Hamilton City, CA Weather & Growing Conditions
Today
93°F
Sunny
Sunny, with a high near 93. Northwest wind 2 to 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 93°F | Sunny | 2 to 6 mph NW | 0% |
| Tonight | 57°F | Partly Cloudy | 3 mph ENE | 0% |
| Sunday | 88°F | Partly Sunny | 1 to 7 mph SSE | 0% |
| Sunday Night | 57°F | Mostly Cloudy | 1 to 7 mph ESE | 0% |
| Monday | 90°F | Sunny | 2 to 7 mph S | 0% |
| Monday Night | 57°F | Mostly Clear | 0 to 7 mph ESE | 0% |
| Tuesday | 90°F | Sunny | 2 to 7 mph SSE | 0% |
| Tuesday Night | 57°F | Clear | 1 to 7 mph E | 0% |
| Wednesday | 92°F | Sunny | 1 to 5 mph W | 0% |
| Wednesday Night | 58°F | Mostly Clear | 0 to 5 mph NE | 0% |
| Thursday | 93°F | Sunny | 2 to 8 mph NNW | 0% |
| Thursday Night | 59°F | Mostly Clear | 1 to 8 mph ESE | 1% |
| Friday | 89°F | Sunny | 2 to 8 mph ESE | 1% |
| Friday Night | 56°F | Partly Cloudy | 2 to 8 mph SE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hamilton City, CA
Last spring frost
Mar 4
First fall frost
Nov 17
Growing season
257 days
Hardiness zone
9b
Explore more for Hamilton City, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Chico Univ Farm, Ca (10 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.