Harman US

Warner Valley, CA Weather & Growing Conditions

Overnight
25°F
Mostly Clear
Mostly clear, with a low around 25. Northwest wind around 2 mph.

7-day forecast

WhenTempForecastWindPrecip
Overnight 25°F Mostly Clear 2 mph NW 0%
Wednesday 48°F Mostly Sunny 3 mph N 1%
Wednesday Night 27°F Partly Cloudy 2 to 7 mph N 1%
Thursday 52°F Sunny 2 to 7 mph NNE 0%
Thursday Night 29°F Mostly Clear 2 to 6 mph NE 0%
Friday 57°F Mostly Sunny 0 to 5 mph NE 0%
Friday Night 31°F Mostly Clear 0 to 8 mph NE 0%
Saturday 58°F Sunny 1 to 8 mph SE 0%
Saturday Night 33°F Partly Cloudy 1 to 7 mph SW 0%
Sunday 57°F Mostly Sunny 2 to 7 mph SSW 0%
Sunday Night 33°F Partly Cloudy 5 mph SSW 0%
Monday 54°F Partly Sunny 6 mph SSW 2%
Monday Night 32°F Partly Cloudy 5 mph WSW 2%
Tuesday 54°F Mostly Sunny then Slight Chance Light Rain 6 mph SW 15%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Warner Valley, CA

Last spring frost
May 28
First fall frost
Sep 28
Growing season
124 days
Hardiness zone
7a

Explore more for Warner Valley, CA: full frost dates · planting calendar · California frost dates

Climate data from the nearest NOAA station, Chester, Ca (11.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.