Grenada, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grenada, a community in Siskiyou County, California.
Overnight
49°F
Clear
Clear. Low around 49, with temperatures rising to around 51 overnight. North northwest wind around 2 mph.
7-day forecast for Grenada
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 49°F | Clear | 2 mph NNW | 0% |
| Saturday | 84°F | Sunny | 0 to 3 mph N | 0% |
| Saturday Night | 49°F | Partly Cloudy | 1 to 8 mph NW | 0% |
| Sunday | 86°F | Mostly Sunny | 2 to 6 mph N | 0% |
| Sunday Night | 52°F | Mostly Clear | 1 to 6 mph W | 0% |
| Monday | 87°F | Sunny | 0 to 7 mph N | 1% |
| Monday Night | 52°F | Mostly Clear | 1 to 7 mph N | 1% |
| Tuesday | 86°F | Sunny | 0 to 7 mph N | 0% |
| Tuesday Night | 50°F | Mostly Clear | 1 to 7 mph NNW | 0% |
| Wednesday | 84°F | Sunny | 0 to 3 mph NW | 1% |
| Wednesday Night | 49°F | Partly Cloudy | 3 mph NE | 1% |
| Thursday | 84°F | Mostly Sunny | 1 to 6 mph NNE | 1% |
| Thursday Night | 49°F | Partly Cloudy | 2 to 6 mph NW | 3% |
| Friday | 79°F | Mostly Sunny | 2 to 9 mph NNE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Grenada (41.640, -122.527). Updated through the day.
Growing snapshot for Grenada
Last spring frost
Apr 30
First fall frost
Oct 18
Growing season
169 days
Hardiness zone
8a
More local growing data for Grenada: nearby ZIP 96038 weather · frost dates · planting calendar · California frost dates
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Mount Hebron
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Weed
Yreka
Climate data from the nearest NOAA station, Yreka, Ca (8.3 mi from Grenada). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.