Suisun City, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Suisun City, a city in Solano County, California.
Overnight
58°F
Clear
Clear, with a low around 58. Southwest wind around 8 mph.
7-day forecast for Suisun City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Clear | 8 mph SW | 0% |
| Saturday | 88°F | Sunny | 6 to 12 mph SW | 0% |
| Saturday Night | 58°F | Partly Cloudy | 8 to 12 mph WSW | 0% |
| Sunday | 80°F | Partly Sunny | 10 mph WSW | 0% |
| Sunday Night | 57°F | Partly Cloudy | 12 mph WSW | 0% |
| Monday | 81°F | Sunny | 13 mph WSW | 0% |
| Monday Night | 57°F | Mostly Clear | 9 to 14 mph WSW | 0% |
| Tuesday | 83°F | Sunny | 7 to 12 mph WSW | 0% |
| Tuesday Night | 57°F | Mostly Clear | 3 to 12 mph WSW | 0% |
| Wednesday | 93°F | Sunny | 0 to 6 mph W | 0% |
| Wednesday Night | 61°F | Mostly Clear | 2 to 6 mph WSW | 0% |
| Thursday | 93°F | Sunny | 2 to 10 mph WSW | 0% |
| Thursday Night | 61°F | Mostly Clear | 7 to 10 mph WSW | 0% |
| Friday | 86°F | Sunny | 12 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Suisun City (38.248, -122.010). Updated through the day.
Growing snapshot for Suisun City
Last spring frost
Jan 15
First fall frost
Dec 14
Growing season
336 days
Hardiness zone
9b
More local growing data for Suisun City: nearby ZIP 94533 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Fairfield, Ca (3.4 mi from Suisun City). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.