JACKSONVILLE, Florida – The National Weather Service in Jacksonville has issued a Heat Advisory and Thunderstorm Outlook for Sunday, July 5, 2026.
Heat indices are expected to reach 105-110°F today across the coast and St. Johns River basin, with isolated stronger thunderstorms possible near the I-95 corridor to the coast this afternoon and evening.
A Heat Advisory is in effect through 7 PM today due to dangerous heat and humidity. Thunderstorm activity is expected to develop this afternoon and continue through the evening. The strongest storms are anticipated near the I-95 corridor to the coast…