Vallecito, CA Weather & Growing Conditions
Today
99°F
Sunny
Sunny, with a high near 99. Southwest wind 2 to 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 99°F | Sunny | 2 to 6 mph SW | 0% |
| Tonight | 70°F | Clear | 6 mph N | 0% |
| Wednesday | 98°F | Sunny | 6 mph SW | 0% |
| Wednesday Night | 70°F | Clear | 6 mph N | 0% |
| Thursday | 98°F | Sunny | 3 to 7 mph W | 0% |
| Thursday Night | 71°F | Clear | 6 mph N | 0% |
| Friday | 99°F | Sunny | 3 to 7 mph W | 0% |
| Friday Night | 72°F | Clear | 3 to 7 mph N | 0% |
| Saturday | 100°F | Sunny | 3 to 7 mph W | 0% |
| Saturday Night | 71°F | Mostly Clear | 3 to 7 mph N | 0% |
| Sunday | 98°F | Sunny | 3 to 7 mph SW | 0% |
| Sunday Night | 69°F | Mostly Clear | 2 to 6 mph NNE | 0% |
| Monday | 94°F | Sunny | 2 to 7 mph SSW | 0% |
| Monday Night | 66°F | Mostly Clear | 1 to 6 mph NNE | 1% |
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 Aug 4, 2026.