Extreme Heat Warning EXTREME HEAT WARNING - Jacksonville

NWS Southeast Regional Radar WU South East Satellite
Radar/Satellite images courtesy of NOAA/NWS and Weather Underground.
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Updated: @ 28-Jul-2026 6:00pm  
Summary / Temperature Wind Rain Outlook
Few Clouds Few Clouds
Currently: 97.0, Max: 99.0, Min: 78.8 97°F
Colder 0.9°F than last hour.

Heat Danger

Feels like: 117°F

24-hr difference
37.6°FWarmer 37.6°F than yesterday at this time.
  Today Yesterday
High: 99°F
4:01pm
94.5°F
1:19pm
Low: 78.8°F
6:39am
80.6°F
6:57am
 Wind from SSW SSW
2.5
Gust:
5.6 mph
1 Bft - Light air
Today: 9.2 mph 5:16pm
Gust Month: 38.9 mph July 14
Rain Today: 0 in
Rain Rate (/hr): 0 in
Rain Yesterday: 0.03 in
This Month: 2.15 in
Season Total: 15.15 in
Tonight

Tonight: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Humidity & Barometer Almanac Moon
Humidity: 51 % Increased 2.0% since last hour.
Dew Point: 75.7°F Increased 0.3°F since last hour.
Barometer: 29.58 inHg Falling 0.04  inHg/hr
Baro Trend: Falling Slowly
Sunrise: 6:42am
Sunset: 8:22pm
Moonset: 6:33am
Moonrise: 8:40pm
Full Moon
Full Moon, Moon at 14 days in cycle
100%
Illuminated
UV Index Solar Radiation
   2.2     Low 
High: 9.4 @ 1:04pm
204 W/m2 (19 %)
High: 851 @  1:04pm
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Chance Showers And Thunderstorms
Chance Showers And T-Storms

Hi 99 °F
NWS forecast: A chance of showers and thunderstorms after 4pm. Partly sunny. High near 99, with temperatures falling to around 97 in the afternoon. Heat index values as high as 114. Southwest wind around 13 mph, with gusts as high as 18 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
 
Tonight

Tonight: Chance Showers And Thunderstorms
Chance Showers And T-Storms

Lo 78 °F
NWS forecast: A chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely between 8pm and 9pm, then a chance of showers and thunderstorms between 9pm and 11pm, then a chance of showers and thunderstorms between 11pm and 1am, then a slight chance of showers and thunderstorms between 1am and 2am, then a chance of showers and thunderstorms between 2am and 3am. Mostly cloudy. Low around 78, with temperatures rising to around 80 overnight. Heat index values as high as 106. Southwest wind 9 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible.