Etna, CA Weather & Growing Conditions
Overnight
35°F
Mostly Clear
Mostly clear, with a low around 35. North wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 35°F | Mostly Clear | 3 mph N | 0% |
| Wednesday | 48°F | Mostly Sunny | 2 to 6 mph NNE | 3% |
| Wednesday Night | 33°F | Partly Cloudy | 6 mph NNW | 1% |
| Thursday | 52°F | Sunny | 1 to 5 mph E | 0% |
| Thursday Night | 40°F | Mostly Clear | 5 mph NE | 0% |
| Friday | 58°F | Mostly Sunny | 3 mph N | 0% |
| Friday Night | 45°F | Mostly Clear | 1 to 6 mph ENE | 0% |
| Saturday | 60°F | Sunny | 5 mph S | 1% |
| Saturday Night | 42°F | Partly Cloudy then Slight Chance Light Rain | 2 to 6 mph SSW | 15% |
| Sunday | 52°F | Slight Chance Light Rain then Partly Sunny | 3 mph SW | 15% |
| Sunday Night | 41°F | Mostly Cloudy | 1 to 5 mph ENE | 1% |
| Monday | 52°F | Slight Chance Light Rain | 3 mph SSW | 15% |
| Monday Night | 40°F | Slight Chance Light Rain | 1 to 5 mph S | 15% |
| Tuesday | 53°F | Slight Chance Light Rain | 3 mph SE | 22% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Etna, CA
Last spring frost
Mar 12
First fall frost
Nov 26
Growing season
262 days
Hardiness zone
8a
Explore more for Etna, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Orleans, Ca (16.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.