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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
61°F
Clear
Clear, with a low around 61. West southwest wind around 12 mph, with gusts as high as 21 mph.

7-day forecast for Suisun City

WhenTempForecastWindPrecip
Overnight 61°F Clear 12 mph WSW 0%
Tuesday 92°F Sunny 14 mph WSW 0%
Tuesday Night 60°F Clear 14 mph WSW 0%
Wednesday 91°F Sunny 13 mph WSW 0%
Wednesday Night 60°F Clear 14 mph WSW 0%
Thursday 91°F Sunny 13 mph WSW 0%
Thursday Night 61°F Clear 13 mph WSW 0%
Friday 94°F Sunny 8 to 14 mph WSW 0%
Friday Night 62°F Clear 9 to 14 mph WSW 0%
Saturday 95°F Sunny 7 to 13 mph WSW 0%
Saturday Night 63°F Mostly Clear 9 to 13 mph WSW 0%
Sunday 92°F Sunny 9 to 14 mph WSW 0%
Sunday Night 60°F Mostly Clear 14 mph SW 0%
Monday 85°F Sunny 15 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

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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 Aug 4, 2026.