Hayfork, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hayfork, a community in Trinity County, California.
Overnight
44°F
Clear
Clear, with a low around 44. Wind around 0 mph.
7-day forecast for Hayfork
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 44°F | Clear | 0 mph | 0% |
| Saturday | 89°F | Sunny | 1 mph ESE | 0% |
| Saturday Night | 45°F | Partly Cloudy | 2 mph WSW | 0% |
| Sunday | 90°F | Mostly Sunny | 0 to 3 mph ESE | 0% |
| Sunday Night | 47°F | Partly Cloudy | 2 mph SSW | 0% |
| Monday | 92°F | Sunny | 0 to 5 mph NNW | 0% |
| Monday Night | 47°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Tuesday | 90°F | Sunny | 0 to 7 mph NW | 0% |
| Tuesday Night | 45°F | Mostly Clear | 0 to 7 mph WNW | 0% |
| Wednesday | 89°F | Sunny | 0 to 5 mph NW | 0% |
| Wednesday Night | 45°F | Partly Cloudy | 0 to 5 mph NW | 0% |
| Thursday | 89°F | Mostly Sunny | 0 to 5 mph N | 1% |
| Thursday Night | 45°F | Partly Cloudy | 0 to 5 mph W | 1% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph WNW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Hayfork (40.576, -123.124). Updated through the day.
Growing snapshot for Hayfork
Last spring frost
Apr 16
First fall frost
Oct 31
Growing season
197 days
Hardiness zone
8b
More local growing data for Hayfork: nearby ZIP 96041 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Burnt Ranch
Coffee Creek
Douglas City
Hyampom
Junction City
Lewiston
Mad River
Platina
Post Mountain
Ruth
Salyer
Trinity Center
Trinity Village
Weaverville
Climate data from the nearest NOAA station, Big Bar 4 E, Ca (15.7 mi from Hayfork). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.