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.
Today
76°F
Mostly Sunny
Mostly sunny, with a high near 76. West northwest wind 10 to 15 mph, with gusts as high as 20 mph.
7-day forecast for Grover Beach
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 76°F | Mostly Sunny | 10 to 15 mph WNW | 1% |
| Tonight | 56°F | Patchy Fog | 5 to 10 mph NNW | 1% |
| Sunday | 73°F | Patchy Fog then Partly Sunny | 5 to 10 mph WNW | 1% |
| Sunday Night | 56°F | Patchy Fog | 5 to 10 mph NW | 1% |
| Monday | 63°F | Partly Sunny | 5 to 15 mph WNW | 0% |
| Monday Night | 56°F | Patchy Fog | 0 to 10 mph NW | 0% |
| Tuesday | 65°F | Patchy Fog then Mostly Sunny | 0 to 10 mph NW | 0% |
| Tuesday Night | 57°F | Partly Cloudy then Patchy Fog | 0 to 10 mph NNW | 0% |
| Wednesday | 73°F | Patchy Fog then Mostly Sunny | 0 to 5 mph NW | 0% |
| Wednesday Night | 59°F | Mostly Clear | 0 to 5 mph N | 0% |
| Thursday | 73°F | Mostly Sunny | 0 to 5 mph WSW | 0% |
| Thursday Night | 58°F | Partly Cloudy | 0 to 5 mph N | 1% |
| Friday | 70°F | Mostly Sunny | 0 to 5 mph SW | 1% |
| Friday Night | 58°F | Partly Cloudy | 0 to 5 mph WNW | 3% |
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 Sep 19, 2026.