Rocklin, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rocklin, a city in Placer County, California.
This Afternoon
87°F
Sunny
Sunny, with a high near 87. Northwest wind around 5 mph.
7-day forecast for Rocklin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 87°F | Sunny | 5 mph NW | 0% |
| Tonight | 58°F | Clear | 5 mph SSE | 0% |
| Saturday | 90°F | Sunny | 5 mph SSW | 0% |
| Saturday Night | 62°F | Partly Cloudy | 5 mph SSE | 0% |
| Sunday | 87°F | Mostly Sunny | 5 mph S | 0% |
| Sunday Night | 58°F | Mostly Cloudy | 5 mph S | 0% |
| Monday | 89°F | Sunny | 6 mph SSW | 0% |
| Monday Night | 60°F | Mostly Clear | 6 mph SSE | 0% |
| Tuesday | 90°F | Sunny | 5 mph S | 0% |
| Tuesday Night | 62°F | Clear | 5 mph SSE | 0% |
| Wednesday | 95°F | Sunny | 5 mph SW | 0% |
| Wednesday Night | 65°F | Mostly Clear | 5 mph SE | 0% |
| Thursday | 98°F | Sunny | 5 mph SSW | 0% |
| Thursday Night | 66°F | Mostly Clear | 6 mph SSE | 0% |
Forecast source: National Weather Service (api.weather.gov) for Rocklin (38.807, -121.250). Updated through the day.
Growing snapshot for Rocklin
Last spring frost
Feb 25
First fall frost
Dec 5
Growing season
286 days
Hardiness zone
9b
More local growing data for Rocklin: nearby ZIP 95677 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Auburn, Ca (11.2 mi from Rocklin). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.