Today's Weather - Tuesday, June 30, 2026
BOCA RATON, FL — Expect a mostly sunny and very hot Tuesday, with a high near 92 and heat index values pushing up around 105 during the afternoon. A few showers or thunderstorms could pop up after mid-afternoon, but coverage should stay limited today. Tonight is mostly clear and warm near 79, with a small chance of a late-night shower or storm. Rain chances climb noticeably Wednesday and Thursday as deeper humidity returns, and any storms that form could be slow-moving with brief heavy downpours
South Florida stays under the influence of a broad dome of high pressure aloft today, which helps keep the morning and early afternoon mostly sunny and hot. The National Weather Service notes that the bigger day-to-day change is not a strong front moving through Boca, but a front that stalls to our north in Central Florida.
Even so, that nearby boundary helps pull in deeper tropical humidity as the week goes on. Today, winds remain light and are largely driven by the sea breeze.
With the air still not fully “loaded” with moisture, storm coverage should be on the lower side in Boca Raton, lining up with the point forecast’s 20% chance after 3 p.m. Still, any storm that does develop can produce a quick burst of lightning, gusty wind, and a brief downpour.
Heat is the main impact again. The forecast calls for moderate to major HeatRisk, with peak heat index values generally 105 to 110 across the region.
For the Boca Raton coastal waters (Jupiter Inlet to Deerfield Beach), winds stay gentle today—around 5 knots—shifting from southwest to northwest, then turning northeast later. Seas remain low, generally under 2 feet, with light chop in the Intracoastal.
Tonight brings northeast winds 5 to 10 knots and a chance of showers and thunderstorms after midnight. Wednesday and Thursday keep seas mostly 2 to 3 feet offshore, with generally light winds.
The main marine concern is thunderstorms: brief higher winds and seas are possible in and near storms, along with frequent lightning and sudden visibility drops in heavy rain. Beachgoers should also keep an eye on changing conditions as the onshore breeze develops each afternoon.
Current Advisories / Watches / Warnings
- will be close to Heat Advisory criteria, probabilities remain on
7 Day Outlook
- Tuesday (Jun 30): Mostly sunny and very hot, high near 92. Heat index around 105. Isolated late-day storms possible after 3 p.m.; most spots stay dry. Light winds turn easterly in the afternoon.
- Tuesday Night: Mostly clear and muggy, low near 79. A small chance of a shower or thunderstorm late, mainly around midnight to pre-dawn. Winds ease and become light.
- Wednesday: More humidity and more storms. High near 90 with heat index near 103. Showers and thunderstorms likely late afternoon into evening; slow movers could drop heavy rain in a short time.
- Wednesday Night: Continued unsettled pattern with showers and storms likely early, then scattered activity later. Low near 79. Any lingering storms can still produce brief downpours and frequent lightning.
- Thursday: One of the wetter days of the stretch. Mostly sunny early, then numerous afternoon storms likely. High near 90. Slow storm motion may lead to localized flooding in poor-drainage areas.
- Friday: Still hot with a more typical summer breeze developing. High near 90 with scattered afternoon storms (around 50%). Storm focus may begin shifting farther inland as southeast flow strengthens.
- Saturday: Warm and partly sunny with only a lower-end storm chance compared to midweek. High near 90. A few afternoon or evening storms remain possible, especially inland; heat stays a factor.
Get the latest Boca Raton Weather update with today’s heat, storm timing, and a day-by-day outlook through the weekend.
