5-day weather forecast Miami 21-08-2026
Weather forecast Miami today 21.08.2026: moderate rain, temperature from 26 °C to 36 °C.
Precipitation probability 92%. Wind up to 6.39 m/s (gusts 11.19 m/s). Air humidity 60–92%, atmospheric pressure 761–764 mm Hg, UV index up to 10.
Weather Alerts
Hide alertsHeat Advisory issued August 21 at 1:15AM EDT until August 21 at 6:00PM EDT by NWS Miami FL
Heat Advisory
* WHAT...Heat index values up to 107 expected.
* WHERE...Coastal Broward County, Coastal Miami Dade County, Far
South Miami-Dade County, Inland Broward County, Inland Miami-Dade
County, Metro Broward County, and Metropolitan Miami Dade Counties.
* WHEN...From 11 AM this morning to 6 PM EDT this evening.
* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
To reduce risk during outdoor work, the Occupational Safety and
Health Administration recommends scheduling frequent rest breaks in
shaded or air conditioned environments. Anyone overcome by heat
should be moved to a cool and shaded location. Heat stroke is an
emergency! Call 9 1 1.
5 days at a glance — tap a day to open it
Sunrise 06:56
Sunset 19:51
Sunset 19:51
First Quarter69% illuminated
Moonrise 15:42 · Moonset 01:11
Moonrise 15:42 · Moonset 01:11
Chart
Table
Fri, Aug 21, 2026
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Overcast | 27 °C | 24% | 100% | 81% | 762 mm Hg | S 187° 3.81 (4) m/s | 0 |
| 01:00 | Overcast | 27 °C | 24% | 100% | 82% | 762 mm Hg | S 185° 4.11 (4.81) m/s | 0 |
| 02:00 | Overcast | 27 °C | 25% | 100% | 83% | 762 mm Hg | S 180° 4.69 (5.5) m/s | 0 |
| 03:00 | Overcast | 27 °C | 25% | 100% | 84% | 762 mm Hg | S 182° 4.61 (5.31) m/s | 0 |
| 04:00 | Overcast | 27 °C | 23% | 100% | 79% | 762 mm Hg | S 184° 4.69 (5.39) m/s | 0 |
| 05:00 | Overcast | 27 °C | 23% | 100% | 79% | 762 mm Hg | S 183° 4.69 (5.42) m/s | 0 |
| 06:00 |  Cloudy | 27 °C | 15% | 68% | 76% | 762 mm Hg | S 181° 4.69 (5.5) m/s | 0 |
| 07:00 |  Partly cloudy | 27 °C | 13% | 30% | 83% | 763 mm Hg | S 186° 4.31 (5.22) m/s | 0 |
| 08:00 | Partly cloudy | 28 °C | 15% | 32% | 88% | 764 mm Hg | SSW 193° 4 (4.83) m/s | 0.4 |
| 09:00 |  Heavy rain | 26 °C | 92% (11.67 mm/hr) | 100% | 92% | 764 mm Hg | SSW 208° 3.61 (3.92) m/s | 1.5 |
| 10:00 | Heavy rain | 26 °C | 88% (25.88 mm/hr) | 100% | 82% | 764 mm Hg | SW 220° 2.5 (2.61) m/s | 3.4 |
| 11:00 |  Heavy rain at times | 29 °C | 84% (27.46 mm/hr) | 68% | 84% | 764 mm Hg | SSW 200° 2.81 (3.11) m/s | 6.1 |
| 12:00 | Heavy rain at times | 32 °C | 82% (27.46 mm/hr) | 86% | 74% | 764 mm Hg | S 178° 3.39 (8.39) m/s | 8.8 |
| 13:00 |  Sunny | 36 °C | 4% | 10% | 60% | 764 mm Hg | SSE 163° 4.5 (9.5) m/s | 10 |
| 14:00 |  Patchy rain possible | 32 °C | 22% (0.06 mm/hr) | 88% | 74% | 763 mm Hg | SSE 155° 6.11 (10.11) m/s | 9.1 |
| 15:00 |  Moderate rain | 26 °C | 85% (3.76 mm/hr) | 100% | 90% | 763 mm Hg | SSE 157° 6.39 (10.39) m/s | 5.2 |
| 16:00 | Moderate rain | 30 °C | 82% (3.83 mm/hr) | 98% | 83% | 762 mm Hg | SSE 157° 6.19 (11.19) m/s | 3.6 |
| 17:00 | Moderate rain | 29 °C | 80% (3.83 mm/hr) | 100% | 79% | 762 mm Hg | SSE 164° 6.39 (10.39) m/s | 2.5 |
| 18:00 | Moderate rain | 27 °C | 86% (4.02 mm/hr) | 100% | 91% | 762 mm Hg | S 171° 6 (10) m/s | 1.1 |
| 19:00 | Moderate rain | 28 °C | 82% (4.02 mm/hr) | 92% | 85% | 762 mm Hg | S 173° 5.69 (9.69) m/s | 0.2 |
| 20:00 |  Moderate rain | 27 °C | 82% (4.02 mm/hr) | 100% | 82% | 761 mm Hg | S 179° 4.69 (9.69) m/s | 0 |
| 21:00 | Moderate rain | 27 °C | 83% (4.02 mm/hr) | 100% | 84% | 762 mm Hg | SSW 193° 4.11 (9.11) m/s | 0 |
| 22:00 | Moderate rain | 27 °C | 83% (4.02 mm/hr) | 100% | 85% | 763 mm Hg | S 183° 4.19 (4.22) m/s | 0 |
| 23:00 |  Moderate rain at times | 27 °C | 76% (4.02 mm/hr) | 63% | 85% | 763 mm Hg | S 185° 3.81 (4) m/s | 0 |
Fri, Aug 21, 2026
Frequently asked questions about the 5-day weather in Miami
What will the weather be like in Miami over the next 5 days?
Over the next 5 days in Miami the temperature is expected to range from about 26 to 36 °C. See the detailed hourly forecast for each of the 5 days in the charts above.
On which of the next 5 days will it rain in Miami?
The chance of rain in Miami over the next 5 days reaches 92%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.
How accurate is the 5-day weather forecast for Miami?
A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.
Which of the next 5 days in Miami will be the warmest and which the coolest?
Over the next 5 days the temperature in Miami ranges from about 26 to 36 °C. Compare the warmest and coolest day on the temperature chart above.
Will it be windy in Miami over the next 5 days?
Over the next 5 days the wind in Miami picks up to 6 m/s. The windiest days are easy to spot on the wind chart above.
Which day of the week in Miami is best for a walk or a trip?
For a walk or a trip, pick the days with the lowest chance of rain (up to 92%) and light wind — easy to compare on the 5-day charts above.
How can I best use the 5-day forecast for Miami?
The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.
Miami on the map
Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.