Rio Vista, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Rio Vista, a city in Solano County, California.
Today
95°F
Sunny
Sunny. High near 95, with temperatures falling to around 93 in the afternoon. West southwest wind 13 to 16 mph, with gusts as high as 25 mph.
7-day forecast for Rio Vista
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 95°F | Sunny | 13 to 16 mph WSW | 0% |
| Tonight | 61°F | Clear then Patchy Smoke | 18 mph WSW | 0% |
| Wednesday | 93°F | Sunny | 13 to 16 mph WSW | 0% |
| Wednesday Night | 61°F | Clear | 15 to 18 mph WSW | 0% |
| Thursday | 94°F | Sunny | 12 to 15 mph WSW | 0% |
| Thursday Night | 62°F | Clear | 14 to 17 mph WSW | 0% |
| Friday | 96°F | Sunny | 10 to 15 mph WSW | 0% |
| Friday Night | 63°F | Clear | 13 to 16 mph WSW | 0% |
| Saturday | 99°F | Sunny | 10 to 15 mph WSW | 0% |
| Saturday Night | 65°F | Mostly Clear | 15 mph WSW | 0% |
| Sunday | 95°F | Sunny | 12 to 16 mph WSW | 0% |
| Sunday Night | 62°F | Mostly Clear | 16 mph WSW | 0% |
| Monday | 88°F | Sunny | 13 to 16 mph WSW | 0% |
| Monday Night | 60°F | Mostly Clear | 13 to 16 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Rio Vista (38.177, -121.703). Updated through the day.
Growing snapshot for Rio Vista
Last spring frost
Jan 12
First fall frost
Dec 19
Growing season
343 days
Hardiness zone
9b
More local growing data for Rio Vista: nearby ZIP 94571 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Antioch Pumping Plt #3, Ca (11.7 mi from Rio Vista). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.