Callahan, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Callahan, a town in Nassau County, Florida.
Overnight
73°F
Partly Cloudy
Partly cloudy. Low around 73, with temperatures rising to around 74 overnight. South wind around 2 mph.
7-day forecast for Callahan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 73°F | Partly Cloudy | 2 mph S | 1% |
| Tuesday | 93°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 7 mph SW | 36% |
| Tuesday Night | 73°F | Chance Showers And Thunderstorms | 2 to 7 mph S | 36% |
| Wednesday | 93°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 to 7 mph S | 53% |
| Wednesday Night | 74°F | Chance Showers And Thunderstorms | 0 to 7 mph SE | 40% |
| Thursday | 92°F | Chance Showers And Thunderstorms | 0 to 9 mph E | 43% |
| Thursday Night | 75°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 8 mph E | 43% |
| Friday | 92°F | Chance Showers And Thunderstorms | 1 to 12 mph E | 34% |
| Friday Night | 74°F | Chance Showers And Thunderstorms | 1 to 10 mph E | 34% |
| Saturday | 92°F | Showers And Thunderstorms Likely | 2 to 8 mph E | 65% |
| Saturday Night | 74°F | Showers And Thunderstorms Likely | 0 to 7 mph E | 65% |
| Sunday | 94°F | Mostly Sunny then Showers And Thunderstorms Likely | 0 to 5 mph SE | 56% |
| Sunday Night | 74°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 56% |
| Monday | 95°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 38% |
Forecast source: National Weather Service (api.weather.gov) for Callahan (30.565, -81.832). Updated through the day.
Growing snapshot for Callahan
Last spring frost
Feb 25
First fall frost
Dec 7
Growing season
288 days
Hardiness zone
9a
More local growing data for Callahan: nearby ZIP 32011 weather · frost dates · planting calendar · Florida frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Jacksonville, Fl (10.1 mi from Callahan). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.