Today's Weather - Monday, April 20, 2026
BOCA RATON, FL (Boca Post) (Copyright © 2026) — Monday, April 20, 2026 BOCA RATON, FL (Boca Post) (Copyright © 2026) — Showers and thunderstorms are expected to increase through the morning and peak this afternoon, with a 60% rain chance and a high near 79. A few storms could be on the stronger side, bringing brief gusty winds, lightning, and pockets of heavy rain that may cause localized street flooding. Northeast winds will pick up today and turn quite windy tonight, with gusts near 30 mph possible. Conditions improve Tuesday with sunshine, but it will be breezy and a bit cooler, and the beach and boating hazards will be elevated
South Florida’s weather turns unsettled today as a cold front slides down the peninsula and approaches Palm Beach County. The National Weather Service notes the front was already across central Florida early this morning, with the first showers beginning to pop up near the Martin/Palm Beach line.
For Boca Raton, that means rain chances build through the morning and become most widespread this afternoon, when scattered showers and thunderstorms are most likely. The main impacts today are lightning, brief downpours, and a few stronger storms.
Forecasters say some storms could produce gusty winds and even small hail, but the overall severe threat looks marginal. Still, any thunderstorm can quickly turn hazardous outdoors, and the strongest cells could kick up sudden wind gusts.
Rain totals are a key part of today’s forecast. While many spots may see around 1–2 inches, the forecast discussion highlights a low (about 10%) chance that isolated areas could pick up 2–4 inches or more.
Boating conditions deteriorate quickly today and especially tonight into Tuesday as winds surge behind the front. For the Boca Raton area Atlantic waters, northeast winds increase to 15–20 knots with higher gusts today, then ramp up to 25–30 knots tonight.
Seas build from 3–5 feet this afternoon to 8–11 feet offshore, with occasional higher sets over the Gulf Stream. Intracoastal waters turn choppy to very rough in exposed areas.
Beachgoers should also plan for hazardous surf and a high rip current risk along the Atlantic coast through midweek; consider staying out of the water when red flags are posted.
Current Advisories / Watches / Warnings
- High Rip Current Risk from 2 PM EDT Monday through Wednesday morning for FLZ168-172-173.
- High Surf Advisory from 2 AM to 8 PM EDT Tuesday for FLZ168.
- Small Craft Advisory from 2 PM Monday to 2 PM EDT Tuesday for AMZ610.
- Small Craft Advisory from 8 PM Monday to 11 AM EDT Wednesday for AMZ630.
- Small Craft Advisory from 2 PM Monday to 11 AM EDT Wednesday for AMZ650-651-670-671.
- Small Craft Advisory from 8 PM Monday to 8 AM EDT Wednesday for GMZ656-657-676.
7 Day Outlook
- Monday: Increasing showers and thunderstorms, most active this afternoon. High near 79. Northeast breeze builds with gusts over 20 mph. Watch for lightning and brief heavy rain causing localized flooding.
- Tuesday: Sunny, cooler, and windy. High near 76 with a strong northeast wind and gusts near 30 mph. Rough surf and dangerous rip currents continue; boating conditions remain hazardous offshore.
- Wednesday: Partly sunny and breezy with an onshore wind. High near 77. Mostly dry overall, though a brief coastal shower can’t be ruled out. Seas gradually ease but stay choppy.
- Thursday: Mostly cloudy at times with continued easterly flow. High near 77. Still mainly dry, but clouds increase as the pattern begins to shift later in the week.
- Friday: Mostly sunny with a low-end chance of an afternoon shower or thunderstorm (around 20%). High near 79. Winds ease compared to midweek, but the onshore breeze persists.
- Saturday: Warmer with a small chance of showers and thunderstorms (around 20%). High near 81. Most of the day should be usable, but keep an eye out for a quick-moving storm.
- Sunday: Mostly sunny and warmer. High near 83. Only a limited rain chance at this time, though a weak boundary nearby could nudge shower odds up in later forecasts.
Get the latest Boca Raton Weather outlook, including today’s storm chances, Tuesday’s windy cooldown, and beach and boating hazards along the Atlantic coast.
