Today's Weather - Thursday, May 28, 2026
BOCA RATON, FL — Partly sunny skies will carry Boca Raton through the first half of the day, with a 30% chance of showers and thunderstorms developing mainly after 3 p.m. Highs reach about 87 degrees with a southeast breeze around 9–13 mph and occasional higher gusts. Storm chances increase this evening, with showers and thunderstorms likely before about 8 p.m. and a 60% chance of rain overnight. If storms slow down or repeat over the same area, brief street flooding is possible, especially late today
Thursday’s forecast is being shaped by a bigger, messy weather pattern over the eastern U.S. that is gradually nudging more tropical humidity toward Florida.
The National Weather Service notes that several disturbances rotating through a large trough to our north are helping push the Atlantic high pressure system back, opening a “pipeline” of moisture from the western Caribbean and Gulf into the state. For Boca Raton, that added moisture is the main story.
Even without a strong, obvious front overhead, the atmosphere will be primed for heavier downpours once storms get going. Forecast moisture levels are unusually high for late May, which means storms can dump a lot of rain in a short time.
Timing-wise, the day starts relatively quiet, but the risk rises later in the afternoon and into the evening as sea breezes and leftover storm boundaries interact. The Weather Service highlights today as the higher-end day for isolated flooding concerns because winds are in transition—turning from more onshore to more westerly with time.
For the Boca Raton and Deerfield Beach coastal waters, southeast winds around 10–15 knots this morning will trend more southerly later today, then turn southwest by Friday. Seas stay low—generally 2 to 3 feet today, easing to around 2 feet or less tonight and Friday—with light chop on the Intracoastal.
Boaters should still watch the sky late today and this evening, since thunderstorms can produce sudden gusts, lightning, and locally higher seas. Along the beach, a high rip current risk continues today on the east coast as onshore flow gradually turns more southerly; swim near lifeguards and avoid venturing out alone.
Current Advisories / Watches / Warnings
- High Rip Current Risk through this evening for FLZ168-172-173.
- Rip Current Statement (east coast beaches).
7 Day Outlook
- Thursday (May 28): Partly sunny and warm near 87. Storms become more likely after mid-afternoon, with a few slow movers capable of heavy rain. High rip current risk continues at the beach.
- Friday: Mostly sunny early, then scattered to numerous afternoon storms. High near 87 with lighter winds turning south. Downpours and lightning remain the main impacts; keep an eye on late-day plans.
- Saturday: Mostly cloudy at times with showers and thunderstorms developing mainly after 2 p.m. High near 88. Storm coverage stays elevated, but storms should move along a bit better than Thursday.
- Sunday: Another active afternoon with showers and thunderstorms likely after 2 p.m. High near 88. Expect periodic heavy rain and frequent lightning; plan outdoor activities for the morning when possible.
- Monday: Very wet pattern continues with storms possible as early as morning, then more widespread showers and thunderstorms later. High near 88. Localized flooding becomes a concern where rain repeats.
- Tuesday: Showers and thunderstorms likely much of the day with a high chance of rain. High near 87. Expect on-and-off downpours and lightning; allow extra time for commutes during heavier bursts.
- Wednesday: Continued unsettled weather with showers and thunderstorms and slightly cooler highs near 85. Humidity remains high, and any stronger storm could still produce brief heavy rain and gusty winds.
Get the latest Boca Raton Weather update, including today’s storm timing, heavy-rain potential, and the ongoing high rip current risk at the beaches.
