Jamul, CA Weather & Growing Conditions
Today
67°F
Sunny
Sunny, with a high near 67. Northwest wind around 10 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 67°F | Sunny | 10 mph NW | 0% |
| Tonight | 54°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Thursday | 72°F | Sunny | 5 to 10 mph NW | 0% |
| Thursday Night | 55°F | Mostly Clear | 0 to 10 mph NE | 0% |
| Friday | 75°F | Sunny | 0 to 10 mph N | 0% |
| Friday Night | 57°F | Clear | 5 to 15 mph NE | 0% |
| Saturday | 77°F | Sunny | 0 to 10 mph NE | 0% |
| Saturday Night | 60°F | Mostly Clear | 5 to 20 mph NE | 0% |
| Sunday | 77°F | Sunny | 15 mph E | 0% |
| Sunday Night | 61°F | Partly Cloudy | 15 to 25 mph E | 0% |
| Monday | 77°F | Sunny | 5 to 15 mph NW | 0% |
| Monday Night | 58°F | Mostly Clear | 5 to 10 mph NE | 0% |
| Tuesday | 76°F | Sunny | 0 to 5 mph W | 0% |
| Tuesday Night | 58°F | Mostly Clear | 5 mph NE | 1% |
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 Nov 4, 2026.