Arroyo Grande, CA Weather & Growing Conditions
Today
79°F
Sunny
Sunny, with a high near 79. Southwest wind 0 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Sunny | 0 to 10 mph SW | 0% |
| Tonight | 50°F | Mostly Clear | 0 to 5 mph WNW | 0% |
| Wednesday | 80°F | Sunny | 0 to 10 mph SW | 0% |
| Wednesday Night | 52°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Thursday | 82°F | Sunny | 0 to 10 mph W | 0% |
| Thursday Night | 58°F | Mostly Clear | 0 to 10 mph NW | 0% |
| Friday | 80°F | Sunny | 0 to 10 mph WSW | 0% |
| Friday Night | 60°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Saturday | 82°F | Sunny | 0 to 10 mph SW | 0% |
| Saturday Night | 60°F | Mostly Clear | 0 to 10 mph S | 0% |
| Sunday | 80°F | Sunny | 0 to 10 mph SSW | 0% |
| Sunday Night | 57°F | Mostly Clear | 0 to 10 mph SW | 1% |
| Monday | 76°F | Sunny | 0 to 10 mph SW | 1% |
| Monday Night | 55°F | Mostly Clear | 0 to 10 mph S | 1% |
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 Aug 4, 2026.