San Diego, TX Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for San Diego, a city in Jim Wells County, Texas.
Today
78°F
Sunny
Sunny, with a high near 78. Northeast wind 5 to 8 mph.
7-day forecast for San Diego
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Sunny | 5 to 8 mph NE | 0% |
| Tonight | 58°F | Clear | 1 to 5 mph ESE | 2% |
| Thursday | 81°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 3 to 7 mph E | 20% |
| Thursday Night | 65°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 1 to 12 mph NNE | 35% |
| Friday | 76°F | Mostly Sunny | 7 to 16 mph N | 5% |
| Friday Night | 58°F | Partly Cloudy | 2 to 9 mph NNE | 1% |
| Saturday | 73°F | Partly Sunny then Slight Chance Rain Showers | 12 mph NNE | 17% |
| Saturday Night | 56°F | Chance Rain Showers | 7 to 16 mph NNE | 31% |
| Sunday | 68°F | Chance Rain Showers | 7 to 17 mph NNE | 25% |
| Sunday Night | 52°F | Partly Cloudy | 0 to 6 mph N | 13% |
| Monday | 70°F | Mostly Sunny | 6 mph NE | 9% |
| Monday Night | 52°F | Partly Cloudy | 2 mph NE | 2% |
| Tuesday | 74°F | Partly Sunny | 2 to 6 mph E | 5% |
| Tuesday Night | 55°F | Mostly Cloudy | 0 to 5 mph E | 6% |
Forecast source: National Weather Service (api.weather.gov) for San Diego (27.761, -98.239). Updated through the day.
Growing snapshot for San Diego
Last spring frost
Jan 29
First fall frost
Dec 29
Growing season
337 days
Hardiness zone
9b
More local growing data for San Diego: nearby ZIP 78332 weather · frost dates · planting calendar · Texas frost dates
Nearby towns & communities
Airport Road Addition
Alice
Alice Acres
Amargosa
Ben Bolt
Coyote Acres
Flowella
Loma Linda East
Owl Ranch
Premont
Rancho Alegre
Westdale
Climate data from the nearest NOAA station, Alice, Tx (4.1 mi from San Diego). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.