Isleton, CA Weather & Growing Conditions
Today
69°F
Sunny
Sunny. High near 69, with temperatures falling to around 65 in the afternoon. North northwest wind 3 to 13 mph, with gusts as high as 24 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 69°F | Sunny | 3 to 13 mph NNW | 1% |
| Tonight | 47°F | Mostly Cloudy | 3 mph WNW | 1% |
| Thursday | 72°F | Mostly Sunny | 2 to 9 mph NNW | 0% |
| Thursday Night | 46°F | Mostly Clear then Patchy Fog | 0 to 3 mph NW | 0% |
| Friday | 71°F | Patchy Fog then Sunny | 3 mph NNW | 0% |
| Friday Night | 45°F | Mostly Clear | 1 mph N | 0% |
| Saturday | 72°F | Sunny | 0 to 3 mph NNE | 0% |
| Saturday Night | 47°F | Mostly Clear | 1 mph NNW | 0% |
| Sunday | 72°F | Sunny | 3 mph NW | 0% |
| Sunday Night | 48°F | Partly Cloudy | 1 mph NNW | 0% |
| Monday | 71°F | Mostly Sunny | 0 to 3 mph WNW | 0% |
| Monday Night | 48°F | Partly Cloudy | 1 mph WSW | 1% |
| Tuesday | 72°F | Sunny | 3 mph NW | 5% |
| Tuesday Night | 49°F | Mostly Clear | 1 mph WNW | 9% |
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 (16.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.