Alta, CA Weather & Growing Conditions
Overnight
60°F
Haze
Haze after 4am. Clear. Low around 60, with temperatures rising to around 62 overnight. East northeast wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Haze | 5 mph ENE | 0% |
| Saturday | 78°F | Sunny | 0 to 5 mph ESE | 0% |
| Saturday Night | 62°F | Partly Cloudy | 1 to 5 mph NE | 0% |
| Sunday | 76°F | Partly Sunny | 3 mph SSE | 0% |
| Sunday Night | 64°F | Mostly Cloudy | 2 mph ENE | 0% |
| Monday | 76°F | Mostly Sunny | 1 to 5 mph NNW | 0% |
| Monday Night | 61°F | Mostly Clear | 2 mph NE | 0% |
| Tuesday | 77°F | Sunny | 1 to 5 mph W | 0% |
| Tuesday Night | 62°F | Mostly Clear | 2 mph NNW | 0% |
| Wednesday | 79°F | Sunny | 1 to 5 mph WSW | 0% |
| Wednesday Night | 64°F | Mostly Clear | 1 to 5 mph NNW | 0% |
| Thursday | 80°F | Sunny | 5 mph S | 0% |
| Thursday Night | 64°F | Partly Cloudy | 5 mph ESE | 1% |
| Friday | 76°F | Mostly Sunny | 5 mph SSE | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Alta, CA
Last spring frost
May 4
First fall frost
Nov 4
Growing season
183 days
Hardiness zone
8b
Explore more for Alta, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Blue Canyon Ap, Ca (4.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.