Hamilton City, CA Weather & Growing Conditions
Overnight
72°F
Clear
Clear. Low around 72, with temperatures rising to around 75 overnight. Northwest wind around 2 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 72°F | Clear | 2 mph NW | 0% |
| Tuesday | 102°F | Sunny | 2 to 8 mph SSE | 0% |
| Tuesday Night | 66°F | Mostly Clear | 2 to 7 mph SE | 0% |
| Wednesday | 99°F | Sunny | 2 to 8 mph SSE | 0% |
| Wednesday Night | 65°F | Clear | 2 to 8 mph SE | 0% |
| Thursday | 99°F | Sunny | 2 to 9 mph SSE | 0% |
| Thursday Night | 66°F | Clear | 2 to 9 mph ESE | 0% |
| Friday | 100°F | Sunny | 2 to 7 mph SW | 0% |
| Friday Night | 67°F | Clear | 2 to 7 mph SE | 0% |
| Saturday | 100°F | Sunny | 2 to 7 mph W | 0% |
| Saturday Night | 67°F | Clear | 1 to 7 mph ESE | 0% |
| Sunday | 98°F | Sunny | 2 to 9 mph S | 0% |
| Sunday Night | 64°F | Clear | 3 to 9 mph SE | 0% |
| Monday | 94°F | Sunny | 3 to 10 mph SE | 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 Aug 4, 2026.