Plymouth, CA Weather & Growing Conditions
Overnight
71°F
Clear
Clear, with a low around 71. Southeast wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 71°F | Clear | 2 mph SE | 0% |
| Tuesday | 101°F | Sunny | 2 to 6 mph SSW | 0% |
| Tuesday Night | 66°F | Clear | 2 to 6 mph SSE | 0% |
| Wednesday | 99°F | Sunny | 2 to 6 mph SW | 0% |
| Wednesday Night | 65°F | Clear | 2 to 6 mph SSE | 0% |
| Thursday | 100°F | Sunny | 2 to 6 mph SW | 0% |
| Thursday Night | 66°F | Clear | 2 to 6 mph SSE | 0% |
| Friday | 100°F | Sunny | 2 to 6 mph SSW | 0% |
| Friday Night | 68°F | Clear | 2 to 6 mph SE | 0% |
| Saturday | 101°F | Sunny | 1 to 6 mph SW | 0% |
| Saturday Night | 69°F | Mostly Clear | 2 to 6 mph SE | 0% |
| Sunday | 99°F | Sunny | 2 to 7 mph SW | 0% |
| Sunday Night | 65°F | Clear | 2 to 7 mph SE | 0% |
| Monday | 94°F | Sunny | 2 to 7 mph WSW | 0% |
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 Aug 4, 2026.