Westhaven-Moonstone, CA Weather & Growing Conditions
Tonight
49°F
Mostly Cloudy then Patchy Fog
Patchy fog after 5am. Mostly cloudy, with a low around 49. North northeast wind 1 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 49°F | Mostly Cloudy then Patchy Fog | 1 to 5 mph NNE | 1% |
| Saturday | 63°F | Patchy Fog then Partly Sunny | 1 to 7 mph NNW | 1% |
| Saturday Night | 49°F | Patchy Fog | 1 to 6 mph NE | 2% |
| Sunday | 63°F | Patchy Fog then Mostly Cloudy | 1 to 7 mph N | 0% |
| Sunday Night | 50°F | Patchy Fog | 1 to 7 mph NNW | 1% |
| Monday | 66°F | Mostly Sunny | 2 to 6 mph NNW | 0% |
| Monday Night | 51°F | Partly Cloudy then Patchy Fog | 1 to 5 mph NNW | 0% |
| Tuesday | 65°F | Patchy Fog then Mostly Sunny | 1 to 7 mph NNW | 0% |
| Tuesday Night | 50°F | Partly Cloudy | 2 to 7 mph NNE | 0% |
| Wednesday | 68°F | Mostly Sunny | 2 to 6 mph N | 0% |
| Wednesday Night | 51°F | Partly Cloudy | 5 mph ENE | 0% |
| Thursday | 68°F | Mostly Sunny | 5 mph NNW | 1% |
| Thursday Night | 52°F | Mostly Cloudy | 3 mph NE | 6% |
| Friday | 65°F | Partly Sunny | 2 to 7 mph N | 6% |
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 Sep 19, 2026.