Today's Weather - Saturday, May 9, 2026
BOCA RATON, FL (Boca Post) (Copyright © 2026) — Sunshine dominates today, but it will feel noticeably hotter and stickier as the morning goes on. Expect a high near 89 with a light south wind turning southeast at 9 to 14 mph, with gusts up to around 20 mph. Most neighborhoods stay dry, though a brief late-day shower or thunderstorm can’t be ruled out. Tonight is partly cloudy and warm near 81, with only a small (20%) early-evening chance for a shower or storm
Boca Raton’s weekend weather is being shaped by a broad “lid” of high pressure in the middle levels of the atmosphere, centered early today near western Cuba and sliding toward the Bahamas by Sunday. That setup favors plenty of sun and limits widespread rain, but it also helps heat build efficiently during the afternoon.
At the surface, a weak front is stalled well north of us across northern Florida and is expected to fade by late Sunday. Even though it’s not moving through Boca today, it matters because it helps keep our winds generally southerly.
Those light south-to-southeast winds allow humidity to creep upward through the weekend, especially near the coast. The result is classic early-season heat stress: afternoon temperatures near 90 along the metro coast, paired with rising dew points.
The National Weather Service notes heat-related impacts are likely across urban areas through Monday, with heat index values commonly topping 100 to 105. Even without an official heat advisory, this can still be a high-impact stretch for outdoor plans—especially during the mid-afternoon.
For boaters and beachgoers along the Boca Raton coast, conditions stay mostly manageable this weekend. South winds run about 10 to 15 knots today and tonight, with Atlantic seas generally around 2 feet (and 2 feet or less nearshore).
Expect light chop on the Intracoastal, occasionally edging toward a moderate chop Sunday night as winds turn more southeast. While widespread storms aren’t expected today, an isolated thunderstorm is possible late, and storm chances increase early next week—remember winds and seas can jump quickly near thunderstorms.
By Tuesday night into Wednesday, seas may build to 3 to 5 feet offshore at times.
Current Advisories / Watches / Warnings
- .MFL WATCHES/WARNINGS/ADVISORIES...
7 Day Outlook
- Saturday: Sunny and hot with a high near 89. South wind turns southeast 9–14 mph with gusts near 20 mph. Mostly dry, but a brief late-day shower or storm is possible.
- Sunday: Partly sunny and very humid, high near 88. Heat index may reach around 100. A few afternoon showers or thunderstorms develop, with the better chance inland and toward evening.
- Monday: Partly sunny, high near 88. Shower and thunderstorm chances increase after mid-afternoon (around 40%). Expect warm, muggy conditions and a few downpours that could briefly slow travel.
- Tuesday: More unsettled with showers likely and a few thunderstorms, especially later in the day (around 60%). High near 87. Winds may shift from west to east, helping focus storms near the coast at times.
- Wednesday: Still a decent chance of showers and thunderstorms (around 50%), but with more breaks of sun. High near 84. Any storms could bring brief heavy rain and frequent lightning.
- Thursday: Warmer again with more sun returning, but a lingering 30% chance of a shower or thunderstorm. High near 86. Keep an eye on the sky for a quick afternoon storm.
- Friday: Mostly sunny and seasonably hot with a high near 86. Rain chances trend lower overall, though a brief pop-up shower can’t be ruled out in typical late-spring fashion.
Get the latest Boca Raton Weather update for Saturday, including today’s heat, humidity, and the rising chance of showers and thunderstorms early next week.
