Plymouth, CA Weather & Growing Conditions
Today
66°F
Sunny
Sunny. High near 66, with temperatures falling to around 62 in the afternoon. Northwest wind 3 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 66°F | Sunny | 3 to 7 mph NW | 1% |
| Tonight | 46°F | Partly Cloudy | 5 mph NE | 1% |
| Thursday | 68°F | Mostly Sunny | 3 mph N | 0% |
| Thursday Night | 46°F | Clear | 5 mph ENE | 0% |
| Friday | 69°F | Sunny | 3 mph W | 0% |
| Friday Night | 49°F | Mostly Clear | 5 mph N | 0% |
| Saturday | 73°F | Sunny | 3 mph WSW | 0% |
| Saturday Night | 50°F | Mostly Clear | 1 to 5 mph ENE | 0% |
| Sunday | 73°F | Sunny | 1 to 5 mph W | 0% |
| Sunday Night | 52°F | Partly Cloudy | 5 mph N | 0% |
| Monday | 72°F | Mostly Sunny | 3 mph WSW | 1% |
| Monday Night | 51°F | Partly Cloudy | 3 mph E | 1% |
| Tuesday | 71°F | Sunny | 3 mph WSW | 8% |
| Tuesday Night | 51°F | Mostly Clear | 2 to 6 mph S | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Plymouth, CA
Last spring frost
Mar 4
First fall frost
Dec 11
Growing season
285 days
Hardiness zone
9b
Explore more for Plymouth, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Sutter Hill Cdf, Ca (9.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.