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

Hazardous Weather Conditions

Current conditions at

Northeast Florida Regional Airport (KSGJ)

Lat: 29.96°NLon: 81.34°WElev: 3ft.

Mostly Cloudy

87°F

31°C

Humidity 72%
Wind Speed E 14 mph
Barometer 29.95 in (1014.1 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 18 Aug 5:56 pm EDT
Extended Forecast for

St. Augustine Airport FL

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 79. East wind 8 to 14 mph, with gusts as high as 21 mph.

    Low: 79 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Sunny, with a high near 89. Heat index values as high as 103. Breezy, with a northeast wind 9 to 16 mph, with gusts as high as 24 mph.

    High: 89 °F

    Sunny then
    Chance
    T-storms and
    Breezy

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 5am, then a chance of showers and thunderstorms after 5am. Mostly clear, with a low around 78. Northeast wind 8 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 30%.

    Low: 78 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 11am, then showers likely and possibly a thunderstorm after 11am. Sunny, with a high near 89. Heat index values as high as 101. Breezy, with a north wind 11 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 89 °F

    Showers
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of thunderstorms before 8pm. Mostly clear, with a low around 76. North wind 5 to 7 mph becoming west after midnight. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms then
    Mostly Clear

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 91.

    High: 91 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly clear, with a low around 76. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms

  • Friday

    Friday: A slight chance of showers, then showers and thunderstorms likely after 8am. Sunny, with a high near 90. Chance of precipitation is 70%.

    High: 90 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 2am, then a chance of showers. Partly cloudy, with a low around 76. Chance of precipitation is 60%.

    Low: 76 °F

    T-storms
    Likely

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 79. East wind 8 to 14 mph, with gusts as high as 21 mph.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Sunny, with a high near 89. Heat index values as high as 103. Breezy, with a northeast wind 9 to 16 mph, with gusts as high as 24 mph.
Tuesday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 5am, then a chance of showers and thunderstorms after 5am. Mostly clear, with a low around 78. Northeast wind 8 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 30%.
Wednesday
Showers likely and possibly a thunderstorm before 8am, then showers likely between 8am and 11am, then showers likely and possibly a thunderstorm after 11am. Sunny, with a high near 89. Heat index values as high as 101. Breezy, with a north wind 11 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of thunderstorms before 8pm. Mostly clear, with a low around 76. North wind 5 to 7 mph becoming west after midnight. Chance of precipitation is 30%.
Thursday
A 50 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 91.
Thursday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly clear, with a low around 76. Chance of precipitation is 30%.
Friday
A slight chance of showers, then showers and thunderstorms likely after 8am. Sunny, with a high near 90. Chance of precipitation is 70%.
Friday Night
Showers and thunderstorms likely before 2am, then a chance of showers. Partly cloudy, with a low around 76. Chance of precipitation is 60%.
Saturday
A chance of showers, then showers and thunderstorms likely after 8am. Mostly sunny, with a high near 88. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.
Sunday
Showers and thunderstorms likely. Mostly sunny, with a high near 88. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 75. Chance of precipitation is 60%.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
St. Augustine Airport FL
 29.97°N 81.35°W
Last Update:
6:36 pm EDT Aug 18, 2025
Forecast Valid:
6pm EDT Aug 18, 2025-6pm EDT Aug 25, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation