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

Severe Thunderstorms Possible From The Plains To The Great Lakes, Heat Wave To Continue Over The Southern U.S.

Scattered strong to severe thunderstorms capable of damaging winds, large hail, isolated tornadoes, and heavy rainfall will be possible through tonight from the central Plains to the Great Lakes and Northeast U.S. The heavy rainfall could lead to localized flash flooding. Excessive heat will persist across the southern Plains and Desert Southwest early this week. Read More >

Current conditions at

Northeast Florida Regional Airport (KSGJ)

Lat: 29.96°NLon: 81.34°WElev: 3ft.

Fair

30°C

86°F

Humidity 65%
Wind Speed SW 13 km/h
Barometer 1019.7 mb (30.12 in)
Dewpoint 23°C (73°F)
Visibility 16 km
Heat Index34°C (93°F)
Last update 18 Aug 12:56 pm EDT
Extended Forecast for

Saint Augustine FL

  • This
    Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 31. Southwest wind 5 to 8 km/h. Chance of precipitation is 70%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Showers
    Likely

    High: 31 °C

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 23. South wind around 11 km/h. Chance of precipitation is 40%.

    Chance
    Showers then
    Mostly Cloudy

    Low: 23 °C

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 32. Southwest wind 5 to 11 km/h becoming southeast in the afternoon.

    Chance
    Showers then
    Chance
    T-storms

    High: 32 °C

  • Monday
    Night

    Monday Night: A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 24. Southeast wind 8 to 16 km/h.

    Chance
    T-storms then
    Chance
    Showers

    Low: 24 °C

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 31. South wind 5 to 14 km/h becoming east in the afternoon. Chance of precipitation is 70%.

    Mostly Sunny
    then Showers
    Likely

    High: 31 °C

  • Tuesday
    Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.

    Showers
    Likely then
    Chance
    T-storms

    Low: 23 °C

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 32.

    Chance
    T-storms then
    Chance
    Showers

    High: 32 °C

  • Wednesday
    Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 23.

    Chance
    T-storms

    Low: 23 °C

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 32.

    Chance
    T-storms

    High: 32 °C

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3pm. Mostly cloudy, with a high near 31. Southwest wind 5 to 8 km/h. Chance of precipitation is 70%. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Tonight
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and midnight. Mostly cloudy, with a low around 23. South wind around 11 km/h. Chance of precipitation is 40%.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 32. Southwest wind 5 to 11 km/h becoming southeast in the afternoon.
Monday Night
A 40 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 24. Southeast wind 8 to 16 km/h.
Tuesday
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 31. South wind 5 to 14 km/h becoming east in the afternoon. Chance of precipitation is 70%.
Tuesday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 23. Chance of precipitation is 60%.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 32.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 23.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 32.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 24.
Friday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 32.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 24.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 31. Chance of precipitation is 60%.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Saint Augustine FL
 29.9°N 81.33°W
Last Update:
1:18 pm EDT Aug 18, 2019
Forecast Valid:
1pm EDT Aug 18, 2019-6pm EDT Aug 24, 2019
 
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