Lake Mary, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake Mary, a city in Seminole County, Florida.
Tonight
73°F
Mostly Clear
Mostly clear, with a low around 73. North northeast wind 0 to 5 mph.
7-day forecast for Lake Mary
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 73°F | Mostly Clear | 0 to 5 mph NNE | 9% |
| Saturday | 89°F | Slight Chance Showers And Thunderstorms | 0 to 10 mph NE | 41% |
| Saturday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 10 mph NE | 20% |
| Sunday | 88°F | Showers And Thunderstorms Likely | 0 to 5 mph NE | 68% |
| Sunday Night | 73°F | Showers And Thunderstorms Likely then Partly Cloudy | 0 to 5 mph ENE | 68% |
| Monday | 89°F | Showers And Thunderstorms Likely | 0 to 5 mph NE | 70% |
| Monday Night | 73°F | Showers And Thunderstorms Likely | 0 to 5 mph ESE | 70% |
| Tuesday | 89°F | Partly Sunny then Showers And Thunderstorms | 0 to 5 mph E | 77% |
| Tuesday Night | 74°F | Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 0 to 5 mph ESE | 77% |
| Wednesday | 89°F | Slight Chance Showers And Thunderstorms | 0 to 10 mph ENE | 68% |
| Wednesday Night | 74°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 10 mph NE | 68% |
| Thursday | 87°F | Showers And Thunderstorms Likely | 5 to 15 mph NNE | 58% |
| Thursday Night | 73°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 to 10 mph NNE | 58% |
| Friday | 87°F | Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 15 mph NNE | 54% |
Forecast source: National Weather Service (api.weather.gov) for Lake Mary (28.759, -81.333). Updated through the day.
Growing snapshot for Lake Mary
Last spring frost
Jan 26
First fall frost
Jan 12
Growing season
359 days
Hardiness zone
9b
More local growing data for Lake Mary: nearby ZIP 32746 weather · frost dates · planting calendar · Florida frost dates
Nearby towns & communities
Altamonte Springs
Black Hammock
Casselberry
Fern Park
Forest City
Geneva
Goldenrod
Heathrow
Longwood
Midway
Oviedo
Sanford
Wekiwa Springs
Winter Springs
Climate data from the nearest NOAA station, Sanford, Fl (5.5 mi from Lake Mary). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.