Lake Mary, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lake Mary, a city in Seminole County, Florida.
Overnight
70°F
Partly Cloudy
Partly cloudy, with a low around 70. East wind around 5 mph.
7-day forecast for Lake Mary
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Partly Cloudy | 5 mph E | 2% |
| Wednesday | 84°F | Mostly Sunny | 5 to 10 mph ESE | 9% |
| Wednesday Night | 68°F | Partly Cloudy | 0 to 5 mph E | 8% |
| Thursday | 86°F | Sunny | 0 to 5 mph E | 10% |
| Thursday Night | 68°F | Mostly Clear | 0 to 5 mph NE | 1% |
| Friday | 85°F | Mostly Sunny | 0 to 5 mph W | 8% |
| Friday Night | 67°F | Partly Cloudy | 0 to 5 mph WNW | 8% |
| Saturday | 82°F | Sunny | 5 mph NW | 1% |
| Saturday Night | 61°F | Mostly Clear | 0 to 5 mph N | 1% |
| Sunday | 79°F | Sunny | 5 mph NNW | 4% |
| Sunday Night | 59°F | Partly Cloudy | 5 mph N | 4% |
| Monday | 74°F | Mostly Sunny then Slight Chance Rain Showers | 5 to 10 mph N | 15% |
| Monday Night | 58°F | Slight Chance Rain Showers then Partly Cloudy | 5 mph NNE | 15% |
| Tuesday | 76°F | Mostly Sunny then Slight Chance Rain Showers | 5 mph NNE | 17% |
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 Nov 4, 2026.