Summerhaven, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Summerhaven, a community in Pima County, Arizona.
Overnight
60°F
Mostly Cloudy
Mostly cloudy, with a low around 60. North northwest wind around 10 mph.
7-day forecast for Summerhaven
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Mostly Cloudy | 10 mph NNW | 4% |
| Tuesday | 70°F | Sunny then Chance Showers And Thunderstorms | 8 to 14 mph NNW | 27% |
| Tuesday Night | 60°F | Chance Showers And Thunderstorms | 8 to 13 mph NW | 30% |
| Wednesday | 69°F | Mostly Sunny then Chance Showers And Thunderstorms | 6 to 12 mph WNW | 29% |
| Wednesday Night | 60°F | Chance Showers And Thunderstorms then Mostly Cloudy | 6 to 10 mph WSW | 29% |
| Thursday | 70°F | Chance Showers And Thunderstorms | 6 to 10 mph WNW | 25% |
| Thursday Night | 60°F | Chance Showers And Thunderstorms | 7 to 10 mph NE | 25% |
| Friday | 72°F | Chance Showers And Thunderstorms | 7 mph NNW | 35% |
| Friday Night | 61°F | Chance Showers And Thunderstorms | 8 mph E | 35% |
| Saturday | 72°F | Chance Showers And Thunderstorms | 6 mph NNW | 31% |
| Saturday Night | 61°F | Chance Showers And Thunderstorms then Partly Cloudy | 6 to 9 mph SSE | 31% |
| Sunday | 70°F | Chance Showers And Thunderstorms | 5 to 8 mph NNW | 41% |
| Sunday Night | 59°F | Chance Showers And Thunderstorms | 6 to 9 mph S | 41% |
| Monday | 68°F | Chance Showers And Thunderstorms | 6 to 10 mph WSW | 48% |
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 Aug 4, 2026.