Sleepy Hollow, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sleepy Hollow, a community in Marin County, California.
Overnight
48°F
Chance Light Rain
A chance of rain before 4am. Partly cloudy, with a low around 48. East wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
7-day forecast for Sleepy Hollow
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Chance Light Rain | 5 to 9 mph E | 25% |
| Wednesday | 67°F | Sunny | 2 to 12 mph NNW | 2% |
| Wednesday Night | 48°F | Mostly Cloudy | 5 to 13 mph NW | 2% |
| Thursday | 72°F | Mostly Sunny | 5 mph NW | 0% |
| Thursday Night | 47°F | Mostly Clear | 1 to 5 mph NW | 0% |
| Friday | 73°F | Sunny | 2 mph N | 0% |
| Friday Night | 48°F | Mostly Clear | 2 mph NNW | 0% |
| Saturday | 75°F | Sunny | 1 to 5 mph NNE | 0% |
| Saturday Night | 48°F | Mostly Clear | 3 mph NW | 0% |
| Sunday | 72°F | Mostly Sunny | 2 mph NNW | 0% |
| Sunday Night | 51°F | Partly Cloudy | 3 mph NW | 0% |
| Monday | 70°F | Mostly Sunny | 3 mph WNW | 2% |
| Monday Night | 50°F | Partly Cloudy | 5 mph WNW | 2% |
| Tuesday | 70°F | Sunny | 3 mph NW | 8% |
Forecast source: National Weather Service (api.weather.gov) for Sleepy Hollow (38.012, -122.588). Updated through the day.
Growing snapshot for Sleepy Hollow
Last spring frost
Jan 11
First fall frost
Dec 21
Growing season
349 days
Hardiness zone
9b
More local growing data for Sleepy Hollow: nearby ZIP 94960 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, San Rafael Civic Ctr, Ca (2.2 mi from Sleepy Hollow). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.