Callahan, FL Weather & Growing Conditions
Today
84°F
Mostly Cloudy then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 3pm. Mostly cloudy. High near 84, with temperatures falling to around 78 in the afternoon. Southeast wind around 10 mph, with gusts as high as 16 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 10 mph SE | 20% |
| Tonight | 66°F | Slight Chance Showers And Thunderstorms then Patchy Fog | 0 to 8 mph SE | 23% |
| Thursday | 84°F | Patchy Fog then Mostly Sunny | 0 to 5 mph SE | 11% |
| Thursday Night | 66°F | Partly Cloudy then Patchy Fog | 0 to 3 mph SE | 9% |
| Friday | 84°F | Patchy Fog then Partly Sunny | 1 to 6 mph SW | 12% |
| Friday Night | 59°F | Partly Cloudy | 3 mph NW | 12% |
| Saturday | 79°F | Sunny | 6 mph NW | 2% |
| Saturday Night | 52°F | Partly Cloudy | 3 mph NW | 2% |
| Sunday | 75°F | Mostly Sunny | 6 mph N | 3% |
| Sunday Night | 51°F | Partly Cloudy then Slight Chance Rain Showers | 1 to 5 mph N | 15% |
| Monday | 71°F | Slight Chance Rain Showers | 7 mph N | 15% |
| Monday Night | 49°F | Slight Chance Rain Showers then Partly Cloudy | 1 to 5 mph N | 15% |
| Tuesday | 72°F | Mostly Sunny then Slight Chance Rain Showers | 5 mph NE | 15% |
| Tuesday Night | 50°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 3 mph N | 15% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Callahan, FL
Last spring frost
Feb 25
First fall frost
Dec 7
Growing season
288 days
Hardiness zone
9a
Explore more for Callahan, FL: full frost dates · planting calendar · Florida frost dates
Climate data from the nearest NOAA station, Jacksonville, Fl (10.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.