Keystone Heights, FL Weather & Growing Conditions
Today
92°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after noon. Mostly sunny. High near 92, with temperatures falling to around 89 in the afternoon. Heat index values as high as 103. Southwest wind 3 to 8 mph, with gusts as high as 17 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 92°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 8 mph SW | 31% |
| Tonight | 72°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 to 8 mph S | 29% |
| Wednesday | 94°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 8 mph S | 53% |
| Wednesday Night | 73°F | Chance Showers And Thunderstorms | 0 to 8 mph SE | 52% |
| Thursday | 94°F | Showers And Thunderstorms Likely | 0 to 10 mph E | 65% |
| Thursday Night | 74°F | Showers And Thunderstorms Likely then Partly Cloudy | 2 to 10 mph E | 65% |
| Friday | 93°F | Chance Showers And Thunderstorms | 3 to 15 mph E | 54% |
| Friday Night | 74°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 to 14 mph E | 54% |
| Saturday | 93°F | Showers And Thunderstorms Likely | 3 to 9 mph E | 70% |
| Saturday Night | 74°F | Showers And Thunderstorms Likely | 1 to 9 mph SE | 70% |
| Sunday | 95°F | Mostly Sunny then Chance Showers And Thunderstorms | 1 to 7 mph SE | 45% |
| Sunday Night | 74°F | Chance Showers And Thunderstorms | 0 to 7 mph SE | 45% |
| Monday | 96°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 36% |
| Monday Night | 75°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 to 5 mph S | 36% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Keystone Heights, FL
Last spring frost
Feb 8
First fall frost
Dec 24
Growing season
313 days
Hardiness zone
9a
Explore more for Keystone Heights, FL: full frost dates · planting calendar · Florida frost dates
Climate data from the nearest NOAA station, Starke, Fl (12.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.