St. Petersburg, FL Weather & Growing Conditions
This Afternoon
89°F
Isolated Showers And Thunderstorms
Isolated showers and thunderstorms before 3pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 89. Heat index values as high as 98. Northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 89°F | Isolated Showers And Thunderstorms | 5 mph NE | 57% |
| Tonight | 75°F | Chance Showers And Thunderstorms then Partly Cloudy | 6 mph ENE | 62% |
| Sunday | 88°F | Mostly Sunny then Isolated Showers And Thunderstorms | 6 mph NNE | 45% |
| Sunday Night | 75°F | Scattered Showers And Thunderstorms | 5 mph NE | 43% |
| Monday | 89°F | Mostly Sunny then Widespread Showers And Thunderstorms | 6 mph ENE | 75% |
| Monday Night | 75°F | Widespread Showers And Thunderstorms | 6 mph ENE | 75% |
| Tuesday | 88°F | Isolated Showers And Thunderstorms then Widespread Showers And Thunderstorms | 6 mph S | 75% |
| Tuesday Night | 77°F | Widespread Showers And Thunderstorms then Scattered Showers And Thunderstorms | 6 mph E | 75% |
| Wednesday | 88°F | Isolated Showers And Thunderstorms then Scattered Showers And Thunderstorms | 7 mph NE | 67% |
| Wednesday Night | 77°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 67% |
| Thursday | 88°F | Mostly Sunny then Scattered Showers And Thunderstorms | 8 to 12 mph NE | 45% |
| Thursday Night | 76°F | Scattered Showers And Thunderstorms | 12 mph NE | 45% |
| Friday | 88°F | Mostly Sunny then Scattered Showers And Thunderstorms | 12 mph NE | 38% |
| Friday Night | 76°F | Scattered Showers And Thunderstorms | 10 mph NE | 38% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for St. Petersburg, FL
Last spring frost
Jan 17
First fall frost
Jan 15
Growing season
365 days
Hardiness zone
10b
Explore more for St. Petersburg, FL: full frost dates · planting calendar · Florida frost dates
Climate data from the nearest NOAA station, St Petersburg, Fl (3.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.