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NewsWSVN 7 MiamiAugust 16, 2026Miami-Dade

National Weather Service issues Heat Advisory for South Florida through Sunday

A Heat Advisory is in effect this Sunday from 11 a.m. to 7 p.m. as South Florida experiences record-breaking temperatures reaching the mid-to-upper 90s. The extreme heat is caused by a heat dome trapping air over the region, with the hottest conditions expected early to mid-week.

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Why It Matters

Residents face increased health risks from extreme heat, requiring precautions like hydration and staying indoors during peak midday and afternoon hours.

Key Facts

  • A Heat Advisory is active this Sunday from 11 a.m. to 7 p.m.
  • Temperatures are forecast to reach the mid-to-upper 90s throughout the week.
  • Monday, Tuesday, and Wednesday are identified as the days with the highest probability of record-breaking heat.
  • Tuesday is forecasted to be the hottest day of the week.
  • The heat is caused by a large heat dome over the deep South combined with west/northwest winds.
  • Saharan dust is expected to cause hazy sunshine and limit cloud cover and rain through early next week.
  • The Atlantic basin is currently quiet with no tropical development expected over the next week.
  • Temperatures are expected to begin decreasing slightly during the second half of the week as the heat dome breaks down.

Who's Mentioned

locationSouth Florida“Geographic area affected by the heat wave.”organizationWSVN“News outlet reporting the weather forecast.”organizationSunbeam Television Corp“Copyright holder of the report.”locationMiami“City specifically noted for probable record heat.”