St. Augustine, FL Weather & Growing Conditions
This Afternoon
88°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 4pm. Mostly sunny. High near 88, with temperatures falling to around 85 in the afternoon. Northeast wind around 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 88°F | Slight Chance Showers And Thunderstorms | 13 mph NE | 21% |
| Tonight | 75°F | Partly Cloudy | 1 to 10 mph E | 14% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms | 1 to 10 mph NE | 26% |
| Sunday Night | 74°F | Slight Chance Showers And Thunderstorms | 0 to 8 mph SE | 18% |
| Monday | 86°F | Showers And Thunderstorms Likely | 1 to 10 mph NE | 59% |
| Monday Night | 74°F | Showers And Thunderstorms Likely | 1 to 8 mph SE | 59% |
| Tuesday | 87°F | Showers And Thunderstorms Likely | 1 to 10 mph N | 67% |
| Tuesday Night | 74°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 1 to 8 mph NE | 67% |
| Wednesday | 86°F | Showers And Thunderstorms Likely | 1 to 13 mph N | 67% |
| Wednesday Night | 74°F | Showers And Thunderstorms Likely | 5 to 12 mph NE | 67% |
| Thursday | 85°F | Showers And Thunderstorms Likely | 8 to 21 mph NE | 60% |
| Thursday Night | 74°F | Showers And Thunderstorms Likely | 7 to 18 mph NE | 60% |
| Friday | 84°F | Chance Rain Showers then Chance Showers And Thunderstorms | 10 to 21 mph NE | 44% |
| Friday Night | 73°F | Chance Showers And Thunderstorms | 7 to 18 mph NE | 44% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Augustine, FL
Last spring frost
Feb 1
First fall frost
Jan 5
Growing season
334 days
Hardiness zone
9b
Explore more for St. Augustine, FL: full frost dates · planting calendar · Florida frost dates
Climate data from the nearest NOAA station, St Augustine Lighthouse, Fl (5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.