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Richfield, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Richfield, a community in Tehama County, California.

Tonight
43°F
Mostly Clear
Mostly clear, with a low around 43. North northwest wind 5 to 8 mph.

7-day forecast for Richfield

WhenTempForecastWindPrecip
Tonight 43°F Mostly Clear 5 to 8 mph NNW 0%
Wednesday 68°F Sunny 3 to 10 mph NNW 2%
Wednesday Night 46°F Partly Cloudy 3 to 9 mph NNW 2%
Thursday 73°F Sunny 8 to 15 mph NNW 0%
Thursday Night 46°F Mostly Clear 8 mph NNW 0%
Friday 73°F Sunny 1 to 6 mph NNW 0%
Friday Night 46°F Mostly Clear 2 mph NNE 0%
Saturday 71°F Sunny 3 mph W 0%
Saturday Night 46°F Mostly Clear 0 to 5 mph NNW 0%
Sunday 72°F Mostly Sunny 1 to 6 mph NNW 0%
Sunday Night 47°F Partly Cloudy 0 to 3 mph N 0%
Monday 70°F Mostly Sunny 3 mph ESE 2%
Monday Night 47°F Partly Cloudy 1 to 5 mph NNE 2%
Tuesday 71°F Sunny 5 mph NNW 7%

Forecast source: National Weather Service (api.weather.gov) for Richfield (39.974, -122.173). Updated through the day.

Growing snapshot for Richfield

Last spring frost
Feb 22
First fall frost
Nov 29
Growing season
281 days
Hardiness zone
9a

More local growing data for Richfield: nearby ZIP 96090 weather · frost dates · planting calendar · California frost dates

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Climate data from the nearest NOAA station, Red Bluff Muni Ap, Ca (12.3 mi from Richfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.