Rio Vista, CA Weather & Growing Conditions
This Afternoon
84°F
Sunny
Sunny, with a high near 84. West wind around 13 mph, with gusts as high as 18 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 84°F | Sunny | 13 mph W | 0% |
| Tonight | 59°F | Clear | 13 to 16 mph WSW | 0% |
| Saturday | 88°F | Sunny | 8 to 13 mph WSW | 0% |
| Saturday Night | 59°F | Partly Cloudy | 14 mph WSW | 0% |
| Sunday | 81°F | Partly Sunny | 14 mph WSW | 0% |
| Sunday Night | 58°F | Mostly Cloudy | 13 to 18 mph WSW | 0% |
| Monday | 83°F | Sunny | 14 to 18 mph WSW | 0% |
| Monday Night | 58°F | Mostly Clear | 16 mph WSW | 0% |
| Tuesday | 86°F | Sunny | 9 to 14 mph WSW | 0% |
| Tuesday Night | 59°F | Mostly Clear | 7 to 13 mph WSW | 0% |
| Wednesday | 95°F | Sunny | 3 to 7 mph W | 0% |
| Wednesday Night | 64°F | Mostly Clear | 5 to 8 mph W | 0% |
| Thursday | 95°F | Sunny | 6 to 10 mph W | 0% |
| Thursday Night | 64°F | Mostly Clear | 10 to 15 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Rio Vista, CA
Last spring frost
Jan 12
First fall frost
Dec 19
Growing season
343 days
Hardiness zone
9b
Explore more for Rio Vista, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Antioch Pumping Plt #3, Ca (11.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.