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Heavy rain and triple-digit heat: What to expect this week

Forecast brings stormy afternoons, possible flooding, and another stretch of sweltering heat

JACKSONVILLE, Fla. – If you’ve been hoping for a break from those drenching afternoon storms, you’ll want to keep the umbrella handy.

We’re in store for another pattern of wet afternoons across Jacksonville and the surrounding communities.

Rainfall picked up across several neighborhoods yesterday, and similar downpours are on the way—starting later today and likely repeating through the week.

Early risers will wake to mostly dry skies, with temperatures in the low to mid-70s from Jacksonville to the coast.

The radar looks clear for the morning, and it could be a nice time for a beach walk or sunrise view. But don’t get too comfortable—the forecast shows a few light storms building by noon, especially across northern areas.

These storms are set to intensify into the afternoon. From 2-4 p.m., rain chances rise in Jacksonville, Orange Park, and as far south as Palm Coast.

By late afternoon and into the evening—from 4-8 p.m.—showers are expected to become more widespread before easing late tonight.

According to The Weather Authority’s Exact Track 4D, these patterns are not a one-off: this unsettled weather remains likely every day this week.

Forecasts show about 1 inch of rain in Jacksonville and a quarter-inch along the coast over the next two days, with totals reaching up to 2 to 3 inches through the next week in some spots.

Flash flood danger

The flash flood risk is on the rise, especially north of the state line.

Parts of southern Georgia are facing a higher threat of flash flooding, though Northeast Florida shouldn’t let its guard down.

Heavy downpours can quickly lead to ponding on area roads, making travel tricky even outside the highest risk zones.

Triple digit heat index continues

Storms aren’t the only thing turning up the pressure. Even before the rain moves in, the thermometer is expected to climb rapidly this morning, topping out in the low to mid-90s for Jacksonville, Callahan, and the coastal strip.

When you combine humidity levels with rising air temperatures, the heat index—or “feels like” temperature—could again reach the triple digits across much of the area.

For health and comfort, take extra care in the sticky, hot hours between mid-morning and early evening.

Heat-related illness is an ongoing concern, as these excessive temps and muggy conditions show no signs of letting up through the week. Even if not every location cracks 100 degrees, most neighborhoods will be uncomfortably close.

Stay connected and share your storm photos

Have you caught a wild weather shot or dramatic sky during this stretch of storms? Show what’s happening in your neighborhood by sending your pictures to SnapJAX.

And remember, you can always check the latest forecasts and radar on the News4JAX weather page.


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