textproduct: Miami - South Florida

KEY MESSAGES

Updated at 121 AM EDT Fri May 8 2026

- Above average temperatures continue today and will continue through the weekend. Probabilities of heat-related impacts across urban areas during this time frame remain high. Residents and visitors with outdoor plans should take precautions to avoid heat-related illness.

- The next chance for rain arrives early next week as a frontal boundary approaches the region.

SHORT TERM

(Today through Saturday) Issued at 121 AM EDT Fri May 8 2026

Upper level high pressure dominates the pattern through the short term period leading to sunny and mainly dry conditions today and Saturday. Sea breezes should dominate the local surface wind flow with east-southeast winds prevailing across the east coast each afternoon and west-southwest winds across Southwest Florida. PWATs will remain around 1 inch or less today, so really not expecting much in the way of convective development. A slight increase in moisture on Saturday may allow for a couple low-topped showers over interior locations as sea breezes progress inland, however the vast majority of the day should remain completely dry.

The main story is the unseasonable heat, as highs will reach the upper 80s to perhaps even low 90s along the coast, and low to mid 90s for interior locations today and tomorrow. Maximum heat index values will approach the upper 90s today, but should break the lower 100s on Saturday as the warming trend continues. As a result, NWS HeatRisk is moderate across all of South Florida today, and increases to Major across Southeast Florida on Saturday. Taking a look at the experimental Probabilistic HeatRisk, there is even a slight chance (around 15%) that some parts of metro SE Florida will reach Extreme HeatRisk. Tonight and Saturday night, overnight lows will struggle to dip much lower than the upper 70s, and may not even dip below 80 overnight - especially for areas closest to the water. While these temperatures are not uncommon for South Florida in general, they are quite unusual this early in the year, and with little to no relief from the heat and humidity overnight. With the upper level ridge nearly directly overhead, winds overnight will be nearly non- existent leading to stagnant, soupy and uncomfortable conditions overnight.

LONG TERM

(Saturday night through Thursday) Issued at 121 AM EDT Fri May 8 2026

As high pressure slides eastward and the next frontal boundary approaches from the north, slightly higher rain chances for Sunday, especially across northern parts of the forecast area where modeled PWATs may even approach 2 inches as moisture increases through the day. The excessive heat risk peaks on Sunday as the front approaches and light southerly flow prevails. Highs will peak in the upper 80s to low 90s along the coast and mid-upper 90s for interior locations. NWS HeatRisk increases to major across the SW FL metro areas in Naples and expands across all of metro SE Florida with pockets of Extreme across the western suburbs. Major and Extreme HeatRisk can be impactful to anyone without adequate cooling/hydration and it's imperative that anyone with outdoor plans this weekend has a plan to stay hydrated and find relief from the sunshine. Early season heatwaves like this can catch many off guard, as hydration habits may not be as aggressive as during the summer months. Very little relief is expected heading into early next week on Monday and Tuesday with highs remaining in the upper 80s to low 90s and heat index values in the upper 90s to lower 100s. Overnight lows will struggle to dip below 80 degrees during this time period, especially for coastal areas. This will provide little to no relief from the heat during the nighttime periods.

Heat impacts aside, rain chances will begin to significantly increase on Monday and Tuesday and a front passes through the region. A surface low will deepen and accelerate towards the northeast which will send its attendant frontal boundary through the area. This will lead to southerly flow across the area on Monday, and once the boundary passes through the area overnight on Monday, northeast flow should prevail on Tuesday which hypothetically could provide a little relief from the heat. Rain chances remain around 30- 50% early next week and will begin to decrease by mid-week as the front begins to wash out. Enhanced cloud cover associated with the front should help keep the heat down a touch, although with this boundary weakening as it approaches the area, periods of sun should still be possible throughout the day Monday and Tuesday.

AVIATION

(06Z TAFS) Issued at 121 AM EDT Fri May 8 2026

VFR conditions and mainly clear skies prevail through the period. light and variable flow overnight will become southeasterly across eastern sites later this morning, and more west-northwest through the day for Naples.

MARINE

Issued at 121 AM EDT Fri May 8 2026

Generally benign marine conditions expected today with surface winds veering more southerly across Atlantic waters. Wind direction will be quite light and variable across Gulf waters today. Wave heights remain 1-3 feet over the next few days.

PRELIMINARY POINT TEMPS/POPS

Miami 92 78 92 79 / 0 0 10 0 West Kendall 94 74 93 76 / 0 0 10 0 Opa-Locka 93 77 93 79 / 0 0 10 0 Homestead 91 77 91 79 / 0 0 0 0 Fort Lauderdale 89 79 90 80 / 0 0 10 0 N Ft Lauderdale 90 77 90 79 / 0 0 10 0 Pembroke Pines 94 78 95 80 / 0 0 10 0 West Palm Beach 91 77 92 79 / 0 0 10 10 Boca Raton 89 79 90 81 / 0 0 10 0 Naples 90 74 91 76 / 0 0 0 0

MFL WATCHES/WARNINGS/ADVISORIES

FL...None. AM...None. GM...None.