National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Northeast Florida Regional Airport (KSGJ)

Lat: 29.96°NLon: 81.34°WElev: 3ft.

Partly Cloudy

88°F

31°C

Humidity 68%
Wind Speed SW 8 mph
Barometer 29.99 in (1015.7 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 17 Jun 12:56 pm EDT
Extended Forecast for

Saint Augustine FL

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a steady temperature around 89. Heat index values as high as 100. West wind around 10 mph, with gusts as high as 16 mph.

    High: 89 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 79. South wind around 7 mph.

    Low: 79 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 2pm. Sunny, then becoming mostly cloudy during the afternoon, with a high near 92. Heat index values as high as 106. South wind 8 to 11 mph, with gusts as high as 16 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 78. South wind around 8 mph.

    Low: 78 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Juneteenth

    Juneteenth: Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 91. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 91 °F

    Slight Chance
    T-storms then
    T-storms
    Likely and
    Breezy

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 11pm, then a slight chance of showers after 11pm. Mostly cloudy, with a low around 77. Chance of precipitation is 60%.

    Low: 77 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers and thunderstorms after 11am. High near 88. Chance of precipitation is 80%.

    High: 88 °F

    Chance
    T-storms then
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms, mainly before 8pm. Low around 76. Chance of precipitation is 80%.

    Low: 76 °F

    T-storms then
    Slight Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a steady temperature around 89. Heat index values as high as 100. West wind around 10 mph, with gusts as high as 16 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 79. South wind around 7 mph.
Thursday
A 50 percent chance of showers and thunderstorms after 2pm. Sunny, then becoming mostly cloudy during the afternoon, with a high near 92. Heat index values as high as 106. South wind 8 to 11 mph, with gusts as high as 16 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 78. South wind around 8 mph.
Juneteenth
Showers and thunderstorms likely, mainly between 2pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 91. Breezy, with a southwest wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a slight chance of showers and thunderstorms between 8pm and 11pm, then a slight chance of showers after 11pm. Mostly cloudy, with a low around 77. Chance of precipitation is 60%.
Saturday
A chance of showers, then showers and thunderstorms after 11am. High near 88. Chance of precipitation is 80%.
Saturday Night
Showers and thunderstorms, mainly before 8pm. Low around 76. Chance of precipitation is 80%.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77.
Monday
Sunny, with a high near 92.
Monday Night
Partly cloudy, with a low around 78.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Augustine FL
 29.9°N 81.3°W
Last Update:
2:21 pm EDT Jun 17, 2026
Forecast Valid:
2pm EDT Jun 17, 2026-6pm EDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation