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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.

This Afternoon
93°F
Sunny
Sunny, with a high near 93. Northwest wind 3 to 7 mph.

7-day forecast for Richfield

WhenTempForecastWindPrecip
This Afternoon 93°F Sunny 3 to 7 mph NW 0%
Tonight 59°F Mostly Clear 3 mph NE 0%
Sunday 89°F Mostly Sunny 2 to 7 mph SSE 0%
Sunday Night 61°F Mostly Cloudy 2 to 7 mph ENE 0%
Monday 91°F Sunny 2 to 9 mph SSE 0%
Monday Night 59°F Mostly Clear 1 to 9 mph SE 0%
Tuesday 89°F Sunny 2 to 9 mph S 0%
Tuesday Night 60°F Clear 1 to 9 mph ESE 0%
Wednesday 90°F Sunny 5 mph WSW 0%
Wednesday Night 61°F Mostly Clear 0 to 6 mph S 0%
Thursday 92°F Sunny 5 to 10 mph N 0%
Thursday Night 61°F Mostly Clear 2 to 10 mph ESE 0%
Friday 89°F Sunny 5 to 10 mph SE 1%
Friday Night 59°F Partly Cloudy 3 to 10 mph SE 1%

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 Sep 19, 2026.