Heat Peaks Saturday Before Strong Front Sweeps Treasure Coast Sunday

TODAY: A mostly sunny start gives way to partly cloudy skies by afternoon. Highs climb to the upper 80s — about eight degrees above the May 1 historical average for the Treasure Coast. Southwest winds shift southeast at 10 to 15 mph late in the day. The National Weather Service said no rain is expected.

TONIGHT: Partly cloudy skies and a comfortable overnight low around 70. Southwest winds at five to 10 mph.

THIS WEEK: Saturday turns breezy and brutal before the bottom falls out Sunday. Highs reach the mid-90s Saturday — dangerous heat for anyone working outdoors or spending extended time at the beach — as southwest winds build to 15 to 20 mph by evening. The pattern breaks hard Saturday night when a cold front pushes through with a 50% rain chance and storms possible after midnight. By Sunday, the front's full force arrives: showers are likely all day, thunderstorms probable by late afternoon, and temperatures crash to the upper 70s — a jarring 15-degree drop from Saturday's peak. North winds gust to 25 mph Sunday. The weekend finishes wet and cool, forecasters said.

ON THE WATER: Friday morning offers the cleanest window on the water before southeast winds kick up to 15 mph by afternoon, building chop along the beachfront and inlets. Saturday's southwest fetch at 15 to 20 mph will push seas up considerably — offshore anglers should plan an early departure and be back at the dock before noon. Sunday is a stay-home day: 25 mph gusts, deteriorating visibility in heavy rain, and confused seas behind a frontal passage make conditions unsafe for most recreational vessels, according to NWS data. The best fishing window this weekend is Friday dawn to mid-morning, particularly around Fort Pierce Inlet and the St. Lucie River mouth, where bait schools tend to stack ahead of incoming frontal pressure.

ALERTS: No active NWS watches, warnings, or advisories are in effect for Martin, St. Lucie, or Indian River Counties as of Friday morning. Conditions Sunday warrant close monitoring — check NWS Melbourne for updates as the frontal timing may shift.

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