Extreme Heat Risk this Week
Extreme heat and little overnight relief will lead to an extreme risk for heat-related impacts through the rest of the week. Extreme Heat Warning in effect on Tuesday. Read More >
| NWS Forecast for: Coastal waters from St. Augustine to Flagler Beach FL out 20 NM (AMZ454) Issued by: National Weather Service Jacksonville, FL Last Update: 225 AM EDT Thu Aug 20 2026 |  |
| Rest Of Tonight: West winds around 10 knots. Seas 2 to 3 feet. Wave detail: southwest 2 feet at 3 seconds and east 2 feet at 9 seconds. Intracoastal waters light chop. Thursday: Southwest winds 5 to 10 knots, becoming southeast 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 3 seconds and east 2 feet at 9 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the afternoon. Thursday Night: South winds 10 to 15 knots, becoming southwest 5 to 10 knots after midnight. Seas 2 to 3 feet. Wave detail: south 2 feet at 4 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the evening. Friday: Southwest winds 5 to 10 knots, becoming south 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 4 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the afternoon. Friday Night: Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Wave detail: southeast 3 feet at 4 seconds. Intracoastal waters a moderate chop. A slight chance of showers and thunderstorms in the evening. Saturday: Southwest winds 5 to 10 knots, becoming south 10 to 15 knots in the afternoon. Seas 2 to 3 feet. Wave detail: southeast 2 feet at 5 seconds. Intracoastal waters a moderate chop. Showers likely with a chance of thunderstorms in the afternoon. Saturday Night: Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A chance of showers and thunderstorms in the evening. Sunday Through Monday: Southwest winds 10 to 15 knots. Seas 2 to 3 feet. Intracoastal waters a moderate chop. A chance of showers and thunderstorms. winds and waves higher in and near thunderstorms. | |
| Zone Forecast: Coastal waters from St. Augustine to Flagler Beach FL out 20 NM (AMZ454) | |
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