Isleton, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Isleton, a city in Sacramento County, California.
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 for Isleton
| 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) for Isleton (38.161, -121.605). Updated through the day.
Growing snapshot for Isleton
Last spring frost
Jan 12
First fall frost
Dec 19
Growing season
343 days
Hardiness zone
9b
More local growing data for Isleton: nearby ZIP 95641 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Antioch Pumping Plt #3, Ca (14.4 mi from Isleton). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.