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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

WhenTempForecastWindPrecip
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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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.