Harman US

Jacumba, CA Weather & Growing Conditions

Tonight
57°F
Mostly Clear
Mostly clear, with a low around 57. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

7-day forecast

WhenTempForecastWindPrecip
Tonight 57°F Mostly Clear 5 to 10 mph SW 0%
Saturday 88°F Sunny 5 to 15 mph SW 0%
Saturday Night 60°F Mostly Clear 5 to 10 mph SW 0%
Sunday 87°F Mostly Sunny 5 to 10 mph S 0%
Sunday Night 59°F Partly Cloudy 5 to 10 mph SW 1%
Monday 83°F Sunny 5 to 15 mph SW 1%
Monday Night 55°F Mostly Clear 5 to 15 mph SW 0%
Tuesday 85°F Sunny 5 to 10 mph NW 0%
Tuesday Night 63°F Clear 0 to 10 mph W 0%
Wednesday 87°F Sunny 0 to 15 mph NE 1%
Wednesday Night 66°F Mostly Clear 0 to 10 mph NW 2%
Thursday 89°F Sunny 0 to 15 mph NE 8%
Thursday Night 67°F Mostly Clear 0 to 5 mph E 6%
Friday 89°F Slight Chance Rain Showers 0 to 10 mph NE 16%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Jacumba, CA

Last spring frost
Apr 29
First fall frost
Nov 1
Growing season
184 days
Hardiness zone
9b

Explore more for Jacumba, CA: full frost dates · planting calendar · California frost dates

Climate data from the nearest NOAA station, Campo Asos, Ca (18.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.