Rosamond, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rosamond, a community in Kern County, California.
Overnight
55°F
Clear
Clear. Low around 55, with temperatures rising to around 57 overnight. West northwest wind around 0 mph.
7-day forecast for Rosamond
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Clear | 0 mph | 0% |
| Saturday | 89°F | Sunny | 0 to 5 mph NE | 0% |
| Saturday Night | 59°F | Mostly Clear | 0 mph | 0% |
| Sunday | 90°F | Mostly Sunny | 0 to 10 mph E | 0% |
| Sunday Night | 61°F | Partly Cloudy | 0 to 10 mph WSW | 1% |
| Monday | 85°F | Sunny | 0 to 15 mph SW | 3% |
| Monday Night | 58°F | Mostly Clear | 0 to 15 mph WSW | 3% |
| Tuesday | 89°F | Sunny | 0 to 5 mph E | 1% |
| Tuesday Night | 62°F | Clear | 0 mph | 0% |
| Wednesday | 93°F | Sunny | 0 to 10 mph ENE | 1% |
| Wednesday Night | 64°F | Clear | 0 to 5 mph NE | 1% |
| Thursday | 93°F | Sunny | 0 to 5 mph E | 2% |
| Thursday Night | 64°F | Mostly Clear | 0 mph | 2% |
| Friday | 92°F | Sunny | 0 to 15 mph SSW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Rosamond (34.866, -118.215). Updated through the day.
Growing snapshot for Rosamond
Last spring frost
Apr 3
First fall frost
Nov 1
Growing season
211 days
Hardiness zone
8b
More local growing data for Rosamond: nearby ZIP 93560 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Lancaster Wm J Fox Fld, Ca (11.3 mi from Rosamond). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.