Miami weather today: Thursday, September 10, 2026
Miami is entering the most active part of its rainy season with deep tropical moisture, high humidity, and repeated afternoon storm potential.
According to the NWS Miami point forecast, issued at 4:16 a.m. EDT, today’s key conditions are:
- High: Near 89°F
- Heat index: As high as 108°F
- Rain and storms: 50% chance of showers and thunderstorms
- Sky: Mostly sunny outside of storm activity
- Wind: East around 10 mph
- Rainfall: Generally under one-tenth of an inch, except where storms produce heavier downpours
- Tonight: Partly cloudy, low near 83°F, with a 20% chance of storms
Sunrise in Miami is approximately 7:02 a.m. Sunset is approximately 7:29 p.m.
Local10/WPLG reports showers near the Keys, coastal Broward, and Miami-Dade this morning, followed by scattered to numerous showers and thunderstorms during the afternoon. Some storms could produce strong wind or reach low-end severe intensity. When storms break apart, temperatures may push into the lower 90s.
When thunder roars, go indoors. Lightning, sudden wind gusts, and fast-moving downpours are serious hazards for anyone inspecting or working on a roof.
The National Weather Service is also reporting a moderate risk of rip currents at Miami-Dade, Broward, and Palm Beach beaches due to onshore winds and northeasterly swell.
Week-ahead outlook: rainy-season storms remain frequent
The next seven days favor a continued wet pattern across South Florida:
| Day | Forecast | High / Low |
|---|---|---|
| Friday, Sept. 11 | Showers and thunderstorms likely, mainly before 4 p.m.; 60% chance | 89°F / 83°F |
| Saturday, Sept. 12 | Showers and thunderstorms likely; 70% chance | 89°F / 81°F |
| Sunday, Sept. 13 | Storms likely mainly after 2 p.m.; 60% chance | 88°F / 80°F |
| Monday, Sept. 14 | Scattered showers and thunderstorms; 50% chance | 90°F |
| Tuesday, Sept. 15 | Showers and thunderstorms likely; 60% chance | About 89°F |
| Wednesday, Sept. 16 | Showers and thunderstorms likely; 70% chance | About 89°F |
CBS12 describes deep tropical moisture streaming into South Florida, with 50% to 60% rain chances through the weekend. The typical pattern is morning onshore showers followed by an inland push of storms during the afternoon. Heat indices may reach 105°F to 106°F in some areas.
September 10 is the climatological peak of Atlantic hurricane season
The Atlantic basin is unusually quiet in 2026. The National Hurricane Center reports no Atlantic tropical cyclone activity and none expected during the next seven days.
So far, five named storms have formed: Arthur, Bertha, Cristobal, Dolly, and Edouard. None has reached hurricane strength. The next named storm would be Fay.
That quiet pattern is linked to El Niño-driven wind shear and persistent Saharan dust. However, NOAA continues to warn against the “quiet season trap.” Warm ocean water can still provide fuel for rapid development, and Hurricane Andrew formed during a strong El Niño year before devastating South Florida in 1992.
Four tropical waves are being tracked, and one low-chance area off the southeastern United States could require additional monitoring in mid-September. Quiet conditions reduce risk; they do not eliminate it.
Why Miami’s climate is hard on roofs
South Florida is one of the most demanding roofing environments in the United States. A Miami roof must handle:
- Tropical downpours and repeated wet-dry cycles
- High humidity and mold or algae growth
- Intense ultraviolet exposure
- Salt air near Biscayne Bay and the Atlantic coast
- Strong thunderstorm gusts
- Hurricane-force wind potential
- Heat-driven expansion and contraction
- Flat-roof drainage challenges
Miami-Dade County is part of Florida’s High Velocity Hurricane Zone, or HVHZ. Roofing systems in this area face stricter wind-resistance requirements than many other parts of the country.
Roof coverings, fasteners, underlayments, and installation methods may need Miami-Dade Product Control approval through a Notice of Acceptance, or NOA. The specific product approval and fastening pattern matter. A product that is acceptable in another Florida county may not be suitable for a Miami-Dade installation.
Common Miami roofing problems
Algae and discoloration (Maintenance issue): Persistent humidity and shaded moisture create ideal conditions for algae, mildew, and dark streaking.
Corroded flashing and fasteners (Salt-air exposure): Coastal air can accelerate corrosion around vents, chimneys, roof-to-wall transitions, and metal connection points.
