Rocklin, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rocklin, a city in Placer County, California.
Today
104°F
Sunny
Sunny, with a high near 104. South southwest wind around 7 mph.
7-day forecast for Rocklin
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 104°F | Sunny | 7 mph SSW | 0% |
| Tonight | 68°F | Clear | 7 mph SSE | 0% |
| Wednesday | 102°F | Sunny | 6 mph S | 0% |
| Wednesday Night | 67°F | Clear | 6 mph S | 0% |
| Thursday | 102°F | Sunny | 6 mph SSW | 0% |
| Thursday Night | 68°F | Clear | 6 mph S | 0% |
| Friday | 103°F | Sunny | 5 mph SSW | 0% |
| Friday Night | 70°F | Clear | 7 mph S | 0% |
| Saturday | 104°F | Sunny | 5 mph SSW | 0% |
| Saturday Night | 70°F | Clear | 7 mph S | 0% |
| Sunday | 101°F | Sunny | 7 mph S | 0% |
| Sunday Night | 66°F | Mostly Clear | 8 mph S | 0% |
| Monday | 96°F | Sunny | 6 to 9 mph S | 0% |
| Monday Night | 63°F | Mostly Clear | 6 to 9 mph S | 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
Nearby towns & communities
Alta
Auburn
Carnelian Bay
Cedar Flat
Colfax
Dollar Point
Dutch Flat
Foresthill
Granite Bay
Kings Beach
Kingvale
Lake of the Pines
Lincoln
Loomis
Meadow Vista
Newcastle
North Auburn
Penryn
Roseville
Sheridan
Soda Springs
Sunnyside-Tahoe City
Tahoe Vista
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 Aug 4, 2026.