Alta, CA Weather & Growing Conditions
Today
85°F
Sunny
Sunny. High near 85, with temperatures falling to around 82 in the afternoon. South wind 3 to 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 3 to 7 mph S | 0% |
| Tonight | 64°F | Clear | 2 to 6 mph ESE | 0% |
| Wednesday | 84°F | Sunny | 3 to 7 mph S | 0% |
| Wednesday Night | 63°F | Clear | 3 to 7 mph SW | 0% |
| Thursday | 85°F | Sunny | 3 to 7 mph SSE | 0% |
| Thursday Night | 65°F | Clear | 2 to 7 mph SSE | 0% |
| Friday | 85°F | Sunny | 3 to 7 mph SW | 0% |
| Friday Night | 65°F | Clear | 2 to 7 mph SW | 0% |
| Saturday | 85°F | Sunny | 3 to 8 mph SSE | 0% |
| Saturday Night | 65°F | Mostly Clear | 2 to 8 mph SSE | 0% |
| Sunday | 83°F | Sunny | 3 to 8 mph S | 0% |
| Sunday Night | 63°F | Clear | 5 to 8 mph SE | 0% |
| Monday | 79°F | Sunny | 5 to 9 mph S | 1% |
| Monday Night | 60°F | Mostly Clear | 3 to 8 mph SE | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Alta, CA
Last spring frost
May 22
First fall frost
Oct 16
Growing season
147 days
Hardiness zone
8a
Explore more for Alta, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Lake Spaulding, Ca (2.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.