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Boulder Creek, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Boulder Creek, a community in Santa Cruz County, California.

Tonight
46°F
Chance Light Rain then Areas Of Fog
A chance of rain before 9pm, then areas of fog and a chance of rain. Partly cloudy, with a low around 46. East northeast wind around 1 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Boulder Creek

WhenTempForecastWindPrecip
Tonight 46°F Chance Light Rain then Areas Of Fog 1 mph ENE 40%
Wednesday 69°F Patchy Fog then Sunny 1 to 6 mph NNW 1%
Wednesday Night 46°F Partly Cloudy then Patchy Fog 1 to 6 mph N 0%
Thursday 74°F Patchy Fog then Sunny 1 to 5 mph N 0%
Thursday Night 46°F Clear 0 to 5 mph N 0%
Friday 78°F Sunny 2 mph N 0%
Friday Night 49°F Clear 2 mph N 0%
Saturday 82°F Sunny 1 mph NNW 0%
Saturday Night 48°F Mostly Clear 2 mph NNW 0%
Sunday 80°F Mostly Sunny 2 mph N 0%
Sunday Night 49°F Partly Cloudy 2 mph NNW 0%
Monday 76°F Mostly Sunny 3 mph NNW 1%
Monday Night 48°F Partly Cloudy 3 mph NNW 2%
Tuesday 77°F Mostly Sunny 2 mph NNW 7%

Forecast source: National Weather Service (api.weather.gov) for Boulder Creek (37.134, -122.127). Updated through the day.

Growing snapshot for Boulder Creek

Last spring frost
Mar 25
First fall frost
Nov 11
Growing season
231 days
Hardiness zone
9b

More local growing data for Boulder Creek: nearby ZIP 95007 weather · frost dates · planting calendar · California frost dates

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Climate data from the nearest NOAA station, Ben Lomond #4, Ca (2.6 mi from Boulder Creek). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.