Vallecito, CA Weather & Growing Conditions
This Afternoon
60°F
Chance Light Rain
A chance of rain. Mostly cloudy. High near 60, with temperatures falling to around 54 in the afternoon. East southeast wind around 3 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 60°F | Chance Light Rain | 3 mph ESE | 36% |
| Tonight | 42°F | Slight Chance Light Rain then Mostly Clear | 6 mph NE | 18% |
| Wednesday | 61°F | Sunny | 1 to 6 mph NW | 0% |
| Wednesday Night | 44°F | Partly Cloudy | 5 mph NNE | 0% |
| Thursday | 65°F | Sunny | 1 to 5 mph W | 0% |
| Thursday Night | 45°F | Clear | 5 mph NNE | 0% |
| Friday | 66°F | Sunny | 0 to 3 mph S | 0% |
| Friday Night | 49°F | Clear | 0 to 5 mph E | 0% |
| Saturday | 71°F | Sunny | 0 to 5 mph SE | 0% |
| Saturday Night | 50°F | Mostly Clear | 0 to 7 mph E | 0% |
| Sunday | 72°F | Sunny | 0 to 6 mph WNW | 0% |
| Sunday Night | 52°F | Partly Cloudy | 0 to 5 mph E | 0% |
| Monday | 70°F | Mostly Sunny | 0 to 3 mph N | 0% |
| Monday Night | 51°F | Partly Cloudy | 0 to 5 mph NE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Vallecito, CA
Last spring frost
Feb 20
First fall frost
Dec 11
Growing season
290 days
Hardiness zone
9a
Explore more for Vallecito, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, New Melones Dam Hq, Ca (5.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.