
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 >
Hazardous Weather Conditions
Current conditions at
Northeast Florida Regional Airport (KSGJ)
Lat: 29.96°NLon: 81.34°WElev: 3ft.
Fair
84°F
29°C
| Humidity | 77% |
| Wind Speed | W 8 mph |
| Barometer | 30.03 in (1017.0 mb) |
| Dewpoint | 76°F (24°C) |
| Visibility | 10.00 mi |
| Heat Index | 93°F (34°C) |
| Last update | 17 Aug 10:56 pm EDT |
Extended Forecast for
4 Miles N St. Augustine Airport FL
Extreme Heat Warning August 18, 11:00am until August 18, 08:00pm
Tonight

Low: 78 °F
Mostly Clear
Tuesday
High: 94 °F
Mostly Sunny
then Chance
T-stormsTuesday Night
Low: 78 °F
Chance
T-storms then
Mostly CloudyWednesday
High: 93 °F
Mostly Sunny
then Chance
T-stormsWednesday Night
Low: 78 °F
Chance
T-storms then
Partly CloudyThursday
High: 92 °F
Mostly Sunny
then Slight
Chance
T-stormsThursday Night

Low: 78 °F
Partly Cloudy
Friday
High: 91 °F
Sunny then
Chance
T-stormsFriday Night
Low: 77 °F
Chance
T-storms then
Partly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 78. West wind around 10 mph, with gusts as high as 16 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 114. West wind 9 to 11 mph, with gusts as high as 17 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 78. West wind 8 to 10 mph, with gusts as high as 16 mph.
Wednesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 111. West wind 7 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 16 mph.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 78. Southwest wind 6 to 13 mph, with gusts as high as 20 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.
Thursday Night
Partly cloudy, with a low around 78.
Friday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77.
Saturday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
4 Miles N St. Augustine Airport FL
30.02°N 81.34°W
30.02°N 81.34°W
8:07 pm EDT Aug 17, 2026
11pm EDT Aug 17, 2026-6pm EDT Aug 24, 2026



