sunday | 48°F | Sunny | 9 to 28 mph E | 1% |
| Sunday Night | 40°F | Partly Cloudy | 10 to 21 mph E | 1% |
| Monday | 49°F | Mostly Sunny | 3 to 20 mph ESE | 3% |
| Monday Night | 42°F | Partly Cloudy | 3 to 7 mph ESE | 4% |
| Tuesday | 49°F | Mostly Sunny | 2 to 6 mph S | 4% |
Forecast source: National Weather Service (api.weather.gov) for Summerhaven (32.442, -110.775). Updated through the day.
Growing snapshot for Summerhaven
Last spring frost
Apr 1
First fall frost
Nov 19
Growing season
229 days
Hardiness zone
8b
More local growing data for Summerhaven: nearby ZIP 85619 weather · frost dates · planting calendar · Arizona frost dates
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Climate data from the nearest NOAA station, Mt Lemmon Willow Canyon, Az (2.4 mi from Summerhaven). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.