Santee, CA Weather & Growing Conditions
Overnight
66°F
Patchy Fog
Patchy fog. Mostly cloudy, with a low around 66. South wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Patchy Fog | 0 mph | 0% |
| Tuesday | 88°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SW | 0% |
| Tuesday Night | 66°F | Patchy Fog | 0 to 10 mph W | 0% |
| Wednesday | 87°F | Patchy Fog then Mostly Sunny | 0 to 10 mph SW | 1% |
| Wednesday Night | 67°F | Mostly Clear then Patchy Fog | 0 to 5 mph W | 0% |
| Thursday | 89°F | Patchy Fog then Sunny | 0 to 10 mph SW | 1% |
| Thursday Night | 68°F | Patchy Fog | 0 to 5 mph W | 1% |
| Friday | 93°F | Patchy Fog then Sunny | 0 to 10 mph W | 1% |
| Friday Night | 67°F | Mostly Clear | 0 to 10 mph SW | 0% |
| Saturday | 91°F | Sunny | 0 to 10 mph SW | 0% |
| Saturday Night | 67°F | Mostly Clear | 0 to 10 mph SW | 0% |
| Sunday | 90°F | Sunny | 0 to 10 mph SW | 2% |
| Sunday Night | 67°F | Partly Cloudy | 0 to 10 mph SW | 3% |
| Monday | 89°F | Sunny | 0 to 10 mph SW | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Santee, CA
Last spring frost
Jan 6
First fall frost
Dec 21
Growing season
350 days
Hardiness zone
10a
Explore more for Santee, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, El Cajon, Ca (5.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.