San Jacinto, CA Weather & Growing Conditions
Today
98°F
Sunny
Sunny, with a high near 98. Southwest wind 0 to 15 mph, with gusts as high as 25 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 98°F | Sunny | 0 to 15 mph SW | 1% |
| Tonight | 67°F | Mostly Clear | 0 to 10 mph W | 1% |
| Wednesday | 97°F | Sunny | 0 to 10 mph W | 1% |
| Wednesday Night | 68°F | Mostly Clear | 0 to 10 mph NW | 0% |
| Thursday | 97°F | Sunny | 0 to 10 mph SW | 1% |
| Thursday Night | 69°F | Mostly Clear | 0 to 10 mph W | 1% |
| Friday | 99°F | Sunny | 0 to 10 mph NW | 1% |
| Friday Night | 70°F | Mostly Clear | 0 to 10 mph W | 0% |
| Saturday | 101°F | Sunny | 0 to 10 mph W | 1% |
| Saturday Night | 70°F | Mostly Clear | 0 to 10 mph NW | 1% |
| Sunday | 99°F | Sunny | 0 to 10 mph SW | 4% |
| Sunday Night | 68°F | Mostly Clear | 0 to 10 mph NW | 2% |
| Monday | 95°F | Sunny | 0 to 10 mph W | 9% |
| Monday Night | 65°F | Mostly Clear | 0 to 10 mph W | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for San Jacinto, CA
Last spring frost
Jan 31
First fall frost
Dec 10
Growing season
315 days
Hardiness zone
9b
Explore more for San Jacinto, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, San Jacinto, Ca (2.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.