Antioch, CA Weather & Growing Conditions
This Afternoon
61°F
Light Rain Likely
Rain likely. Partly sunny. High near 61, with temperatures falling to around 57 in the afternoon. South southeast wind 2 to 6 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 61°F | Light Rain Likely | 2 to 6 mph SSE | 65% |
| Tonight | 52°F | Chance Light Rain then Mostly Cloudy | 2 mph NNE | 30% |
| Wednesday | 67°F | Sunny | 2 to 7 mph NW | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 5 mph WSW | 0% |
| Thursday | 70°F | Sunny | 2 to 6 mph NW | 0% |
| Thursday Night | 52°F | Mostly Clear | 3 mph W | 0% |
| Friday | 71°F | Sunny | 2 mph NW | 0% |
| Friday Night | 52°F | Clear | 1 mph NNW | 0% |
| Saturday | 72°F | Sunny | 0 to 3 mph NE | 0% |
| Saturday Night | 53°F | Mostly Clear | 1 mph W | 0% |
| Sunday | 72°F | Mostly Sunny | 3 mph WNW | 0% |
| Sunday Night | 54°F | Partly Cloudy | 1 mph WNW | 0% |
| Monday | 70°F | Partly Sunny | 3 mph WSW | 1% |
| Monday Night | 54°F | Partly Cloudy | 3 mph WSW | 1% |
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 (3.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.