Today's Weather - Monday, June 15, 2026
BOCA RATON, FL — Expect a hot, humid start that turns stormier late in the day. Highs reach around 91, but it will feel closer to 103 to 105 during the late morning and early afternoon. Showers and thunderstorms are likely mainly after 3 p.m., and a few could dump heavy rain in a short time. Storms should fade early this evening, with a warmer, mostly quiet night near 78–79
South Florida’s weather pattern shifts a bit today, and that matters for Boca Raton. The National Weather Service notes high pressure is setting up over the western Atlantic while a larger-scale dip in the jet stream over the eastern U.S.
helps keep a front stalled well to our north. For us, that combination changes the wind direction compared to recent days: instead of a steady ocean breeze, winds turn more southerly near the ground, with a west-to-east push higher up.
That setup tends to steer the day’s storm focus toward the east coast metro areas, including Boca Raton, especially from mid-afternoon into early evening. The atmosphere is also loaded with moisture (the AFD highlights very high moisture values), so when storms form they can rain hard quickly.
With storms moving slowly at times, localized street flooding is possible in poor-drainage spots and typical urban trouble areas. Heat is the other headline.
For the Boca Raton area waters (Jupiter Inlet to Deerfield Beach), winds run southwest around 10 knots this morning, turning more southerly later today. Seas stay low—generally 2 feet or less—with a light chop on the Intracoastal.
The main marine concern is thunderstorms later today and again at times this week. Any storm can briefly kick up locally hazardous winds and choppy seas, along with frequent lightning and sudden visibility drops in heavy rain.
Boaters should plan to be in port or near safe harbor by mid-afternoon and keep an eye on the western sky as storms build inland and drift toward the coast.
Current Advisories / Watches / Warnings
- Heat Advisory from 11 AM to 6 PM EDT Monday for coastal/metro Miami-Dade and Broward (NWS Miami).
7 Day Outlook
- Monday (Jun 15): Partly sunny and very humid. High near 91 with heat index up to about 103–105. Thunderstorms likely after 3 PM; brief gusty winds and heavy downpours possible. Low near 78.
- Tuesday: Mostly sunny and still hot, high near 91. Only a 20% chance of late-day storms, but heat index may reach around 105. Breezier south winds with occasional gusts near 18 mph.
- Wednesday: Sunny and warm with a 30% chance of afternoon storms. High near 91 and muggy. A few storms could be briefly strong with gusty winds; most areas stay dry until later day.
- Thursday: Mostly sunny with a lower (around 20%) afternoon storm chance. High near 90. Winds trend more southeast, which can bring a bit more ocean influence but still feels steamy.
- Friday (Juneteenth): Mostly sunny and hot with a 20% chance of afternoon storms. High near 90 with a humid feel. Southeast winds may gust near 18 mph; watch for lightning late day.
- Saturday: Storm chances increase (around 50%). Still warm with highs near 91, but more clouds and showers could knock temperatures down briefly. Downpours may cause isolated ponding on roads.
- Sunday: Another unsettled day with about a 50% chance of showers and thunderstorms. High near 91. Expect a mix of sun and storms, with the most active period typically mid-afternoon to early evening.
Get the latest Boca Raton Weather update with today’s heat, late-day thunderstorm chances, and a look ahead at the week’s storm and humidity trends.
