Afternoon Thunderstorms, Rain For South Florida

Published by

FLORIDA WORD

April 20, 2026 8:03 am

SPC Severe Weather Outlook, April 20, 2026 – Marginal Risk for Thunderstorms in South Florida

MIAMI, Florida – The Storm Prediction Center (SPC) has issued a Marginal Risk (Level 1) of severe thunderstorms for portions of South Florida on Monday, April 20, 2026. The risk area covers the East Coast metro corridor from Okeechobee southward through Miami, West Palm Beach, Fort Lauderdale and into the Florida Keys, as well as parts of southwest Florida.

The National Weather Service in Miami forecasts a cold front moving into South Florida today, triggering scattered showers and thunderstorms. Activity begins early this morning near Lake Okeechobee and shifts to the East Coast metro and southwest areas by afternoon.

Stronger storms may produce heavy downpours with localized urban flooding, gusty winds of 30-35 mph, and a low chance of penny-sized hail.

Breezy post-frontal conditions will create a high rip current risk along Atlantic beaches this week, with hazardous surf up to 6-8 feet near the Palm Beaches and small craft advisories for Atlantic and Gulf waters.

Miami Weather Forecast

Monday

A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. Light and variable wind becoming northeast 6 to 11 mph in the morning. Winds could gust as high as 18 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Monday Night

Showers and thunderstorms likely before 11pm, then a chance of showers between 11pm and 2am. Mostly cloudy, with a low around 70. Northeast wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

Tuesday

Mostly sunny, with a high near 78. Breezy, with a northeast wind 14 to 18 mph, with gusts as high as 29 mph.

Tuesday Night

Partly cloudy, with a low around 69. East wind 9 to 14 mph, with gusts as high as 24 mph.

Wednesday

Partly sunny, with a high near 78. East wind 10 to 14 mph, with gusts as high as 23 mph.

Wednesday Night

Mostly cloudy, with a low around 69. East wind 7 to 10 mph.

Published by

FLORIDA WORD

April 20, 2026 8:03 am