Farmington, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Farmington, a community in San Joaquin County, California.
This Afternoon
66°F
Chance Light Rain
A chance of rain before 4pm. Partly sunny. High near 66, with temperatures falling to around 60 in the afternoon. Northeast wind 3 to 8 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Farmington
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Chance Light Rain | 3 to 8 mph NE | 46% |
| Tonight | 48°F | Partly Cloudy | 2 to 7 mph NNE | 7% |
| Wednesday | 69°F | Sunny | 5 to 9 mph NW | 0% |
| Wednesday Night | 48°F | Partly Cloudy | 5 mph NNW | 0% |
| Thursday | 71°F | Sunny | 2 to 7 mph NNW | 0% |
| Thursday Night | 47°F | Clear then Patchy Fog | 0 to 6 mph N | 0% |
| Friday | 72°F | Patchy Fog then Sunny | 1 to 5 mph NNW | 0% |
| Friday Night | 48°F | Clear | 0 to 3 mph NNE | 0% |
| Saturday | 75°F | Sunny | 2 mph SSE | 0% |
| Saturday Night | 49°F | Mostly Clear | 1 mph N | 0% |
| Sunday | 75°F | Sunny | 1 to 5 mph NNW | 0% |
| Sunday Night | 51°F | Partly Cloudy | 0 to 3 mph N | 0% |
| Monday | 73°F | Mostly Sunny | 1 to 5 mph NNW | 1% |
| Monday Night | 50°F | Partly Cloudy | 5 mph NNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Farmington (37.930, -121.004). Updated through the day.
Growing snapshot for Farmington
Last spring frost
Feb 6
First fall frost
Dec 1
Growing season
304 days
Hardiness zone
9b
More local growing data for Farmington: nearby ZIP 95320 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Stockton Metro Ap, Ca (12.9 mi from Farmington). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.