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Hazardous Weather Conditions
Current conditions at
Northeast Florida Regional Airport (KSGJ)
Lat: 29.96°NLon: 81.34°WElev: 3ft.
Fair
87°F
31°C
| Humidity | 72% |
| Wind Speed | E 6 mph |
| Barometer | 30.20 in (1022.7 mb) |
| Dewpoint | 77°F (25°C) |
| Visibility | 10.00 mi |
| Heat Index | 99°F (37°C) |
| Last update | 15 Aug 11:56 am EDT |
Extended Forecast for
Saint Augustine FL
Heat Advisory August 16, 11:00am until August 16, 08:00pm
Heat Advisory August 15, 12:47pm until August 15, 08:00pm
NOW until 8:00pm Sat

Heat Advisory
This Afternoon

High: 93 °F
Slight Chance
T-stormsTonight

Low: 77 °F
Partly Cloudy
Sunday
High: 95 °F
Mostly Sunny
then Slight
Chance
T-stormsSunday Night
Low: 77 °F
Slight Chance
T-storms then
Partly CloudyMonday
High: 97 °F
Mostly Sunny
then Chance
T-stormsMonday Night
Low: 79 °F
Chance
T-storms then
Slight Chance
ShowersTuesday
High: 98 °F
Sunny then
Chance
T-stormsTuesday Night

Low: 78 °F
Chance
T-storms
Detailed Forecast
This Afternoon
A 10 percent chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 93. Heat index values as high as 109. Southwest wind 7 to 10 mph becoming east. Winds could gust as high as 16 mph.
Tonight
Partly cloudy, with a low around 77. Southwest wind 5 to 10 mph, with gusts as high as 16 mph.
Sunday
A 10 percent chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 110. West wind 6 to 9 mph becoming south in the afternoon.
Sunday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77. South wind 6 to 9 mph becoming west after midnight.
Monday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97. West wind 7 to 10 mph, with gusts as high as 16 mph.
Monday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 79. Chance of precipitation is 30%.
Tuesday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 98.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 78.
Wednesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 77.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Saint Augustine FL
29.9°N 81.33°W
29.9°N 81.33°W
11:56 am EDT Aug 15, 2026
12pm EDT Aug 15, 2026-6pm EDT Aug 21, 2026



