textproduct: Key West

KEY MESSAGES

- Shower and thunderstorm coverage will be waning through the remainder of the afternoon and into tonight as drier air moves in.

- Conditions will remain seasonably warm and muggy.

- There will be little relief in the warm temperatures overnight, with minimum temperatures near record values in the lower to mid 80s for most communities.

MARINE

Issued at 338 PM EDT Sun Jun 28 2026

Gentle to occasional moderate breezes persist this afternoon and will continue into the overnight. Across the Southeast Gulf waters where breezes slackened earlier in the day, these breezes will freshen as well shortly after sunset. Thereafter, breezes will tend to peak overnight and lull during the late morning and afternoon hours through Monday evening. Then a frontal boundary will bleed south across central Florida and stall. This will lead to breezes slackening through Thursday. Breezes will resume a cycle of peaks and lulls by Friday.

AVIATION

(18Z TAFS) Issued at 338 PM EDT Sun Jun 28 2026

Shower and thunderstorm coverage is diminishing and lifting northwest of the island terminals. Additional isolated showers and thunderstorms may fire late overnight but confidence on timing and placement is too low at this time. Otherwise, east to southeast winds will hold around 10 knots with infrequent gusts around 15 knots.

PREV DISCUSSION

Issued at 506 AM EDT Sun Jun 28 2026

Another summer night has come and gone in the Florida Keys. A majority of the night KBYX has been busy with scattered showers and thunderstorms popping up in different locations across our area. Though coverage has been widespread over the waters, the island chain has not gotten much measurable rainfall. Outside of these areas of convection, skies are mostly clear seen on Nighttime Microphysics. Temperatures across the islands are in the lower 80s slightly cooler than previous nights probably due to some showers cooling it off a bit. Along the Reef, marine observation sites are reporting easterly winds at near 10 knots.

Broad high pressure is still expected to be the main feature through early next week supporting the continuation of light to gentle east to southeasterly breezes. A frontal boundary is projected to move into northern Florida and into central Florida starting late Monday but it is not expected to have much impact on the local weather here other than slightly weakening the high and allowing for our breezes to slacken. Temperatures are expected to stay generally at near 90 with dewpoints in the mid 70s meaning the muggy conditions aren't going anywhere anytime soon. Stay hydrated.

PRELIMINARY POINT TEMPS/POPS

Key West 84 92 83 92 / 20 20 20 20 Marathon 83 90 84 90 / 20 20 10 20

KEY WATCHES/WARNINGS/ADVISORIES

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