Jamul, CA Weather & Growing Conditions
This Afternoon
80°F
Sunny
Sunny, with a high near 80. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Sunny | 10 to 15 mph NW | 0% |
| Tonight | 59°F | Partly Cloudy | 0 to 10 mph NW | 0% |
| Sunday | 77°F | Partly Sunny | 0 to 10 mph NW | 1% |
| Sunday Night | 60°F | Mostly Cloudy | 0 to 10 mph N | 2% |
| Monday | 74°F | Sunny | 0 to 10 mph S | 0% |
| Monday Night | 58°F | Partly Cloudy | 0 to 10 mph NW | 0% |
| Tuesday | 76°F | Sunny | 5 to 15 mph N | 0% |
| Tuesday Night | 59°F | Mostly Clear | 5 to 15 mph N | 0% |
| Wednesday | 82°F | Sunny | 5 to 10 mph N | 0% |
| Wednesday Night | 64°F | Mostly Clear | 0 to 10 mph N | 0% |
| Thursday | 85°F | Sunny | 5 to 10 mph NW | 4% |
| Thursday Night | 66°F | Mostly Clear | 0 to 10 mph N | 4% |
| Friday | 85°F | Sunny | 0 to 10 mph W | 3% |
| Friday Night | 67°F | Mostly Clear | 5 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Jamul, CA
Last spring frost
Feb 12
First fall frost
Dec 24
Growing season
317 days
Hardiness zone
10a
Explore more for Jamul, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Alpine, Ca (13.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.