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

East Coast Flash Flood/Severe Thunderstorm Threat Monday

A cold front and waves of low pressure will slowly shift across the Mid-Atlantic and Southeast states Monday and Tuesday. Heavy thunderstorms along this front may produce heavy rain and flash flooding with the highest threat Monday from Tennessee into New England. A few strong to severe thunderstorms are also possible mainly from Northern Maryland to southern New Jersey. Read More >

Current conditions at

Northeast Florida Regional Airport (KSGJ)

Lat: 29.96°NLon: 81.34°WElev: 3ft.

Fair

76°F

24°C

Humidity 88%
Wind Speed Calm
Barometer 30.06 in (1017.8 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 22 Jul 7:56 am EDT
Extended Forecast for

Saint Augustine FLSimilar City Names

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 90. Heat index values as high as 101. Light south wind becoming southeast 8 to 13 mph in the morning.

    Mostly Sunny
    then Chance
    T-storms

    High: 90 °F

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 75. Southeast wind 5 to 9 mph.

    Chance
    T-storms then
    Partly Cloudy

    Low: 75 °F

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly after 5pm. Mostly sunny, with a high near 91. Heat index values as high as 100. Light and variable wind becoming southeast 5 to 10 mph in the morning. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Slight Chance
    T-storms then
    T-storms
    Likely

    High: 91 °F

  • Tuesday
    Night

    Tuesday Night: Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 77. South wind 7 to 9 mph becoming southwest after midnight. Chance of precipitation is 60%.

    T-storms
    Likely then
    Chance
    Showers

    Low: 77 °F

  • Wednesday

    Wednesday: Showers and thunderstorms. High near 89. Southwest wind 6 to 10 mph. Chance of precipitation is 80%.

    T-storms

    High: 89 °F

  • Wednesday
    Night

    Wednesday Night: Showers and thunderstorms, mainly before 8pm. Low around 77. Chance of precipitation is 80%.

    T-storms then
    Chance
    T-storms

    Low: 77 °F

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 8am, then showers and thunderstorms after 8am. High near 88. Chance of precipitation is 90%.

    T-storms

    High: 88 °F

  • Thursday
    Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Cloudy, with a low around 76.

    Chance
    T-storms

    Low: 76 °F

  • Friday

    Friday: Showers and thunderstorms. High near 89. Chance of precipitation is 80%.

    T-storms

    High: 89 °F

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 90. Heat index values as high as 101. Light south wind becoming southeast 8 to 13 mph in the morning.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 75. Southeast wind 5 to 9 mph.
Tuesday
Showers and thunderstorms likely, mainly after 5pm. Mostly sunny, with a high near 91. Heat index values as high as 100. Light and variable wind becoming southeast 5 to 10 mph in the morning. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 77. South wind 7 to 9 mph becoming southwest after midnight. Chance of precipitation is 60%.
Wednesday
Showers and thunderstorms. High near 89. Southwest wind 6 to 10 mph. Chance of precipitation is 80%.
Wednesday Night
Showers and thunderstorms, mainly before 8pm. Low around 77. Chance of precipitation is 80%.
Thursday
Showers and possibly a thunderstorm before 8am, then showers and thunderstorms after 8am. High near 88. Chance of precipitation is 90%.
Thursday Night
A 50 percent chance of showers and thunderstorms. Cloudy, with a low around 76.
Friday
Showers and thunderstorms. High near 89. Chance of precipitation is 80%.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.
Saturday
Showers and thunderstorms likely. Partly sunny, with a high near 88. Chance of precipitation is 70%.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77.
Sunday
Showers and thunderstorms likely. Mostly cloudy, with a high near 89. Chance of precipitation is 60%.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Saint Augustine FLSimilar City Names
 29.9°N 81.33°W
Last Update:
7:17 am EDT Jul 22, 2019
Forecast Valid:
8am EDT Jul 22, 2019-6pm EDT Jul 28, 2019
 
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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