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 Details for Jacksonville Heat Advisory  +1 additional alert

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Heat Advisory HEAT ADVISORY - Jacksonville
Extreme Heat Watch EXTREME HEAT WATCH - 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 4:34pm  
Summary / Temperature Wind Rain Outlook
Clear Clear
Currently: 98.1, Max: 99.0, Min: 78.8 98.1°F
Warmer 0.2°F than last hour.

Heat Danger

Feels like: 119°F

24-hr difference
37.9°FWarmer 37.9°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 W W
3.6
Gust:
 8.3 mph
1 Bft - Light air
Today: 8.7 mph 3:45pm
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: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy
Humidity & Barometer Almanac Moon
Humidity: 50 % Increased 2.0% since last hour.
Dew Point: 76.3°F Increased 1.5°F since last hour.
Barometer: 29.65 inHg Falling 0.07 inHg/hr
Baro Trend: Falling Rapidly
Sunrise: 6:42am
Sunset: 8:23pm
Moonset: 5:35am
Moonrise: 8:05pm
Full Moon
Full Moon, Moon at 13 days in cycle
99%
Illuminated
UV Index Solar Radiation
   5.8     Medium 
High: 9.4 @ 1:04pm
523 W/m2 (49 %)
High: 851 @  1:04pm
 NWS Weather Forecast  - Outlook: This Afternoon & Tonight
This
Afternoon
This Afternoon: Slight Chance Showers And Thunderstorms
Slight Chance Showers And T-Storms

Hi 98 °F		 NWS forecast: A slight chance of showers and thunderstorms after 4pm. Mostly sunny. High near 98, with temperatures falling to around 97 in the afternoon. Heat index values as high as 110. Southwest wind around 12 mph, with gusts as high as 17 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
 
Tonight

Tonight: Slight Chance Showers And Thunderstorms then Partly Cloudy
Slight Chance Showers And T-Storms then Partly Cloudy

Lo 79 °F		 NWS forecast: A slight chance of showers and thunderstorms before 7pm. Partly cloudy. Low around 79, with temperatures rising to around 80 overnight. Heat index values as high as 105. Southwest wind around 12 mph, with gusts as high as 17 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.