textproduct: Key West

KEY MESSAGES

- Rain and thunder chances will remain above normal tonight and tomorrow, and will gradually decrease into the midweek.

- Heat indices may approach 105 to 110 degrees each afternoon for some Florida Keys island communities, especially in the Upper Keys.

DISCUSSION

Issued at 1007 PM EDT Mon Jul 27 2026

A persistent upper mid latitude troughing will remain aligned along the Atlantic coast. This is reflected at the surface and lower levels as troughing draped along the Eastern Seaboard and into the northeastern Gulf. This has setup a stalled zone of moist confluent flow across Florida and the southeast. Precipitable water remains very high above 2 inches with essentially no inhibition and ample CAPE. All this will remain supportive of bouts of scattered to numerous showers with embedded thunderstorms. The broadness of the surface trough is keeping overall winds speeds light to gentle out of the southwest to west. Expect overnight lows in the lower to mid 80s and dew points in the mid 70s.

MARINE

Issued at 1007 PM EDT Mon Jul 27 2026

Broad weak troughing will remain stuck across the our area through the forecast. This will generally keep breezes light to gentle out of the southwest to west across Keys waters. There may be daily brief wind surges in the afternoon over waters near Key Largo due to the combination of the trough and day time heating.

AVIATION

(00Z TAFS) Issued at 1007 PM EDT Mon Jul 27 2026

A wet weather pattern remains entrenched across our area. As a result, while VFR conditions will prevail, expect bouts of sub VFR conditions due to rounds of scattered showers and a few thunderstorms. Surface winds will be light to gentle out of the southwest to west.

KEY WATCHES/WARNINGS/ADVISORIES

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