Summerhaven, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Summerhaven, a community in Pima County, Arizona.
This Afternoon
66°F
Sunny
Sunny, with a high near 66. West southwest wind around 8 mph.
7-day forecast for Summerhaven
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Sunny | 8 mph WSW | 3% |
| Tonight | 55°F | Mostly Clear | 6 mph SW | 2% |
| Saturday | 67°F | Sunny | 3 to 9 mph SW | 0% |
| Saturday Night | 54°F | Mostly Clear | 5 to 9 mph SSW | 0% |
| Sunday | 66°F | Sunny | 8 mph SW | 0% |
| Sunday Night | 54°F | Partly Cloudy | 7 mph SW | 0% |
| Monday | 65°F | Mostly Sunny | 7 mph SSW | 1% |
| Monday Night | 54°F | Partly Cloudy | 6 mph S | 12% |
| Tuesday | 65°F | Chance Showers And Thunderstorms | 3 to 7 mph SSE | 29% |
| Tuesday Night | 53°F | Slight Chance Showers And Thunderstorms | 6 to 13 mph ESE | 16% |
| Wednesday | 64°F | Chance Showers And Thunderstorms | 5 to 13 mph ESE | 26% |
| Wednesday Night | 53°F | Chance Showers And Thunderstorms | 6 to 18 mph E | 25% |
| Thursday | 62°F | Chance Showers And Thunderstorms | 6 to 17 mph ESE | 34% |
| Thursday Night | 54°F | Chance Showers And Thunderstorms | 7 to 17 mph E | 34% |
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 Sep 19, 2026.