Jacksonville, FL – Scorching temperatures and rising humidity will create dangerous heat conditions across Jacksonville on Sunday, July 20th, with the National Weather Service warning of a heat index soaring to 109°F by mid-afternoon. Afternoon thunderstorms are also in the mix, bringing the risk of slick roads and sudden downpours, especially along I-95 and I-295.
According to the National Weather Service, Jacksonville remains under a heat advisory until 6:00 p.m. Sunday. Temperatures will climb to a high near 96°F, and the combination of heat and humidity will make it feel even hotter. Isolated thunderstorms could pop up after 4 p.m., possibly impacting travel and outdoor plans. Residents are urged to limit time outside, stay hydrated, and avoid non-essential travel during peak heat. If you must drive, use caution on major routes like I-95, as afternoon storms may reduce visibility and create hazardous conditions.
Looking ahead, the brutal heat won’t let up as the new week begins. Monday brings another day of steamy sunshine, with highs near 97°F and an increased chance of thunderstorms and heavy rain in the afternoon and evening. Tuesday and Wednesday continue the active pattern, with frequent showers and scattered storms expected each afternoon and evening. These storms may be strong at times, producing heavy rainfall and brief gusty winds.
The threat of afternoon storms and dangerous heat will persist through Friday, with no significant relief in sight. Stay tuned for updates as new advisories could be issued.
FIVE DAY BULLET POINT FORECAST FOR JACKSONVILLE, FL
- Sunday, July 20: Hot and humid. High 96°F. Heat index up to 109°F. Slight chance of showers and thunderstorms after 4 p.m.
- Monday, July 21: Mostly sunny, then showers and thunderstorms likely after 11 a.m. High 97°F. Chance of precipitation 60%.
- Tuesday, July 22: Showers and thunderstorms likely after 2 p.m. High 93°F. Rain chance 80%.
- Wednesday, July 23: Showers likely before 8 a.m., then thunderstorms possible through the day. High 89°F. Rain chance 80%.
- Thursday, July 24: Showers and thunderstorms likely. High 89°F. Rain chance 80%.
- Friday, July 25: Showers and thunderstorms likely. High near 92°F. Rain chance 60%.
