Etna, CA Weather & Growing Conditions
Today
92°F
Sunny
Sunny, with a high near 92. East southeast wind 3 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 92°F | Sunny | 3 to 10 mph ESE | 0% |
| Tonight | 70°F | Clear then Patchy Smoke | 6 to 10 mph SSE | 0% |
| Wednesday | 93°F | Sunny | 5 to 9 mph SSE | 1% |
| Wednesday Night | 69°F | Clear | 6 to 9 mph SSW | 1% |
| Thursday | 93°F | Sunny | 3 to 9 mph SSW | 1% |
| Thursday Night | 69°F | Clear | 5 to 9 mph SSW | 1% |
| Friday | 92°F | Sunny | 3 to 10 mph N | 3% |
| Friday Night | 69°F | Clear | 2 to 10 mph NE | 3% |
| Saturday | 90°F | Sunny | 2 to 13 mph NNE | 1% |
| Saturday Night | 65°F | Mostly Clear | 2 to 13 mph NE | 1% |
| Sunday | 87°F | Sunny | 2 to 14 mph NNE | 1% |
| Sunday Night | 62°F | Clear | 2 to 14 mph NE | 1% |
| Monday | 85°F | Sunny | 2 to 13 mph NNE | 0% |
| Monday Night | 60°F | Clear | 2 to 13 mph ENE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Etna, CA
Last spring frost
May 20
First fall frost
Oct 5
Growing season
135 days
Hardiness zone
8a
Explore more for Etna, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Callahan, Ca (4.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.