Grenada, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grenada, a community in Siskiyou County, California.
Overnight
32°F
Mostly Clear
Mostly clear. Low around 32, with temperatures rising to around 35 overnight. Southwest wind around 2 mph.
7-day forecast for Grenada
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 32°F | Mostly Clear | 2 mph SW | 0% |
| Wednesday | 57°F | Partly Sunny | 2 mph N | 3% |
| Wednesday Night | 34°F | Partly Cloudy | 1 to 5 mph NNW | 2% |
| Thursday | 57°F | Sunny | 1 to 5 mph N | 0% |
| Thursday Night | 33°F | Mostly Clear | 3 mph S | 0% |
| Friday | 63°F | Mostly Sunny | 1 mph NE | 0% |
| Friday Night | 37°F | Mostly Clear | 2 mph SSW | 0% |
| Saturday | 69°F | Sunny | 2 mph SE | 0% |
| Saturday Night | 38°F | Partly Cloudy | 0 to 15 mph SSW | 3% |
| Sunday | 62°F | Mostly Sunny | 0 to 6 mph WNW | 3% |
| Sunday Night | 37°F | Mostly Cloudy | 0 to 5 mph SSE | 0% |
| Monday | 63°F | Partly Sunny | 0 to 3 mph NNE | 4% |
| Monday Night | 36°F | Partly Cloudy | 0 to 6 mph SSW | 6% |
| Tuesday | 63°F | Mostly Sunny then Slight Chance Light Rain | 3 mph SSW | 19% |
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
Nearby towns & communities
Carrick
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Greenview
Happy Camp
Hornbrook
Lake Shastina
Macdoel
McCloud
Montague
Mount Hebron
Mount Shasta
Tennant
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 Nov 4, 2026.