Fetters Hot Springs-Agua Caliente, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Fetters Hot Springs-Agua Caliente, a community in Sonoma County, California.
Overnight
55°F
Partly Cloudy
Partly cloudy, with a low around 55. Wind around 0 mph.
7-day forecast for Fetters Hot Springs-Agua Caliente
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Partly Cloudy | 0 mph | 0% |
| Tuesday | 97°F | Haze then Sunny | 0 to 5 mph SW | 0% |
| Tuesday Night | 53°F | Mostly Clear | 3 mph NW | 0% |
| Wednesday | 96°F | Sunny | 3 mph W | 0% |
| Wednesday Night | 53°F | Mostly Clear then Patchy Fog | 3 mph W | 0% |
| Thursday | 94°F | Patchy Fog then Sunny | 1 to 5 mph WSW | 0% |
| Thursday Night | 53°F | Mostly Clear | 3 mph W | 0% |
| Friday | 100°F | Sunny | 1 to 5 mph WSW | 0% |
| Friday Night | 55°F | Mostly Clear | 0 to 5 mph WSW | 0% |
| Saturday | 99°F | Sunny | 0 to 5 mph SW | 0% |
| Saturday Night | 57°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Sunday | 96°F | Sunny | 0 to 6 mph SSW | 0% |
| Sunday Night | 54°F | Mostly Clear then Patchy Fog | 1 to 6 mph SSW | 0% |
| Monday | 88°F | Patchy Fog then Sunny | 1 to 7 mph SSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Fetters Hot Springs-Agua Caliente (38.328, -122.487). Updated through the day.
Growing snapshot for Fetters Hot Springs-Agua Caliente
Last spring frost
Mar 2
First fall frost
Nov 27
Growing season
270 days
Hardiness zone
9b
More local growing data for Fetters Hot Springs-Agua Caliente: nearby ZIP 95431 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Sonoma, Ca (4.5 mi from Fetters Hot Springs-Agua Caliente). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.