Day Valley, CA Weather & Growing Conditions
Tonight
54°F
Partly Cloudy then Patchy Fog
Patchy fog after midnight. Partly cloudy, with a low around 54. Northeast wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Partly Cloudy then Patchy Fog | 2 mph NE | 0% |
| Saturday | 76°F | Areas Of Fog then Mostly Sunny | 3 mph S | 0% |
| Saturday Night | 55°F | Mostly Cloudy | 2 mph NNW | 0% |
| Sunday | 71°F | Patchy Fog then Partly Sunny | 0 to 3 mph WNW | 2% |
| Sunday Night | 55°F | Patchy Fog | 2 mph WNW | 2% |
| Monday | 70°F | Areas Of Fog then Mostly Sunny | 1 to 5 mph WSW | 0% |
| Monday Night | 54°F | Areas Of Fog | 0 to 3 mph W | 0% |
| Tuesday | 74°F | Patchy Fog then Mostly Sunny | 0 to 5 mph W | 0% |
| Tuesday Night | 56°F | Mostly Clear | 2 mph N | 0% |
| Wednesday | 86°F | Sunny | 0 to 3 mph W | 0% |
| Wednesday Night | 62°F | Mostly Clear | 2 mph N | 0% |
| Thursday | 86°F | Sunny | 0 to 3 mph SW | 0% |
| Thursday Night | 60°F | Partly Cloudy | 2 mph NNW | 0% |
| Friday | 81°F | Mostly Sunny | 3 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Day Valley, CA
Last spring frost
Jan 29
First fall frost
Dec 13
Growing season
323 days
Hardiness zone
9b
Explore more for Day Valley, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Santa Cruz, Ca (6.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.