textproduct: Key West
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
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.
AVIATION
(18Z TAFS) Issued at 132 PM EDT Wed Jun 24 2026 VFR conditions will prevail through 18z Thursday afternoon. With that said, isolated shower and thunderstorm activity will be possible in the vicinity of the terminals, mainly early due to possible island cloud line formation. With limited coverage and impacts to visibilities and ceilings anticipated, have left explicit mention out of the TAFs for now.
PREV DISCUSSION
Issued at 511 AM EDT Wed Jun 24 2026 Dry air will continue to cap much in the sense of vertical development through the next few days, resulting in 10-20% PoPs through this weekend. During the days heating combined with dewpoints in the upper 70s will make for higher heat indices. Not much is expected to change from what we've been experiencing this week thus far. Stay hydrated!
MARINE
Issued at 1006 AM EDT Wed Jun 24 2026 Conditions may become favorable for waterspout formation in the nearshore waters north of the Florida Keys this afternoon. Mariners are reminded that a waterspout would most likely appear beneath a dark, flat bottom of a building cumulus line, just at the hint of rain.
From synopsis, a broad high pressure system stretching from the Gulf Basin, eastward to the Florida Peninsula, and into the central North Atlantic will largely dictate the sensible weather for the Florida Keys marine zones through the weekend. While maintaining east to southeast breezes, the high will fluctuate in strength. Light to gentle breezes will modestly freshen by Thursday, with gentle to moderate breezes then continuing through the weekend.
PRELIMINARY POINT TEMPS/POPS
Key West 92 83 91 83 / 20 10 10 10 Marathon 89 83 89 84 / 20 10 10 10
KEY WATCHES/WARNINGS/ADVISORIES
FL...None. GM...None.
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