San Joaquin, CA Weather & Growing Conditions
Tonight
55°F
Clear
Clear. Low around 55, with temperatures rising to around 57 overnight. Northwest wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 55°F | Clear | 0 to 5 mph NW | 0% |
| Saturday | 90°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 57°F | Partly Cloudy | 5 mph NW | 0% |
| Sunday | 89°F | Mostly Cloudy | 5 mph NW | 0% |
| Sunday Night | 57°F | Mostly Cloudy | 5 mph NW | 1% |
| Monday | 89°F | Mostly Sunny | 5 mph NNW | 1% |
| Monday Night | 56°F | Mostly Clear | 5 mph NW | 1% |
| Tuesday | 91°F | Sunny | 5 mph NNW | 0% |
| Tuesday Night | 58°F | Clear | 0 to 5 mph NNW | 0% |
| Wednesday | 95°F | Sunny | 0 to 5 mph NNW | 0% |
| Wednesday Night | 60°F | Mostly Clear | 5 mph NW | 0% |
| Thursday | 98°F | Sunny | 5 mph NW | 0% |
| Thursday Night | 61°F | Mostly Clear | 5 mph NW | 0% |
| Friday | 95°F | Sunny | 5 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for San Joaquin, CA
Last spring frost
Feb 27
First fall frost
Nov 26
Growing season
271 days
Hardiness zone
9a
Explore more for San Joaquin, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Five Points 5 Ssw, Ca (16.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.