Antioch, CA Weather & Growing Conditions
Today
68°F
Sunny
Sunny. High near 68, with temperatures falling to around 64 in the afternoon. Northwest wind 2 to 8 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 68°F | Sunny | 2 to 8 mph NW | 1% |
| Tonight | 50°F | Mostly Cloudy | 5 mph W | 2% |
| Thursday | 72°F | Mostly Sunny | 2 to 6 mph NW | 0% |
| Thursday Night | 50°F | Clear | 3 mph W | 0% |
| Friday | 71°F | Sunny | 3 mph NW | 0% |
| Friday Night | 50°F | Mostly Clear | 2 mph NNW | 0% |
| Saturday | 72°F | Sunny | 2 mph NNE | 0% |
| Saturday Night | 52°F | Mostly Clear | 2 mph NNW | 0% |
| Sunday | 72°F | Sunny | 3 mph NW | 0% |
| Sunday Night | 52°F | Partly Cloudy | 2 mph NW | 0% |
| Monday | 71°F | Mostly Sunny | 0 to 3 mph WSW | 0% |
| Monday Night | 52°F | Partly Cloudy | 0 to 3 mph WSW | 1% |
| Tuesday | 70°F | Sunny | 2 mph WNW | 5% |
| Tuesday Night | 52°F | Mostly Clear | 2 mph WSW | 9% |
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 Nov 4, 2026.