Miami woke up to a warm, sticky start on Thursday, March 12, 2026, with partly cloudy skies and temperatures hovering near 75°F at Miami International Airport. By this afternoon, highs are expected to climb to about 82°F, with south winds around 10 to 14 mph and gusts nearing 18 mph. Rain chances start to ramp up late Thursday night and stay elevated through the weekend as a weak frontal boundary and a couple of low-pressure areas slide across South Florida. No watches or warnings are in effect this morning, but scattered showers and isolated thunderstorms are likely from Friday through Sunday.
Afternoon Winds Pick Up
The southerly breeze will keep humidity running high, making it feel even hotter, especially away from the coast. South winds should hold in the 10 to 14 mph range, with gusts up to about 18 mph possible by midafternoon. According to the National Weather Service in Miami, VFR conditions should prevail today, although scattered showers and isolated thunderstorms are possible after dark.
Weekend Outlook
Rain chances jump on Friday as deeper moisture moves into the area, with roughly a 40% chance of showers and thunderstorms during the afternoon. Saturday and Sunday stay on the unsettled side, and Sunday currently looks like the day with the widest coverage of showers and storms. Temperatures remain above normal through early next week, with daytime highs in the low 80s and muggy nighttime lows hanging near 70 along the coast.
How Much Rain To Expect
Rain totals are expected to be modest overall. Most spots should see around a quarter to a half inch on an average day, though localized downpours could easily push amounts higher in a few neighborhoods. Because the deeper moisture is limited higher in the atmosphere, storms are likely to be more showery and spotty than long-lasting, which keeps the risk of widespread flooding relatively low. Still, localized puddling, slow-draining streets, and soggy outdoor plans are possible, particularly inland where storms will tend to be strongest.
Beach Safety And Local Events
By the weekend, a more onshore wind will drive up the rip current risk, so anyone hitting the sand should swim near lifeguards and follow posted flags. The Miami-Dade County Youth Fair opens Thursday, March 12, 2026, at the Fair Expo Center and could run into some wet stretches over the weekend. Check the Miami-Dade County Fair & Exposition for event updates and parking information. Boaters and small craft should secure loose gear and be ready for choppy Atlantic conditions at times.
Plan Your Commute
Drivers should be prepared for brief heavy downpours that can quickly cut visibility and make roads slick during afternoon and evening commutes from Friday through Sunday. Build in extra travel time if you are heading to the fair or other weekend events, and keep a light rain jacket handy if you will be outside. If you have weather-sensitive outdoor plans, it is worth shifting key activities to the morning hours, when showers tend to be less likely.
