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

Current conditions at

Jacksonville Naval Air Station (KNIP)

Lat: 30.23°NLon: 81.67°WElev: 10ft.

Thunderstorm

87°F

31°C

Humidity	67%
Wind Speed	E 10 mph
Barometer	29.97 in (1014.4 mb)
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	96°F (36°C)
Last update	30 Jul 6:53 pm EDT

More Information:

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

Extended Forecast for

St Johns FL

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

Click here for hazard details and duration

Heat Advisory

Tonight
Low: 78 °F
Chance
T-storms then
Partly Cloudy
Thursday
High: 98 °F
Sunny then
Chance
Showers
Thursday Night
Low: 77 °F
Partly Cloudy
Friday
High: 100 °F
Sunny then
Chance
T-storms
Friday Night
Low: 78 °F
Chance
T-storms then
Partly Cloudy
Saturday
High: 96 °F
Chance
T-storms then
T-storms
Saturday Night
Low: 76 °F
T-storms then
Showers
Likely
Sunday
High: 90 °F
Showers
Likely then
T-storms
Sunday Night
Low: 76 °F
T-storms then
Chance
T-storms

Detailed Forecast

Tonight

A 50 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, with a low around 78. South wind around 7 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday

A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 113. West wind 6 to 8 mph.

Thursday Night

Partly cloudy, with a low around 77. West wind 6 to 8 mph.

Friday

A 30 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 100. Heat index values as high as 110. West wind 6 to 9 mph.

Friday Night

A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 78. Southwest wind 6 to 8 mph.

Saturday

A chance of showers, then showers and thunderstorms after 11am. High near 96. Chance of precipitation is 80%.

Saturday Night

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

Sunday

A slight chance of showers before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms after 2pm. High near 90. Chance of precipitation is 90%.

Sunday Night

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

Monday

Showers and thunderstorms, mainly after 2pm. High near 92. Chance of precipitation is 80%.

Monday Night

Showers and thunderstorms. Low around 77. Chance of precipitation is 80%.

Tuesday

Showers and thunderstorms. High near 94. Chance of precipitation is 80%.

Tuesday Night

Showers and thunderstorms. Low around 76. Chance of precipitation is 80%.

Wednesday

Showers and thunderstorms likely. Mostly sunny and hot, with a high near 95. Chance of precipitation is 70%.