Interlaken, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Interlaken, a community in Santa Cruz County, California.
This Afternoon
74°F
Sunny
Sunny. High near 74, with temperatures falling to around 72 in the afternoon. Southwest wind around 7 mph.
7-day forecast for Interlaken
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Sunny | 7 mph SW | 0% |
| Tonight | 56°F | Partly Cloudy then Patchy Fog | 1 to 5 mph SE | 0% |
| Saturday | 75°F | Areas Of Fog then Mostly Sunny | 0 to 7 mph SSW | 0% |
| Saturday Night | 56°F | Mostly Cloudy then Patchy Fog | 1 to 5 mph S | 0% |
| Sunday | 71°F | Areas Of Fog then Mostly Cloudy | 1 to 6 mph SSW | 2% |
| Sunday Night | 55°F | Mostly Cloudy then Patchy Fog | 2 to 6 mph SW | 2% |
| Monday | 70°F | Patchy Fog then Mostly Sunny | 2 to 7 mph WSW | 0% |
| Monday Night | 55°F | Patchy Fog | 1 to 7 mph SW | 0% |
| Tuesday | 73°F | Areas Of Fog then Mostly Sunny | 1 to 7 mph SW | 0% |
| Tuesday Night | 56°F | Partly Cloudy | 0 to 6 mph NE | 0% |
| Wednesday | 84°F | Sunny | 1 to 6 mph NE | 0% |
| Wednesday Night | 60°F | Partly Cloudy | 1 to 5 mph N | 0% |
| Thursday | 85°F | Sunny | 1 to 6 mph SW | 0% |
| Thursday Night | 60°F | Partly Cloudy | 1 to 6 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Interlaken (36.951, -121.738). Updated through the day.
Growing snapshot for Interlaken
Last spring frost
Jan 28
First fall frost
Dec 13
Growing season
324 days
Hardiness zone
9b
More local growing data for Interlaken: nearby ZIP 95076 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Watsonville Wtr Wks, Ca (1.3 mi from Interlaken). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.