Summit, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Summit, a community in Pima County, Arizona.
Tonight
70°F
Mostly Clear
Mostly clear, with a low around 70. South southeast wind around 7 mph.
7-day forecast for Summit
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Mostly Clear | 7 mph SSE | 0% |
| Saturday | 97°F | Sunny | 5 to 9 mph SSW | 1% |
| Saturday Night | 69°F | Mostly Clear | 5 to 8 mph SSW | 1% |
| Sunday | 96°F | Sunny | 3 to 9 mph SW | 0% |
| Sunday Night | 70°F | Mostly Clear | 7 mph SSW | 0% |
| Monday | 96°F | Mostly Sunny | 3 to 10 mph SSW | 1% |
| Monday Night | 71°F | Mostly Clear | 5 to 9 mph S | 5% |
| Tuesday | 96°F | Slight Chance Showers And Thunderstorms | 3 to 9 mph SSE | 15% |
| Tuesday Night | 71°F | Partly Cloudy | 7 to 12 mph SE | 7% |
| Wednesday | 94°F | Slight Chance Showers And Thunderstorms | 5 to 15 mph E | 23% |
| Wednesday Night | 71°F | Slight Chance Showers And Thunderstorms | 10 to 17 mph ESE | 23% |
| Thursday | 92°F | Slight Chance Showers And Thunderstorms | 8 to 17 mph E | 23% |
| Thursday Night | 71°F | Chance Showers And Thunderstorms | 9 to 17 mph ESE | 25% |
| Friday | 93°F | Slight Chance Showers And Thunderstorms | 7 to 16 mph E | 25% |
Forecast source: National Weather Service (api.weather.gov) for Summit (32.062, -110.949). Updated through the day.
Growing snapshot for Summit
Last spring frost
Feb 5
First fall frost
Dec 9
Growing season
307 days
Hardiness zone
9a
More local growing data for Summit: nearby ZIP 85756 weather · frost dates · planting calendar · Arizona frost dates
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Climate data from the nearest NOAA station, Tucson Intl Ap, Az (5.1 mi from Summit). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.