Hamilton City, CA Weather & Growing Conditions
Tonight
56°F
Clear
Clear. Low around 56, with temperatures rising to around 58 overnight. West northwest wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Clear | 2 mph WNW | 0% |
| Saturday | 93°F | Sunny | 2 to 6 mph NW | 0% |
| Saturday Night | 58°F | Partly Cloudy | 3 mph NE | 0% |
| Sunday | 88°F | Mostly Sunny | 1 to 7 mph SE | 0% |
| Sunday Night | 59°F | Mostly Cloudy | 1 to 7 mph ESE | 0% |
| Monday | 91°F | Mostly Sunny | 1 to 7 mph SE | 0% |
| Monday Night | 59°F | Mostly Clear | 1 to 7 mph ESE | 0% |
| Tuesday | 91°F | Sunny | 2 to 6 mph SSE | 0% |
| Tuesday Night | 59°F | Mostly Clear | 1 to 6 mph E | 0% |
| Wednesday | 93°F | Sunny | 1 to 6 mph WNW | 0% |
| Wednesday Night | 59°F | Mostly Clear | 0 to 6 mph ESE | 0% |
| Thursday | 95°F | Sunny | 2 to 8 mph NW | 0% |
| Thursday Night | 60°F | Mostly Clear | 2 to 8 mph SE | 0% |
| Friday | 91°F | Sunny | 2 to 8 mph ESE | 0% |
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.