Westhaven-Moonstone, CA Weather & Growing Conditions
Today
78°F
Patchy Smoke
Patchy smoke after 11am. Sunny, with a high near 78. South southwest wind 1 to 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Patchy Smoke | 1 to 6 mph SSW | 0% |
| Tonight | 58°F | Patchy Smoke | 0 to 6 mph SSE | 0% |
| Wednesday | 74°F | Patchy Smoke then Sunny | 0 to 5 mph WSW | 0% |
| Wednesday Night | 55°F | Partly Cloudy | 2 mph W | 0% |
| Thursday | 73°F | Mostly Sunny | 0 to 5 mph WNW | 0% |
| Thursday Night | 54°F | Partly Cloudy | 0 to 3 mph NNW | 0% |
| Friday | 73°F | Mostly Sunny | 0 to 5 mph NNW | 0% |
| Friday Night | 55°F | Partly Cloudy | 0 to 5 mph NNW | 0% |
| Saturday | 71°F | Mostly Sunny | 1 to 7 mph NNW | 0% |
| Saturday Night | 53°F | Partly Cloudy then Patchy Fog | 1 to 7 mph N | 0% |
| Sunday | 69°F | Patchy Fog then Mostly Sunny | 1 to 8 mph NNW | 0% |
| Sunday Night | 52°F | Partly Cloudy | 2 to 8 mph NNE | 0% |
| Monday | 67°F | Mostly Sunny | 2 to 8 mph N | 1% |
| Monday Night | 51°F | Partly Cloudy then Patchy Fog | 1 to 7 mph NNE | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Westhaven-Moonstone, CA
Last spring frost
Mar 8
First fall frost
Nov 30
Growing season
262 days
Hardiness zone
9b
Explore more for Westhaven-Moonstone, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Arcata Eureka Ap, Ca (9.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.