textproduct: Key West

KEY MESSAGES

- Measurable rain chances will stay low for each forecast period through this weekend, generally at 20% or less.

- 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 150 PM EDT Thu Jun 25 2026

Scattered showers and isolated thunderstorms have re-ignited across mainly the Southeast Gulf waters. Additional activity moving across the eastern Straits of Florida has struggled to maintain themselves as they move northwest. Outside of any convection, mostly gentle east to southeast breezes are currently ongoing. Shortly after sunset, expecting a nocturnal surge to develop with gentle to moderate breezes expected. Thereafter, a broad ridge across the area will allow for a continued cycle of peaks and lulls to occur. An easterly undulation looks to arrive by the end of the week and over the weekend. This feature may enhance rain and thunder coverage across our coastal waters.

AVIATION

(18Z TAFS) Issued at 150 PM EDT Thu Jun 25 2026

A few isolated showers are possible near the MTH terminal early in the forecast period. Shower activity is expected to diminish during the afternoon and early evening. Additional showers may develop after midnight, however, coverage and exact timing remain questionable at this time. Otherwise, east to southeast winds will prevail around 10 knots and could increase slightly overnight.

PREV DISCUSSION

Issued at 535 AM EDT Thu Jun 25 2026 Another warm and humid morning is underway across the Florida Keys as a broad subtropical ridge remains across the region. Surface observations across the island chain indicate temperatures are in the mid 80s with dewpoints holding in the mid 70s, maintaining a muggy airmass. Along the Reef, marine locations are reporting east to southeast winds at near 10 knots. KBYX radar has been detecting various scattered showers with some isolated thunderstorms for a majority of the night into the early morning hours. Sufficient moisture will allow for the continuous showers here and there but overall coverage will remain fairly isolated to scattered with our rain chances being 20% for today. Overall, little change is expected in the weather with conditions resembling those that have been observed across the Keys throughout most of this past week as high pressure remains in place.

PRELIMINARY POINT TEMPS/POPS

Key West 83 92 84 92 / 20 20 20 20 Marathon 84 89 84 89 / 30 30 30 30

KEY WATCHES/WARNINGS/ADVISORIES

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