Jacksonville rolled into Monday, June 29, 2026, under sticky, mostly clear skies, with KNIP clocking in around 79°F and humidity hanging in the mid 80s. A Heat Advisory is in effect for much of northeast Florida and southeast Georgia from noon to 7 p.m., and inland temperatures are expected to push toward 97°F. Factor in the humidity and it will feel more like 105–109°F for many. A few late-day showers or thunderstorms could pop up, but for most people the main concern will be the dangerous afternoon heat. Anyone heading to the beach should also keep an eye on an elevated rip current risk through the week.
Afternoon Heat and Storms
Afternoon plans are going to feel toasty. Forecasters expect a mostly sunny, hot day with highs near 97°F and a roughly 30% chance of showers and thunderstorms after about 2 p.m. Winds out of the northwest will stay light, near 3–8 mph, which means any storms that do form could creep along and dump brief heavy rain with some gusty winds. According to the National Weather Service, heat index values are on track to reach about 106–109°F across many inland neighborhoods this afternoon. If you have outdoor errands or work to do, this is a good day to time them for the morning or early evening and keep checking real-time conditions.
Tonight And Midweek Outlook
Tonight stays on the warm and muggy side, with lows near 78°F. There will be a lingering 30–40% chance of showers and storms early in the evening that should wind down after about 11 p.m. Tuesday looks a touch less intense heat wise, with highs near 92°F and a lower overall storm chance, though northeast winds could pick up into the mid teens with gusts around 18 mph. The City of Jacksonville has an activation plan and a list of cooling locations available during heat events; check Stay Cool Jax for details and hours if you or neighbors need a place to cool down. Through midweek, it is smart to keep strenuous outdoor activity out of the noon to 7 p.m. window whenever you can.
Beach And River Notes
Rip currents are a concern at northeast Florida beaches today and are expected to become more hazardous on Tuesday as onshore winds increase. Swimmers should pay attention to local surf reports and follow lifeguard instructions, even if the water looks inviting. Minor flooding is ongoing along lower portions of the Satilla River near Atkinson, so residents and boaters in that basin should stay alert for higher water levels and subtle changes in river conditions. If you are heading for the coast, account for both the heat and the chance of brief storms that can quickly drop visibility and kick up the waves.
Heat Safety Basics
Hydration is your best friend today. Drink water regularly, skip heavy exertion during the midday peak, and take frequent breaks in air conditioned spaces if you have to be outside. Check on older adults, young children, and neighbors who might not have reliable cooling at home, and bring pets indoors for the hottest stretch of the day. Know the red flags for heat stroke, including confusion, loss of consciousness, or a very high body temperature. If someone shows those symptoms, call 911 right away.
This story will be updated if the National Weather Service issues new advisories or warnings for the area. For the latest hourly conditions and any changes to today’s Heat Advisory, keep an eye on local forecasts and public safety updates through the afternoon.
