Arroyo Grande, CA Weather & Growing Conditions
This Afternoon
82°F
Sunny
Sunny, with a high near 82. Northwest wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Sunny | 10 mph NW | 0% |
| Tonight | 49°F | Mostly Clear | 5 to 10 mph N | 0% |
| Saturday | 84°F | Sunny | 5 to 10 mph NW | 0% |
| Saturday Night | 50°F | Patchy Fog | 5 mph NNE | 0% |
| Sunday | 79°F | Patchy Fog then Partly Sunny | 5 to 10 mph WSW | 1% |
| Sunday Night | 48°F | Patchy Fog | 0 to 5 mph SSW | 1% |
| Monday | 76°F | Patchy Fog then Mostly Sunny | 0 to 10 mph WSW | 1% |
| Monday Night | 53°F | Partly Cloudy | 0 to 10 mph NW | 1% |
| Tuesday | 77°F | Sunny | 0 to 10 mph WNW | 0% |
| Tuesday Night | 57°F | Mostly Clear | 0 to 10 mph NNE | 0% |
| Wednesday | 86°F | Sunny | 0 to 5 mph W | 0% |
| Wednesday Night | 61°F | Mostly Clear | 0 to 5 mph ESE | 0% |
| Thursday | 85°F | Sunny | 5 to 10 mph SSW | 0% |
| Thursday Night | 60°F | Mostly Clear | 0 to 5 mph E | 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 Sep 19, 2026.