Isleton, CA Weather & Growing Conditions
Tonight
47°F
Haze then Partly Cloudy
Haze and a slight chance of rain before 10pm. Partly cloudy, with a low around 47. North wind 2 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 47°F | Haze then Partly Cloudy | 2 to 9 mph N | 21% |
| Wednesday | 68°F | Sunny | 3 to 12 mph NW | 0% |
| Wednesday Night | 47°F | Partly Cloudy | 3 mph W | 0% |
| Thursday | 71°F | Sunny | 2 to 8 mph NW | 0% |
| Thursday Night | 46°F | Mostly Clear then Patchy Fog | 3 mph WNW | 0% |
| Friday | 71°F | Patchy Fog then Sunny | 1 to 5 mph NNW | 0% |
| Friday Night | 46°F | Clear | 1 mph N | 0% |
| Saturday | 73°F | Sunny | 0 to 3 mph NNE | 0% |
| Saturday Night | 48°F | Mostly Clear | 1 mph NNW | 0% |
| Sunday | 73°F | Mostly Sunny | 1 to 5 mph NW | 0% |
| Sunday Night | 49°F | Partly Cloudy | 2 mph NW | 0% |
| Monday | 71°F | Partly Sunny | 1 to 5 mph W | 1% |
| Monday Night | 48°F | Partly Cloudy | 2 mph W | 1% |
| Tuesday | 72°F | Mostly Sunny | 3 mph WNW | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Isleton, CA
Last spring frost
Jan 12
First fall frost
Dec 19
Growing season
343 days
Hardiness zone
9b
Explore more for Isleton, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Antioch Pumping Plt #3, Ca (14.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.