Antioch, CA Weather & Growing Conditions
Overnight
66°F
Clear
Clear, with a low around 66. West northwest wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 66°F | Clear | 5 mph WNW | 0% |
| Tuesday | 100°F | Sunny | 6 to 13 mph WNW | 0% |
| Tuesday Night | 65°F | Clear | 5 to 12 mph WNW | 0% |
| Wednesday | 97°F | Sunny | 6 to 12 mph W | 0% |
| Wednesday Night | 64°F | Clear | 6 to 12 mph W | 0% |
| Thursday | 95°F | Sunny | 5 to 13 mph W | 0% |
| Thursday Night | 66°F | Clear | 5 to 13 mph WSW | 0% |
| Friday | 100°F | Sunny | 5 to 13 mph W | 0% |
| Friday Night | 69°F | Clear | 5 to 13 mph WSW | 0% |
| Saturday | 99°F | Sunny | 5 to 13 mph W | 0% |
| Saturday Night | 70°F | Mostly Clear | 5 to 13 mph WSW | 0% |
| Sunday | 95°F | Sunny | 5 to 14 mph WSW | 0% |
| Sunday Night | 66°F | Mostly Clear | 7 to 14 mph WSW | 0% |
| Monday | 90°F | Sunny | 6 to 14 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 (3.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.