Princeton, CA Weather & Growing Conditions
Today
101°F
Sunny
Sunny, with a high near 101. South southeast wind 1 to 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 101°F | Sunny | 1 to 6 mph SSE | 0% |
| Tonight | 65°F | Mostly Clear | 1 to 6 mph SSE | 0% |
| Wednesday | 99°F | Sunny | 1 to 7 mph SE | 0% |
| Wednesday Night | 64°F | Clear | 1 to 7 mph SE | 0% |
| Thursday | 99°F | Sunny | 1 to 7 mph ESE | 0% |
| Thursday Night | 65°F | Clear | 1 to 7 mph SE | 0% |
| Friday | 99°F | Sunny | 1 to 6 mph ENE | 0% |
| Friday Night | 66°F | Clear | 1 to 6 mph SE | 0% |
| Saturday | 99°F | Sunny | 1 to 6 mph NE | 0% |
| Saturday Night | 67°F | Clear | 1 to 6 mph SE | 0% |
| Sunday | 98°F | Sunny | 1 to 7 mph ENE | 0% |
| Sunday Night | 64°F | Clear | 2 to 7 mph SE | 0% |
| Monday | 93°F | Sunny | 2 to 8 mph ESE | 0% |
| Monday Night | 60°F | Clear | 1 to 8 mph SE | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Princeton, CA
Last spring frost
Feb 14
First fall frost
Dec 1
Growing season
293 days
Hardiness zone
9b
Explore more for Princeton, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Colusa 2 Ssw, Ca (15.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.