Jacksonville, Florida – Thunderstorms will bring a double threat of high heat and potential afternoon downpours to Jacksonville on Thursday, July 17th, keeping drivers on edge and air conditioners running overtime. Expect possible delays along I-295 and I-10 as showers and storms roll through after 2 p.m., combining with oppressive humidity and heat index values soaring as high as 106°F.
According to the National Weather Service, Thursday brings a 60% chance of showers and thunderstorms, especially late in the day, with new rainfall amounts possible in thunderstorms.
Southeast winds between 7 and 10 mph may add to travel concerns. Residents are urged to limit outdoor activities, keep water handy, and monitor for changing weather conditions. Power outages and street flooding are possible where storms hit hardest.
Weather Outlook for the Weekend and Beyond
Friday’s weather keeps the pattern active with a 50% chance of afternoon storms and a high near 94°F. Sun dominates early, but clouds and storms could disrupt late-day plans.
Saturday brings similar risks—afternoon storms and a steamy high near 96°F. By Sunday, expect another round of scattered storms and a high near 97°F, making it one of the hottest days in the stretch.
Looking ahead, Monday and Tuesday both bring likely showers and storms with highs in the mid-90s, continuing the wet summer trend across Northeast Florida. Residents should stay alert for updated advisories and consider alternate routes if storms cause road flooding or delays.
Five-Day Jacksonville, FL Forecast (Thu, July 17 – Tue, July 22)
Thursday, July 17: Showers and storms likely after 2 p.m.; high 93°F, heat index to 106°F.
Friday, July 18: 50% chance of afternoon storms; high 94°F.
Saturday, July 19: Storms possible after 2 p.m.; high 96°F.
Sunday, July 20: Scattered storms, mostly after 2 p.m.; high 97°F.
Monday, July 21: Showers and storms likely, high 96°F.
Tuesday, July 22: Showers and storms likely, high 95°F.
