Extreme and Dangerous Heat this Week - Updated Briefing

A heat wave continues across the southeast, with dangerous heat continuing throughout our region this week. It only takes minutes for the cabin of a vehicle to become deadly! Look before you Lock and Stay Cool! Read More >

Hazardous Weather Conditions

Heat Advisory in effect from July 31, 11:00 AM EDT until July 31, 07:00 PM EDT

Current conditions at

Northeast Florida Regional Airport (KSGJ)

Lat: 29.96°NLon: 81.34°WElev: 3ft.

Overcast

82°F

28°C

Humidity	79%
Wind Speed	SW 5 mph
Barometer	30.05 in (1017.5 mb)
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	89°F (32°C)
Last update	30 Jul 10:56 pm EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Saint Augustine FL

Heat Advisory July 31, 11:00am until July 31, 07:00pm

Click here for hazard details and duration

Heat Advisory

Tonight
Low: 79 °F
Partly Cloudy
Thursday
High: 93 °F
Sunny then
Slight Chance
T-storms
Thursday Night
Low: 78 °F
Partly Cloudy
Friday
High: 94 °F
Sunny then
Slight Chance
T-storms
Friday Night
Low: 78 °F
Slight Chance
T-storms then
Partly Cloudy
Saturday
High: 92 °F
Slight Chance
T-storms then
T-storms
Likely
Saturday Night
Low: 76 °F
T-storms
Likely then
Showers
Likely
Sunday
High: 87 °F
Chance
T-storms then
T-storms
Sunday Night
Low: 76 °F
T-storms then
Chance
T-storms

Detailed Forecast

Tonight

Partly cloudy, with a low around 79. Southwest wind around 6 mph.

Thursday

A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Heat index values as high as 109. West wind 6 to 10 mph becoming southeast in the afternoon.

Thursday Night

Partly cloudy, with a low around 78. South wind 5 to 10 mph becoming west after midnight.

Friday

A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 105. West wind 6 to 10 mph.

Friday Night

A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 78. South wind 8 to 10 mph becoming west after midnight.

Saturday

A slight chance of showers, then showers and thunderstorms likely after 11am. Mostly sunny, with a high near 92. Chance of precipitation is 70%.

Saturday Night

Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.

Sunday

A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 87. Chance of precipitation is 80%.

Sunday Night

Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a slight chance of showers after 2am. Low around 76. Chance of precipitation is 80%.

Monday

A slight chance of showers, then showers and thunderstorms likely after 8am. Mostly sunny, with a high near 89. Chance of precipitation is 70%.

Monday Night

Showers and thunderstorms likely. Partly cloudy, with a low around 77. Chance of precipitation is 60%.

Tuesday

Showers and thunderstorms likely. Mostly sunny, with a high near 89. Chance of precipitation is 70%.

Tuesday Night

Showers and thunderstorms likely. Partly cloudy, with a low around 77. Chance of precipitation is 60%.

Wednesday

Showers and thunderstorms likely. Mostly sunny, with a high near 89. Chance of precipitation is 60%.