Jacksonville, FL – Residents should prepare for a significant shift in weather starting Wednesday, as high heat and afternoon thunderstorms settle in for a multi-day pattern. The heat will be a primary concern, with temperatures climbing into the mid-90s, creating potentially dangerous conditions for outdoor activities.
According to the National Weather Service in Jacksonville, a 30 percent chance of showers and thunderstorms will develop after 4 p.m. on Wednesday. The high temperature is expected to reach near 94 degrees, though the heat index could make it feel closer to 102. South winds will be present at 6 to 8 mph. Drivers on major roadways like I-95 and I-10 should remain alert for sudden downpours and slick conditions during the late afternoon.
The pattern of hot and stormy afternoons continues into the Juneteenth holiday on Thursday. A similar 30 percent chance of showers and thunderstorms is expected, mainly after 2 p.m., with a high near 94. Residents with outdoor plans should have a way to move indoors quickly if storms develop. It is wise to stay hydrated and take frequent breaks from the sun to avoid heat-related illness.
The threat of rain increases toward the weekend. Friday brings a 60 percent chance of showers and thunderstorms, likely after 2 p.m. These conditions will likely impact evening commutes and any early weekend plans. The wet pattern is expected to continue into Saturday and Sunday, with scattered storms possible each afternoon. Temperatures will remain hot, hovering in the low 90s throughout the weekend.
Five-Day Jacksonville Forecast
- Tuesday: A 40 percent chance of showers and thunderstorms, mainly after 2 p.m. Mostly sunny, with a high near 93. Heat index values as high as 103.
- Wednesday: A 30 percent chance of showers and thunderstorms after 4 p.m. Mostly sunny, with a high near 94. Heat index values as high as 102.
- Thursday (Juneteenth): A 30 percent chance of showers and thunderstorms after 2 p.m. Mostly sunny, with a high near 94.
- Friday: Showers and thunderstorms likely, mainly after 2 p.m. The chance of precipitation is 60%. Mostly cloudy, with a high near 93.
- Saturday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 92.
