Monday, June 22, 2026, started off muggy in Jacksonville, with partly cloudy skies, temperatures in the mid-70s, and humidity pushing close to 90 percent. By afternoon, highs are expected to climb into the low 90s, with the heat index potentially nearing 105°F. Showers and scattered thunderstorms are on the table after noon, which means outdoor plans and the afternoon commute could run into sudden downpours and gusty winds.
Afternoon Storms And Hazards
The most active storm window looks to be between about 2 and 8 p.m., with an overall 40 percent chance of precipitation and generally light rainfall totals of a tenth to a quarter of an inch. Even so, many cells will feature frequent lightning and brief but heavy downpours. Typical southwest winds should run 6-13 mph with gusts to around 20 mph, but any stronger, isolated storms could kick out damaging outflow gusts of 40-60 mph. Drivers should be ready for sudden visibility drops on wet roads and the possibility of short-lived power flickers or downed small limbs, according to NWS Jacksonville.
Heat Outlook And Local Resources
The hot and humid pattern sticks around into Tuesday, June 23, 2026, and Wednesday, June 24, 2026, with highs holding in the lower to mid-90s and heat-index values likely topping 100°F. If afternoon storm coverage stays limited, that combination could be enough to trigger Heat Advisories, so vulnerable residents should plan ahead. The City’s Stay Cool Jax plan outlines cooling-center locations and when they open; check local hours and sites on the city's page: City of Jacksonville Stay Cool Jax.
What To Expect And Safety Tips
Residents should secure loose outdoor items that could get tossed around by outflow winds, keep a charged phone handy for weather alerts, and build in extra travel time if driving through wet or storm-affected areas. NWS Jacksonville is continuing to monitor the pattern and notes the potential for Heat Advisories on Tuesday and Wednesday. Before heading out this afternoon and evening, check the latest updates from NWS Jacksonville and JaxReady alerts.
