Grover Beach, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grover Beach, a city in San Luis Obispo County, California.
Tonight
52°F
Slight Chance Light Rain then Partly Cloudy
A slight chance of rain before 10pm. Partly cloudy, with a low around 52. North wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Grover Beach
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 52°F | Slight Chance Light Rain then Partly Cloudy | 5 to 10 mph N | 29% |
| Wednesday | 68°F | Mostly Sunny | 5 to 15 mph NNW | 0% |
| Wednesday Night | 54°F | Mostly Cloudy | 10 to 15 mph N | 0% |
| Thursday | 72°F | Mostly Sunny | 10 to 15 mph N | 0% |
| Thursday Night | 53°F | Mostly Clear | 10 to 15 mph N | 0% |
| Friday | 75°F | Sunny | 10 mph N | 0% |
| Friday Night | 54°F | Mostly Clear | 5 to 15 mph NNE | 0% |
| Saturday | 75°F | Sunny | 0 to 5 mph NNW | 0% |
| Saturday Night | 54°F | Mostly Clear | 0 to 5 mph NNE | 0% |
| Sunday | 75°F | Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 57°F | Partly Cloudy | 0 to 5 mph NNE | 0% |
| Monday | 74°F | Mostly Sunny | 0 to 5 mph NW | 0% |
| Monday Night | 56°F | Partly Cloudy | 0 to 5 mph NNW | 2% |
| Tuesday | 73°F | Sunny | 0 to 5 mph NW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Grover Beach (35.121, -120.620). Updated through the day.
Growing snapshot for Grover Beach
Last spring frost
Feb 1
First fall frost
Jan 4
Growing season
362 days
Hardiness zone
10a
More local growing data for Grover Beach: nearby ZIP 93433 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Pismo Beach, Ca (4.5 mi from Grover Beach). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.