| NWS Forecast for: Western St. Johns Issued by: National Weather Service Jacksonville, FL Last Update: 222 PM EDT Sat Aug 8 2026 | |
| This Afternoon: Showers and thunderstorms likely. Some thunderstorms may produce heavy rainfall. Highs in the lower 90s. East winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent. Heat index values up to 105. Tonight: Mostly cloudy. A chance of showers and thunderstorms in the evening. Some thunderstorms may produce heavy rainfall in the evening. Lows in the mid 70s. Southeast winds 10 to 15 mph. Chance of rain 50 percent. Sunday: Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. South winds 5 to 10 mph. Chance of rain 40 percent. Heat index values up to 109. Sunday Night: Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 70s. Southeast winds 5 to 10 mph. Chance of rain 30 percent. Monday: Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. South winds 5 to 10 mph. Chance of rain 30 percent. Heat index values up to 109. Monday Night: Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the upper 70s. Chance of rain 30 percent. Tuesday: Sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 110. Tuesday Night: Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the upper 70s. Chance of rain 20 percent. Wednesday Through Thursday Night: Mostly clear with a slight chance of showers and thunderstorms. Highs in the mid 90s. Lows in the upper 70s. Chance of rain 20 percent. Heat index values up to 110. Friday: Sunny. Highs in the mid 90s. Heat index values up to 110. | |
| Zone Forecast: Western St. Johns | |
Visit your local NWS office at: https://www.weather.gov/jax |