Isleton, CA Weather & Growing Conditions
Today
94°F
Sunny
Sunny, with a high near 94. West wind 10 to 14 mph, with gusts as high as 23 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 94°F | Sunny | 10 to 14 mph W | 0% |
| Tonight | 60°F | Clear | 9 to 14 mph W | 0% |
| Wednesday | 93°F | Sunny | 10 to 14 mph W | 0% |
| Wednesday Night | 59°F | Clear | 9 to 14 mph W | 0% |
| Thursday | 93°F | Sunny | 9 to 14 mph W | 0% |
| Thursday Night | 61°F | Clear | 8 to 14 mph WSW | 0% |
| Friday | 95°F | Sunny | 8 to 14 mph W | 0% |
| Friday Night | 62°F | Clear | 8 to 14 mph WSW | 0% |
| Saturday | 98°F | Sunny | 8 to 13 mph W | 0% |
| Saturday Night | 63°F | Mostly Clear | 8 to 13 mph WSW | 0% |
| Sunday | 94°F | Sunny | 8 to 14 mph W | 0% |
| Sunday Night | 61°F | Mostly Clear | 8 to 14 mph WSW | 0% |
| Monday | 88°F | Sunny | 8 to 14 mph W | 0% |
| Monday Night | 58°F | Mostly Clear | 7 to 14 mph WSW | 0% |
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 Aug 4, 2026.