Callahan, FL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Callahan, a town in Nassau County, Florida.
This Afternoon
83°F
Chance Rain Showers
A chance of rain showers after 2pm. Mostly sunny. High near 83, with temperatures falling to around 79 in the afternoon. East wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
7-day forecast for Callahan
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 83°F | Chance Rain Showers | 10 to 14 mph E | 28% |
| Tonight | 67°F | Slight Chance Rain Showers | 5 to 9 mph E | 16% |
| Wednesday | 83°F | Partly Sunny | 3 to 10 mph SE | 7% |
| Wednesday Night | 66°F | Mostly Cloudy then Patchy Fog | 1 to 7 mph SE | 5% |
| Thursday | 85°F | Patchy Fog then Chance Showers And Thunderstorms | 0 to 6 mph SE | 28% |
| Thursday Night | 66°F | Chance Showers And Thunderstorms then Patchy Fog | 1 to 5 mph S | 28% |
| Friday | 83°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 1 to 7 mph SW | 19% |
| Friday Night | 60°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 2 mph W | 19% |
| Saturday | 80°F | Mostly Sunny then Slight Chance Rain Showers | 6 mph NW | 15% |
| Saturday Night | 53°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 3 mph N | 15% |
| Sunday | 76°F | Slight Chance Rain Showers | 6 mph N | 15% |
| Sunday Night | 53°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph N | 15% |
| Monday | 72°F | Slight Chance Rain Showers | 8 mph N | 15% |
| Monday Night | 50°F | Slight Chance Rain Showers then Mostly Clear | 2 to 6 mph N | 15% |
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 Nov 3, 2026.