St. Augustine, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Augustine, a city in St. Johns County, Florida.
Today
89°F
Partly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after noon. Partly sunny. High near 89, with temperatures falling to around 84 in the afternoon. Heat index values as high as 100. South wind 7 to 12 mph, with gusts as high as 16 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for St. Augustine
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 89°F | Partly Sunny then Chance Showers And Thunderstorms | 7 to 12 mph S | 42% |
| Tonight | 75°F | Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 13 mph S | 48% |
| Wednesday | 88°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 13 mph S | 36% |
| Wednesday Night | 76°F | Chance Showers And Thunderstorms then Mostly Cloudy | 2 to 13 mph S | 31% |
| Thursday | 87°F | Chance Showers And Thunderstorms | 2 to 13 mph SE | 35% |
| Thursday Night | 77°F | Chance Showers And Thunderstorms then Partly Cloudy | 8 to 12 mph E | 26% |
| Friday | 87°F | Showers And Thunderstorms Likely | 9 to 17 mph E | 57% |
| Friday Night | 77°F | Chance Showers And Thunderstorms | 7 to 16 mph E | 35% |
| Saturday | 87°F | Chance Showers And Thunderstorms | 7 to 13 mph SE | 53% |
| Saturday Night | 76°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 to 13 mph SE | 53% |
| Sunday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 12 mph SE | 33% |
| Sunday Night | 76°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 to 12 mph SE | 33% |
| Monday | 90°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 10 mph SE | 22% |
| Monday Night | 76°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 10 mph S | 22% |
Forecast source: National Weather Service (api.weather.gov) for St. Augustine (29.896, -81.311). Updated through the day.
Growing snapshot for St. Augustine
Last spring frost
Feb 1
First fall frost
Jan 5
Growing season
334 days
Hardiness zone
9b
More local growing data for St. Augustine: nearby ZIP 32084 weather · frost dates · planting calendar · Florida frost dates
Nearby towns & communities
Butler Beach
Crescent Beach
Flagler Estates
Fruit Cove
Nocatee
Sawgrass
St. Augustine Beach
St. Augustine Shores
St. Augustine South
Vilano Beach
World Golf Village
Climate data from the nearest NOAA station, St Augustine Lighthouse, Fl (5 mi from St. Augustine). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.