Lathrop, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lathrop, a city in San Joaquin County, California.
This Afternoon
86°F
Sunny
Sunny, with a high near 86. Northwest wind around 10 mph, with gusts as high as 20 mph.
7-day forecast for Lathrop
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 86°F | Sunny | 10 mph NW | 0% |
| Tonight | 56°F | Clear | 2 to 8 mph W | 0% |
| Saturday | 90°F | Sunny | 3 to 7 mph W | 0% |
| Saturday Night | 57°F | Partly Cloudy | 6 mph WNW | 0% |
| Sunday | 85°F | Partly Sunny | 7 mph WNW | 1% |
| Sunday Night | 57°F | Mostly Cloudy | 7 mph WNW | 1% |
| Monday | 88°F | Sunny | 8 mph WNW | 0% |
| Monday Night | 56°F | Mostly Clear | 3 to 8 mph WNW | 0% |
| Tuesday | 90°F | Sunny | 2 to 7 mph NW | 0% |
| Tuesday Night | 58°F | Clear | 2 to 6 mph WNW | 0% |
| Wednesday | 95°F | Sunny | 5 mph NW | 0% |
| Wednesday Night | 62°F | Mostly Clear | 1 to 5 mph NW | 0% |
| Thursday | 98°F | Sunny | 1 to 6 mph NW | 0% |
| Thursday Night | 63°F | Mostly Clear | 6 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Lathrop (37.809, -121.318). Updated through the day.
Growing snapshot for Lathrop
Last spring frost
Feb 6
First fall frost
Dec 1
Growing season
304 days
Hardiness zone
9b
More local growing data for Lathrop: nearby ZIP 95330 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Stockton Metro Ap, Ca (7.2 mi from Lathrop). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.