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

Hazardous Weather Conditions

Current conditions at

Jacksonville International Airport (KJAX)

Lat: 30.5°NLon: 81.69°WElev: 23ft.

Mostly Cloudy

79°F

26°C

Humidity 90%
Wind Speed Calm
Barometer 30.15 in (1020.9 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 14 Aug 9:56 pm EDT
Extended Forecast for

Jacksonville International Airport FL

Heat Advisory August 15, 11:00am until August 15, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 76. Southwest wind 3 to 5 mph.

    Low: 76 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 93. Heat index values as high as 107. Southwest wind 3 to 5 mph.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 75. South wind around 6 mph becoming light and variable in the evening.

    Low: 75 °F

    Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 2pm. Increasing clouds and hot, with a high near 95. Heat index values as high as 105. West wind 5 to 7 mph.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. West wind 5 to 7 mph.

    Low: 76 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 95.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77.

    Low: 77 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97.

    High: 97 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 77.

    Low: 77 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 76. Southwest wind 3 to 5 mph.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 93. Heat index values as high as 107. Southwest wind 3 to 5 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 75. South wind around 6 mph becoming light and variable in the evening.
Sunday
A 30 percent chance of showers and thunderstorms after 2pm. Increasing clouds and hot, with a high near 95. Heat index values as high as 105. West wind 5 to 7 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. West wind 5 to 7 mph.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 95.
Monday Night
A 10 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77.
Tuesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 97.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 77.
Wednesday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 96.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 96.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Jacksonville International Airport FL
 30.5°N 81.68°W
Last Update:
8:46 pm EDT Aug 14, 2026
Forecast Valid:
10pm EDT Aug 14, 2026-6pm EDT Aug 21, 2026
 
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