Casselberry, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Casselberry, a city in Seminole County, Florida.
This Afternoon
89°F
Mostly Sunny
Mostly sunny. High near 89, with temperatures falling to around 85 in the afternoon. East northeast wind around 15 mph, with gusts as high as 25 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Casselberry
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 89°F | Mostly Sunny | 15 mph ENE | 14% |
| Tonight | 73°F | Mostly Clear | 0 to 10 mph NE | 12% |
| Saturday | 89°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 0 to 10 mph NE | 43% |
| Saturday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 10 mph NE | 22% |
| Sunday | 88°F | Showers And Thunderstorms Likely | 0 to 10 mph NE | 69% |
| Sunday Night | 73°F | Showers And Thunderstorms Likely then Partly Cloudy | 0 to 5 mph ENE | 69% |
| Monday | 89°F | Showers And Thunderstorms Likely | 0 to 5 mph ENE | 70% |
| Monday Night | 74°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 | 78% |
| Tuesday Night | 74°F | Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 0 to 5 mph SE | 78% |
| Wednesday | 88°F | Slight Chance Showers And Thunderstorms | 0 to 10 mph ENE | 67% |
| Wednesday Night | 74°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 5 to 10 mph NE | 67% |
| Thursday | 87°F | Showers And Thunderstorms Likely | 5 to 15 mph NNE | 57% |
| Thursday Night | 74°F | Showers And Thunderstorms Likely then Partly Cloudy | 5 to 10 mph NNE | 57% |
Forecast source: National Weather Service (api.weather.gov) for Casselberry (28.661, -81.322). Updated through the day.
Growing snapshot for Casselberry
Last spring frost
Jan 17
First fall frost
Jan 13
Growing season
365 days
Hardiness zone
10a
More local growing data for Casselberry: nearby ZIP 32707 weather · frost dates · planting calendar · Florida frost dates
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Sanford
Wekiwa Springs
Winter Springs
Climate data from the nearest NOAA station, Orlando Executive Ap, Fl (8.3 mi from Casselberry). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.