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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.

Tonight
54°F
Mostly Clear then Patchy Fog
Patchy fog between 3am and 4am. Mostly clear, with a low around 54. Northeast wind around 2 mph.

7-day forecast for Day Valley

WhenTempForecastWindPrecip
Tonight 54°F Mostly Clear then Patchy Fog 2 mph NE 0%
Saturday 74°F Patchy Fog then Mostly Sunny 3 mph SSE 0%
Saturday Night 55°F Mostly Cloudy 2 mph NNW 0%
Sunday 69°F Partly Sunny 0 to 3 mph WNW 2%
Sunday Night 55°F Patchy Fog 2 mph W 2%
Monday 68°F Patchy Fog then Mostly Sunny 1 to 5 mph WSW 0%
Monday Night 55°F Areas Of Fog 0 to 3 mph W 0%
Tuesday 74°F Mostly Sunny 0 to 5 mph WSW 0%
Tuesday Night 58°F Mostly Clear 2 mph N 0%
Wednesday 86°F Sunny 0 to 3 mph SW 0%
Wednesday Night 63°F Mostly Clear 2 mph NNW 0%
Thursday 86°F Sunny 0 to 3 mph SW 0%
Thursday Night 62°F Partly Cloudy 2 mph NW 0%
Friday 80°F Sunny 3 mph W 0%

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 Sep 19, 2026.