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St Augustine Weather Forecast
| REST OF TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
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| Mostly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Lo: 75°FLo: 24°C | Hi: 89°FHi: 32°C | Lo: 75°FLo: 24°C | Hi: 91°FHi: 33°C | Lo: 75°FLo: 24°C | Hi: 89°FHi: 32°C | Lo: 75°FLo: 24°C | Hi: 85°FHi: 29°C Lo: 75°FLo: 24°C | Hi: 85°FHi: 29°C Lo: 75°FLo: 24°C | Hi: 85°FHi: 29°C | Lo: 75°FLo: 24°C | Hi: 85°FHi: 29°C Lo: 75°FLo: 24°C |
| POP: 50% | POP: 30% | POP: 70% | POP: 60% | POP: 80% | POP: 80% | POP: 70% | POP: 70% | POP: 50% | POP: 50% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 222 AM EDT Sat Sep 05 2026 
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Issued: 157 AM EDT Sat Sep 5 2026
Key Messages
For the latest NE FL and SE GA Daily Key Messages please visit: https:/www.weather.gov/media/jax/briefings/nws-jax-briefing.pdf- Moderate Rip Current Risk through the Weekend
- Daily Heat Index near 105 through the Weekend
- Daily Thunderstorms. Severe Storm Risk Sunday. Localized Flood Risk through Monday. Possible localized flooding in poor drainage or urban locations
- Patchy Inland Late Night & Early Morning Fog
Aviation
/06Z SATURDAY THROUGH 06Z SUNDAY/...
Convection has come to an end to...