Day Valley, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Day Valley, a community in Santa Cruz County, California.
This Afternoon
57°F
Light Rain Likely
Rain likely before 5pm, then a chance of rain and patchy fog. Partly sunny. High near 57, with temperatures falling to around 55 in the afternoon. Southwest wind 1 to 6 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Day Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 57°F | Light Rain Likely | 1 to 6 mph SW | 67% |
| Tonight | 48°F | Areas Of Fog then Chance Light Rain | 0 to 5 mph NW | 37% |
| Wednesday | 64°F | Sunny | 5 mph NNW | 1% |
| Wednesday Night | 49°F | Mostly Cloudy | 2 to 6 mph N | 0% |
| Thursday | 68°F | Sunny | 3 mph NNW | 0% |
| Thursday Night | 48°F | Clear | 1 to 5 mph N | 0% |
| Friday | 71°F | Sunny | 0 to 3 mph N | 0% |
| Friday Night | 52°F | Clear | 0 to 5 mph NNE | 0% |
| Saturday | 76°F | Sunny | 0 to 3 mph NNE | 0% |
| Saturday Night | 52°F | Mostly Clear | 0 to 5 mph N | 0% |
| Sunday | 75°F | Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 54°F | Partly Cloudy | 0 to 6 mph N | 0% |
| Monday | 71°F | Mostly Sunny | 3 mph NNW | 1% |
| Monday Night | 53°F | Partly Cloudy | 1 to 6 mph NNW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Day Valley (37.025, -121.856). Updated through the day.
Growing snapshot for Day Valley
Last spring frost
Jan 29
First fall frost
Dec 13
Growing season
323 days
Hardiness zone
9b
More local growing data for Day Valley: nearby ZIP 95003 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Santa Cruz, Ca (6.8 mi from Day Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.