The day starts thick and sticky at Miami International Airport, with mostly cloudy skies, temperatures hovering near 84°F and a dew point around 75°F that makes the air feel like a warm sponge. As the morning haze burns off, expect plenty of sunshine and a high near 90°F this afternoon. With that humidity, though, it will feel more like the low 100s across much of the metro, especially in inland neighborhoods where a light east breeze of about 7-12 mph offers less relief.
Forecasters at the National Weather Service's Miami office are calling for a "Moderate to Major HeatRisk" today, with widespread triple-digit heat index values and brief interior spikes near 110°F, according to the latest outlook (NWS Miami). A pocket of drier air overhead should keep most of the metro on the quieter side, rain-wise, but forecasters say shower and storm chances go up on Tuesday, June 30, 2026, as a front approaches.
Tuesday And Beyond
Tuesday, June 30, 2026, is expected to turn wetter, with a chance of showers and thunderstorms after about 3 p.m. Storm coverage is forecast to increase Wednesday, July 1, 2026, and continue through the rest of the week. Those slow-moving afternoon sea-breeze storms can dump heavy rain in a hurry, leading to localized flooding, along with gusty winds and frequent lightning, so you may want to pad your travel time if you have outdoor plans.
Even with more clouds around, the heat does not exactly take the day off. Highs should stay near 90°F, and many neighborhoods will still see feels-like readings in the 100-105°F range.
Cooling Centers And Safety
If you need a breather from the heat, public cooling centers run by the City of Miami and Miami-Dade are available, with locations and hours listed online (City of Miami). Try to avoid long stretches of outdoor exertion between 11 a.m. and 6 p.m., keep water handy, check in on older neighbors and pets, and move into air conditioning at the first signs of heat illness.
Boaters And Beaches
On the water, seas should generally hold around 2 feet or less away from storms. Thunderstorms, however, can quickly flip the switch, bringing sudden strong winds and choppy conditions. If you are planning time on the boat or at the beach over the next few days, keep a close eye on radar and be ready to postpone trips if storms start popping nearby.
