Casa Grande, AZ Weather & Growing Conditions
Today
99°F
Sunny
Sunny, with a high near 99. South southwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 99°F | Sunny | 0 to 5 mph SSW | 0% |
| Tonight | 71°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Sunday | 98°F | Sunny | 5 mph S | 0% |
| Sunday Night | 73°F | Partly Cloudy | 5 mph SSE | 1% |
| Monday | 99°F | Mostly Sunny | 5 mph S | 0% |
| Monday Night | 73°F | Mostly Clear | 0 to 5 mph SSW | 6% |
| Tuesday | 98°F | Sunny | 5 mph SSE | 4% |
| Tuesday Night | 74°F | Mostly Clear | 0 to 5 mph ENE | 4% |
| Wednesday | 99°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph E | 11% |
| Wednesday Night | 76°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph ENE | 15% |
| Thursday | 97°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph E | 21% |
| Thursday Night | 76°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph ENE | 21% |
| Friday | 98°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph E | 18% |
| Friday Night | 76°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 5 mph E | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Casa Grande, AZ
Last spring frost
Feb 5
First fall frost
Dec 6
Growing season
305 days
Hardiness zone
9a
Explore more for Casa Grande, AZ: full frost dates · planting calendar · Arizona frost dates
Climate data from the nearest NOAA station, Casa Grande, Az (2.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.