Fountain Hills, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fountain Hills, a town in Maricopa County, Arizona.
Today
74°F
Sunny
Sunny. High near 74, with temperatures falling to around 71 in the afternoon. Southwest wind 0 to 5 mph.
7-day forecast for Fountain Hills
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 74°F | Sunny | 0 to 5 mph SW | 0% |
| Tonight | 54°F | Clear | 0 to 5 mph N | 0% |
| Thursday | 75°F | Sunny | 0 to 5 mph NNE | 0% |
| Thursday Night | 56°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Friday | 77°F | Mostly Sunny | 0 to 5 mph N | 2% |
| Friday Night | 57°F | Clear | 0 to 10 mph N | 2% |
| Saturday | 78°F | Sunny | 0 to 10 mph NE | 0% |
| Saturday Night | 57°F | Clear | 0 to 10 mph NNE | 0% |
| Sunday | 78°F | Sunny | 5 to 10 mph ENE | 0% |
| Sunday Night | 57°F | Partly Cloudy | 5 to 10 mph NE | 0% |
| Monday | 77°F | Mostly Sunny | 0 to 10 mph ENE | 2% |
| Monday Night | 57°F | Partly Cloudy | 0 to 5 mph NE | 2% |
| Tuesday | 75°F | Mostly Sunny | 0 to 5 mph E | 3% |
| Tuesday Night | 57°F | Partly Cloudy | 0 to 5 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Fountain Hills (33.608, -111.738). Updated through the day.
Growing snapshot for Fountain Hills
Last spring frost
Jan 6
First fall frost
Dec 28
Growing season
356 days
Hardiness zone
9b
More local growing data for Fountain Hills: nearby ZIP 85268 weather · frost dates · planting calendar · Arizona frost dates
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Climate data from the nearest NOAA station, Fountain Hills, Az (1.4 mi from Fountain Hills). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.