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
- Gentle to moderate broadly easterly breezes will prevail, peaking overnight and lulling during the day. - Near to below normal shower and thunder chances will prevail through the weekend and well into next week.
DISCUSSION
Issued at 400 AM EDT Sat Aug 8 2026
Considerably drier conditions have finally spread across the area. This is due to deep layered Atlantic ridging centered off the Mid Atlantic coast expanding westward into the Gulf. In addition, winds had relaxed to a light to gentle breezes through the evening. Precipitable water has also fallen to 2.08 inches. This is still above the 75 percentile for the day and inhibition has been absent. However, CAPE was limited below 800 mb.
With the departure of the lower level trough, east to southeasterly breezes have increased to gentle to moderate across the area as the surface ridge exerts more control over our area. This ridge will remain planted across Florida and the Gulf through the duration of the forecast. Expect breezes to peak in the gentle to moderate range overnight and lull to light to gentle during the day. No trend in temperatures are expected with highs remaining near 90 and lows in the lower to mid 80s. Dew points will hover in the mid to upper 70s.
In general, the deep layered ridging will keep rain chances slim to none through the forecast, Scattered activity currently working its way across the area should diminish through the morning hours. In addition, a subtle lower level trough will move across our area Sunday into Sunday night and may nudge PoPs up into low chance range.
MARINE
Issued at 400 AM EDT Sat Aug 8 2026
Atlantic ridging, stretching along the Gulf Coast will strengthen over the next several days. As a result, mostly gentle east to southeasterly breezes should back easterly and trend upwards. Winds will continue to peak overnight and lull during the day. Periodic cautions may begin to be required for portions of Keys waters heading into mid week. Shower and thunderstorm chances will be near to slightly below normal through the duration.
AVIATION
(06Z TAFS) Issued at 400 AM EDT Sat Aug 8 2026
VFR conditions will prevail at island terminals today. Surface winds will be light to gentle out of the east to southeast.
PRELIMINARY POINT TEMPS/POPS
Key West 92 83 92 84 / 20 30 30 20 Marathon 90 84 90 84 / 20 20 40 40
KEY WATCHES/WARNINGS/ADVISORIES
FL...None. GM...None.
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