Ione, CA Weather & Growing Conditions
Tonight
56°F
Clear
Clear. Low around 56, with temperatures rising to around 58 overnight. East southeast wind around 3 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 56°F | Clear | 3 mph ESE | 0% |
| Saturday | 89°F | Sunny | 1 to 5 mph SW | 0% |
| Saturday Night | 60°F | Partly Cloudy | 3 mph ESE | 0% |
| Sunday | 86°F | Partly Sunny | 5 mph NW | 0% |
| Sunday Night | 56°F | Mostly Cloudy | 1 to 5 mph NW | 0% |
| Monday | 88°F | Sunny | 2 to 6 mph W | 0% |
| Monday Night | 58°F | Mostly Clear | 2 to 6 mph N | 0% |
| Tuesday | 89°F | Sunny | 1 to 6 mph WNW | 0% |
| Tuesday Night | 61°F | Clear | 0 to 5 mph N | 0% |
| Wednesday | 94°F | Sunny | 1 to 6 mph NNW | 0% |
| Wednesday Night | 64°F | Mostly Clear | 1 to 6 mph NE | 0% |
| Thursday | 97°F | Sunny | 2 to 6 mph W | 0% |
| Thursday Night | 65°F | Mostly Clear | 1 to 6 mph NE | 0% |
| Friday | 93°F | Sunny | 2 to 7 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Ione, CA
Last spring frost
Mar 4
First fall frost
Dec 11
Growing season
285 days
Hardiness zone
9b
Explore more for Ione, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Sutter Hill Cdf, Ca (7.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.