Weather in Port St. John, Florida
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 04:10 PM ET · Refreshes every hour
86°F
Overcast
Feels like 90°F
62%
Humidity
13 mph
Wind Speed
About Weather in Port St. John
Port St. John is located in Florida (coordinates: 28.475701°N, 80.810424°W). Weather data is sourced from Open-Meteo, a free and open meteorological API using data from national weather services including NOAA.
All temperatures are displayed in Fahrenheit. Wind speed is in miles per hour.