Granule loss (Heat and UV damage): Asphalt shingles can lose protective granules after years of South Florida sun, leaving the mat more exposed to weather.
Seal-strip failure (Wind vulnerability): Aging shingles may lose adhesion, making edges and tabs easier for strong wind to lift.
Cracked barrel tiles (Impact and age): Concrete and clay tiles can crack from impact, foot traffic, thermal movement, or deterioration of the supporting system.
Ridge-cap blow-offs (Storm damage): Ridge caps are especially exposed to wind uplift and require careful fastening and sealing.
Flat-roof ponding (Drainage problem): Many Miami homes use flat or low-slope roofing. Standing water around drains, scuppers, or low spots can accelerate membrane deterioration and lead to interior leaks.
Storm-readiness checklist for Miami homeowners
Before the weekend storm pattern arrives, complete these low-risk checks from the ground. Do not climb onto a wet roof or walk on tile.
1. Clear gutters, scuppers, and roof drains
Leaves, palm debris, and sediment can block drainage. On a flat roof, even a partially blocked drain can allow water to collect quickly during a tropical downpour.
2. Look for visible roof damage
From the ground, check for:
- Missing or loose shingles
- Cracked or displaced barrel tiles
- Damaged ridge caps
- Lifted metal panels
- Loose flashing
- Sagging gutters
- Stains beneath roof edges
3. Inspect roof-to-wall transitions
These areas are common leak points on Miami homes. Look for separated sealant, deteriorated flashing, or gaps where a roof meets a stucco wall.
4. Trim branches away from the roof
Overhanging limbs can scrape roofing materials, clog drains, and become airborne debris during strong thunderstorms or tropical systems.
5. Check the attic after heavy rain
Look for damp insulation, dark stains, musty odors, or daylight around roof penetrations. A small leak can become a larger water-intrusion problem during a storm.
6. Document your roof before a storm
Take clear exterior photos and save repair invoices, permits, inspection reports, and insurance documents. Pre-storm documentation can help distinguish existing wear from later storm damage.
7. Verify contractor and product requirements
For roof replacement or permitted repairs, confirm that your contractor is properly licensed through the Florida Department of Business and Professional Regulation and is familiar with Miami-Dade requirements. Ask whether the proposed roofing system has the applicable Miami-Dade NOA.
Florida’s roof replacement rules also require careful review. The commonly discussed 25% rule can affect older roofs when more than 25% of a roof section is repaired or replaced. However, Florida Statute §553.844(5) provides an important exception for qualifying roofs built, repaired, or replaced under the 2007 Florida Building Code or later. Insurance coverage and ordinance-or-law provisions are separate issues. Review the roof’s permit history and your policy with qualified professionals before assuming a full replacement is required.
2026 Miami roof replacement cost context
For a typical 1,500- to 3,000-square-foot home, Miami roof replacement commonly falls between $7,000 and $25,000. Actual roof area may be larger than the home’s living area because of pitch, overhangs, attached garages, and complex rooflines.
Typical 2026 installed ranges include:
- Asphalt shingles (Budget to Popular): $4-$8 per square foot
- Barrel or flat concrete tile (Popular): $8-$16 per square foot
- Metal roofing (Premium): $10-$20 per square foot
- TPO or PVC low-slope roofing (Popular for flat roofs): $8-$14 per square foot
Miami-Dade permits, inspections, tear-off, structural repairs, steep access, complex roof geometry, and NOA-approved materials can increase the final price.
A roof estimate should account for roofing squares, not simply interior floor area. One roofing square equals 100 square feet of roof surface. For a broader planning benchmark, use the roof cost calculator, then compare it with a property-specific measurement.
Get a free Miami satellite roof estimate in 60 seconds
You do not need to schedule multiple contractor visits just to understand your likely roof replacement cost.
Get My Roof Estimate Now uses satellite imagery to measure your roof’s size, pitch, and complexity. In about 60 seconds, you can receive a free estimate with low, middle, and high price ranges based on your Miami property.
The estimate can help you:
- Plan for storm-related repairs
- Compare shingles, tile, metal, and flat-roof systems
- Prepare for a future roof replacement
- Understand how roof size affects pricing
- Budget before contacting licensed local contractors
Start with your address, review the numbers, and use the information to plan your next step with greater confidence.
Weather information is based on the NWS Miami point forecast issued September 10, 2026, along with local South Florida reporting. Forecasts can change. Follow official National Weather Service and National Hurricane Center guidance during severe weather.