Fountain Hills, AZ Weather & Growing Conditions
This Afternoon
74°F
Sunny
Sunny. High near 74, with temperatures falling to around 72 in the afternoon. North northeast wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Sunny | 0 mph | 0% |
| Tonight | 55°F | Partly Cloudy | 0 mph | 0% |
| Wednesday | 74°F | Sunny | 0 to 5 mph WSW | 0% |
| Wednesday Night | 54°F | Clear | 0 to 5 mph NNE | 0% |
| Thursday | 75°F | Sunny | 0 to 5 mph NE | 0% |
| Thursday Night | 56°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Friday | 77°F | Mostly Sunny | 0 to 5 mph NNE | 0% |
| Friday Night | 57°F | Mostly Clear | 0 to 10 mph N | 0% |
| Saturday | 79°F | Sunny | 0 to 10 mph ENE | 0% |
| Saturday Night | 57°F | Mostly Clear | 0 to 10 mph NE | 1% |
| Sunday | 79°F | Sunny | 5 to 10 mph ENE | 3% |
| Sunday Night | 58°F | Partly Cloudy | 5 to 10 mph NE | 4% |
| Monday | 78°F | Mostly Sunny | 0 to 10 mph ESE | 6% |
| Monday Night | 58°F | Partly Cloudy | 0 to 5 mph ENE | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fountain Hills, AZ
Last spring frost
Jan 6
First fall frost
Dec 28
Growing season
356 days
Hardiness zone
9b
Explore more for Fountain Hills, AZ: full frost dates · planting calendar · Arizona frost dates
Climate data from the nearest NOAA station, Fountain Hills, Az (1.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.