textproduct: Key West

KEY MESSAGES

- Near seasonably warm and muggy conditions will continue through the rest of the work week.

- Light northeast to east breezes will modestly freshen late tonight through Tuesday morning, becoming gentle to moderate at times, and clocking to the east to southeast by Wednesday.

- Rain chances will remain low through next Saturday, exasperating existing moderate drought conditions.

AVIATION

(18Z TAFS) Issued at 126 PM EDT Mon Apr 27 2026 VFR conditions will prevail at both island terminals through 18z Tuesday afternoon, with near-nil rain chances. Northeast winds at 4 to 6 knots will veer to the northeast to east overnight and modestly freshen to 8 to 10 knots after 03z.

DISCUSSION

Issued at 445 AM EDT Mon Apr 27 2026 The benign pattern is expected to continue as we head into the start of the new work week. Northwest flow aloft continues for another day or two before more stout upper level ridging develops. The pattern reverts back to a more zonal or west to northwest flow as we reach mid to late week. Some weak ripples or weak waves are expected to transit through this flow during the week which may instigate some isolated shower or even thunderstorm activity, especially over the mainland. At the surface, another high drifts southeastward along the Eastern Seaboard. This will lead to a strengthening pressure gradient with breezes shifting to the northeast to east and freshening tonight through Wednesday night. Moisture undulations will continue keeping slight chances of rain in the forecast through Wednesday night. Temperatures remain in the mid 80s for highs with mid 70s for overnight lows. Dew points will also be hovering near 70 degrees keeping that summery feel. Some upper 80s during the day for highs and upper 70s overnight for lows cannot be completely ruled out, especially as we move into mid to late week.

A return to the weaker flow regime returns for late week into the first weekend of May which may instigate a pattern similar to that of this past Sunday. There is the potential we might need to keep an eye out for cloud lines again later this week. Stay tuned as we continue to hone in the forecast. One thing we have high confidence in is to expect continued highs in the mid 80s, potentially even some upper 80s, and overnight lows in the mid 70s, maybe upper 70s, and dew points in the lower to perhaps mid 70s.

MARINE

Issued at 1111 AM EDT Mon Apr 27 2026 No watches, warnings, or advisories are currently in effect for the coastal waters of the Florida Keys. From synopsis, weak high pressure over the North Atlantic will dominate the synoptic pattern over the Florida Keys coastal waters for the next several days. This will support generally light to gentle north to northeast breezes this morning, becoming light and variable at times. Breezes may briefly freshen tonight through Wednesday, before becoming light to gentle again for the end of the work week.

PRELIMINARY POINT TEMPS/POPS

Key West 77 85 77 85 / 10 10 10 10 Marathon 76 85 77 86 / 10 10 10 10

KEY WATCHES/WARNINGS/ADVISORIES

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