| NWS Forecast for: Southeast Coastal St. Johns Issued by: National Weather Service Jacksonville, FL Last Update: 717 PM EDT Wed Sep 9 2026 | |
| Tonight: Partly cloudy. Lows in the mid 70s. Southeast winds 5 to 10 mph. Thursday: Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs around 90. Southeast winds 5 to 10 mph. Chance of rain 50 percent. Thursday Night: Mostly cloudy. A chance of showers and thunderstorms in the evening. Lows in the mid 70s. South winds 5 to 10 mph. Chance of rain 40 percent. Friday: Mostly sunny with a chance of showers with a slight chance of thunderstorms in the morning, then mostly cloudy with showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 90s. Southwest winds around 5 mph, becoming southeast in the afternoon. Chance of rain 70 percent. Heat index values up to 105. Friday Night: Mostly cloudy with a chance of showers. Thunderstorms likely, mainly in the evening. Lows in the mid 70s. South winds 5 to 10 mph. Chance of rain 70 percent. Saturday And Saturday Night: Mostly cloudy. Showers and thunderstorms likely. Highs in the lower 90s. Lows in the mid 70s. Chance of rain 70 percent. Heat index values up to 105. Sunday And Sunday Night: Partly cloudy. A chance of showers and thunderstorms. Highs around 90. Lows in the mid 70s. Chance of rain 40 percent. Heat index values up to 105. Monday And Monday Night: Partly cloudy. A chance of showers and thunderstorms. Highs around 90. Lows in the mid 70s. Chance of rain 50 percent. Tuesday: Partly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent. Tuesday Night: Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the mid 70s. Chance of rain 40 percent. Wednesday: Partly sunny with a chance of showers. A slight chance of thunderstorms in the morning, then a chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent. | |
| Zone Forecast: Southeast Coastal St. Johns | |
Visit your local NWS office at: https://www.weather.gov/jax |