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
65°F
Light Rain Likely
Rain likely before 5pm. Partly sunny. High near 65, with temperatures falling to around 60 in the afternoon. Northeast wind 2 to 7 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Lathrop
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 65°F | Light Rain Likely | 2 to 7 mph NE | 72% |
| Tonight | 49°F | Haze then Partly Cloudy | 2 to 10 mph N | 7% |
| Wednesday | 69°F | Sunny | 6 to 10 mph NW | 0% |
| Wednesday Night | 49°F | Partly Cloudy | 6 mph WNW | 0% |
| Thursday | 72°F | Sunny | 3 to 8 mph NW | 0% |
| Thursday Night | 45°F | Clear then Patchy Fog | 1 to 5 mph WNW | 0% |
| Friday | 72°F | Patchy Fog then Sunny | 1 to 6 mph NW | 0% |
| Friday Night | 47°F | Clear | 0 to 3 mph NE | 0% |
| Saturday | 76°F | Sunny | 3 mph ENE | 0% |
| Saturday Night | 49°F | Mostly Clear | 2 mph NNW | 0% |
| Sunday | 75°F | Sunny | 1 to 5 mph NW | 0% |
| Sunday Night | 50°F | Partly Cloudy | 0 to 3 mph NW | 0% |
| Monday | 74°F | Mostly Sunny | 1 to 5 mph NW | 0% |
| Monday Night | 50°F | Partly Cloudy | 5 mph WNW | 1% |
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 Nov 3, 2026.