Antioch, CA Weather & Growing Conditions
Tonight
59°F
Partly Cloudy
Partly cloudy, with a low around 59. Southwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Partly Cloudy | 5 mph SW | 0% |
| Sunday | 82°F | Partly Sunny | 3 to 7 mph W | 0% |
| Sunday Night | 58°F | Mostly Cloudy | 7 mph WSW | 0% |
| Monday | 84°F | Sunny | 5 to 9 mph WSW | 0% |
| Monday Night | 58°F | Mostly Clear | 2 to 9 mph WSW | 0% |
| Tuesday | 85°F | Sunny | 2 to 8 mph WSW | 0% |
| Tuesday Night | 58°F | Mostly Clear | 0 to 8 mph SW | 0% |
| Wednesday | 93°F | Sunny | 0 to 5 mph WNW | 0% |
| Wednesday Night | 63°F | Mostly Clear | 0 to 5 mph WNW | 0% |
| Thursday | 96°F | Sunny | 0 to 7 mph NW | 0% |
| Thursday Night | 64°F | Mostly Clear | 2 to 7 mph WSW | 0% |
| Friday | 90°F | Sunny | 2 to 10 mph WSW | 0% |
| Friday Night | 61°F | Mostly Clear | 3 to 10 mph WSW | 0% |
| Saturday | 84°F | Sunny | 3 to 10 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Antioch, CA
Last spring frost
Jan 12
First fall frost
Dec 19
Growing season
343 days
Hardiness zone
9b
Explore more for Antioch, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Antioch Pumping Plt #3, Ca (2.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.