Casa Grande, AZ Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Casa Grande, a city in Pinal County, Arizona.
Overnight
82°F
Mostly Cloudy
Mostly cloudy. Low around 82, with temperatures rising to around 86 overnight. East southeast wind 5 to 10 mph.
7-day forecast for Casa Grande
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 82°F | Mostly Cloudy | 5 to 10 mph ESE | 3% |
| Tuesday | 106°F | Mostly Sunny | 5 to 15 mph WSW | 4% |
| Tuesday Night | 82°F | Patchy Blowing Dust | 5 to 20 mph SSW | 5% |
| Wednesday | 104°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph WSW | 18% |
| Wednesday Night | 81°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph W | 18% |
| Thursday | 105°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph WNW | 12% |
| Thursday Night | 81°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph WSW | 12% |
| Friday | 107°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 10 mph WSW | 17% |
| Friday Night | 82°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 17% |
| Saturday | 108°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 mph W | 19% |
| Saturday Night | 82°F | Slight Chance Showers And Thunderstorms | 5 mph SW | 19% |
| Sunday | 105°F | Chance Showers And Thunderstorms | 5 to 10 mph WSW | 34% |
| Sunday Night | 79°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 34% |
| Monday | 102°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 40% |
Forecast source: National Weather Service (api.weather.gov) for Casa Grande (32.907, -111.763). Updated through the day.
Growing snapshot for Casa Grande
Last spring frost
Feb 5
First fall frost
Dec 6
Growing season
305 days
Hardiness zone
9a
More local growing data for Casa Grande: nearby ZIP 85122 weather · frost dates · planting calendar · Arizona frost dates
Nearby towns & communities
Ak-Chin Village
Apache Junction
Arizona City
Blackwater
Cactus Forest
Campo Bonito
Casa Blanca
Chuichu
Coolidge
Dudleyville
Eloy
Florence
Gold Canyon
Kearny
Kohatk
Lower Santan Village
Mammoth
Marana
Maricopa
Oracle
Picacho
Queen Creek
Queen Valley
Red Rock
Sacate Village
Sacaton
Sacaton Flats Village
Saddlebrooke
San Manuel
San Tan Valley
Climate data from the nearest NOAA station, Casa Grande, Az (2.8 mi from Casa Grande). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.