Miami’s Sunday brings a high near 89°F with showers and thunderstorms likely and heat index values climbing as high as 106°F this afternoon, so if you’ve got outdoor plans, aim for the morning before storms fire up. The National Weather Service says scattered to numerous storms will develop today and continue into Monday, with the best chances over interior neighborhoods and the east coast metro corridor during the afternoon and evening hours.
Today’s Setup
A stalled frontal boundary well north of South Florida, paired with a ridge retrograding back over the state, is locking us into a south-to-southwesterly flow. That setup pins the east coast sea breeze close to the coast, which the NWS Miami office says will help trigger storms over metro areas like Brickell, Coral Gables, and Miami Beach as the afternoon heats up. Rain chances sit at 60% today, with a tenth to a quarter inch possible, and another 60% chance tonight before storms wind down after 10 PM ET.
Best Window To Be Outside
Morning through early afternoon is your best bet, before the sea breeze and daytime heating combine to spark storms. If you’re heading to Key Biscayne, South Beach, or out on Biscayne Bay, get on the water or trails early. By early-to-mid afternoon, thunderstorms become likely, and they’ll linger into the evening both today and Monday, so keep indoor backups ready for later.
Rain, Wind, And Flood Risk
The NWS is flagging localized flooding potential today and Monday, especially across east coast metro areas, due to high rainfall rates and slow-moving storms. South winds stay light at 7 to 10 mph, so wind isn’t the main concern here — standing water and lightning are. Keep a packable rain jacket and a compact travel umbrella handy, and give yourself extra drive time near flood-prone underpasses.
What To Wear Or Bring
With heat index values near 106°F, hydration matters as much as staying dry. Light, breathable clothing, sunscreen for sunny breaks, and that packable rain jacket for the afternoon pop-up storms are your best combo. Tackling yard work? Do it early in the morning before the heat and storms build — the EGO Power+ Battery Deal is worth a look if your mower needs an upgrade.
Games, Concerts, And Tickets
Inter Miami CF hosts Atlético de San Luis in the Leagues Cup on August 5 at Nu Stadium, and the Miami Marlins take on the Los Angeles Angels on August 7 at loanDepot Park. Get tickets on SeatGeek and pick up Official team gear on Fanatics before you go. Music fans have a big week too: Mumford & Sons play Hard Rock Live on August 6 — Find tickets on StubHub and grab a Mumford & Sons t-shirt for the show — followed by Derek Hough on August 5 and Deep Purple with Kansas on August 9 at the same venue, plus Mon Laferte at the Fillmore Miami Beach on August 7.
Tonight’s Dinner
With storms rolling through this evening, it’s a good night to stay in. A big pot of chili or beef stew made in a programmable slow cooker or enameled cast iron Dutch oven fits the mood perfectly. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
Next Few Days
Monday looks like a repeat: high near 90°F, storms likely after noon, and heat index values up to 108°F. Expect the same pattern into early next week — sunny mornings, building clouds, and afternoon-into-evening storms — so keep outdoor plans flexible. Check out outdoor gear deals to stock up before the next round of storms rolls in.

