Arroyo Grande, CA Weather & Growing Conditions
Today
69°F
Sunny
Sunny, with a high near 69. North northeast wind 5 to 15 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 69°F | Sunny | 5 to 15 mph NNE | 0% |
| Tonight | 51°F | Mostly Cloudy | 10 to 15 mph NNE | 0% |
| Thursday | 71°F | Mostly Sunny | 10 to 15 mph NNE | 0% |
| Thursday Night | 49°F | Mostly Clear | 10 to 15 mph NNE | 0% |
| Friday | 77°F | Sunny | 10 to 15 mph NNE | 0% |
| Friday Night | 51°F | Mostly Clear | 10 to 20 mph NE | 0% |
| Saturday | 79°F | Sunny | 5 to 10 mph NNW | 0% |
| Saturday Night | 52°F | Clear | 0 to 10 mph NNE | 0% |
| Sunday | 79°F | Sunny | 5 to 10 mph NE | 0% |
| Sunday Night | 53°F | Mostly Clear | 5 to 10 mph NNE | 0% |
| Monday | 78°F | Sunny | 0 to 5 mph NNW | 0% |
| Monday Night | 52°F | Partly Cloudy | 0 to 10 mph N | 2% |
| Tuesday | 75°F | Sunny | 5 mph NNW | 2% |
| Tuesday Night | 51°F | Mostly Clear | 5 to 10 mph NNE | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Arroyo Grande, CA
Last spring frost
Jan 31
First fall frost
Dec 11
Growing season
319 days
Hardiness zone
9b
Explore more for Arroyo Grande, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, San Luis Obispo Ap, Ca (10.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.