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

Extreme Heat Risk this Week

Extreme heat and little overnight relief will lead to an extreme risk for heat-related impacts through the rest of the week. Extreme Heat Warning in effect on Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Jacksonville International Airport (KJAX)

Lat: 30.5°NLon: 81.69°WElev: 23ft.

Mostly Cloudy

88°F

31°C

Humidity 70%
Wind Speed S 3 mph
Barometer 29.94 in (1013.7 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 19 Aug 8:56 pm EDT
Extended Forecast for

Hilliard FL

Heat Advisory August 20, 11:00am until August 20, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Mostly clear, with a low around 73. Light west wind.

    Low: 73 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 97 °F

    Sunny then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 74. South wind around 6 mph becoming calm in the evening.

    Low: 74 °F

    Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Showers and thunderstorms likely after 2pm. Increasing clouds and hot, with a high near 95. Heat index values as high as 105. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%.

    High: 95 °F

    Sunny then
    T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 72 °F

    T-storms
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: Showers and thunderstorms likely after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 70%.

    High: 92 °F

    Mostly Sunny
    then T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

    Low: 71 °F

    T-storms
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 71.

    Low: 71 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 73. Light west wind.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 74. South wind around 6 mph becoming calm in the evening.
Friday
Showers and thunderstorms likely after 2pm. Increasing clouds and hot, with a high near 95. Heat index values as high as 105. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%.
Friday Night
Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms likely after 2pm. Partly sunny, with a high near 92. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Sunday
A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 71.
Monday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Hilliard FL
 30.68°N 81.9°W
Last Update:
8:01 pm EDT Aug 19, 2026
Forecast Valid:
9pm EDT Aug 19, 2026-6pm EDT Aug 26, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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