Onyx, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Onyx, a community in Kern County, California.
Today
98°F
Sunny
Sunny. High near 98, with temperatures falling to around 96 in the afternoon. West wind 5 to 25 mph, with gusts as high as 35 mph.
7-day forecast for Onyx
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 98°F | Sunny | 5 to 25 mph W | 0% |
| Tonight | 66°F | Clear | 5 to 20 mph WNW | 0% |
| Wednesday | 98°F | Sunny | 5 to 25 mph W | 0% |
| Wednesday Night | 67°F | Clear | 5 to 25 mph WNW | 0% |
| Thursday | 99°F | Sunny | 5 to 20 mph W | 0% |
| Thursday Night | 68°F | Clear | 5 to 20 mph WNW | 0% |
| Friday | 99°F | Sunny | 5 to 20 mph W | 0% |
| Friday Night | 68°F | Clear | 5 to 20 mph WNW | 0% |
| Saturday | 99°F | Sunny | 5 to 25 mph W | 1% |
| Saturday Night | 68°F | Clear | 5 to 25 mph W | 0% |
| Sunday | 98°F | Sunny | 5 to 25 mph W | 1% |
| Sunday Night | 67°F | Mostly Clear | 5 to 25 mph W | 1% |
| Monday | 95°F | Sunny | 5 to 30 mph W | 3% |
| Monday Night | 64°F | Mostly Clear | 5 to 30 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov) for Onyx (35.670, -118.227). Updated through the day.
Growing snapshot for Onyx
Last spring frost
Apr 5
First fall frost
Nov 3
Growing season
212 days
Hardiness zone
9a
More local growing data for Onyx: nearby ZIP 93283 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, S Lake Fs, Ca (5.2 mi from Onyx). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.