Day Valley, CA Weather & Growing Conditions
Today
77°F
Sunny
Sunny. High near 77, with temperatures falling to around 74 in the afternoon. Southwest wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Sunny | 3 mph SW | 0% |
| Tonight | 54°F | Areas Of Fog | 2 mph WSW | 0% |
| Wednesday | 77°F | Mostly Sunny | 0 to 3 mph SW | 0% |
| Wednesday Night | 55°F | Areas Of Fog | 2 mph WNW | 0% |
| Thursday | 80°F | Sunny | 0 to 3 mph W | 0% |
| Thursday Night | 58°F | Mostly Clear | 2 mph NW | 0% |
| Friday | 86°F | Sunny | 3 mph W | 0% |
| Friday Night | 60°F | Mostly Clear | 2 mph W | 0% |
| Saturday | 82°F | Sunny | 0 to 3 mph W | 0% |
| Saturday Night | 59°F | Mostly Clear | 2 mph WNW | 0% |
| Sunday | 79°F | Sunny | 0 to 3 mph WSW | 0% |
| Sunday Night | 55°F | Areas Of Fog | 2 mph SW | 0% |
| Monday | 73°F | Sunny | 0 to 5 mph SW | 0% |
| Monday Night | 54°F | Partly Cloudy | 0 to 3 mph SSW | 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 Aug 4, 2026.