Ione, CA Weather & Growing Conditions
Overnight
46°F
Mostly Clear
Mostly clear. Low around 46, with temperatures rising to around 48 overnight. North northeast wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Mostly Clear | 6 mph NNE | 0% |
| Wednesday | 67°F | Sunny | 3 to 8 mph NNW | 1% |
| Wednesday Night | 46°F | Mostly Cloudy | 3 mph NE | 1% |
| Thursday | 69°F | Mostly Sunny | 5 mph NW | 0% |
| Thursday Night | 46°F | Clear | 5 mph ENE | 0% |
| Friday | 70°F | Sunny | 3 mph W | 0% |
| Friday Night | 49°F | Mostly Clear | 2 to 6 mph ENE | 0% |
| Saturday | 74°F | Sunny | 3 mph WSW | 0% |
| Saturday Night | 49°F | Mostly Clear | 1 to 5 mph NE | 0% |
| Sunday | 74°F | Sunny | 1 to 5 mph NW | 0% |
| Sunday Night | 51°F | Partly Cloudy | 5 mph NE | 0% |
| Monday | 72°F | Mostly Sunny | 3 mph W | 1% |
| Monday Night | 49°F | Partly Cloudy | 2 mph ENE | 1% |
| Tuesday | 71°F | Sunny | 3 mph W | 6% |
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 Nov 4, 2026.