Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

For More Weather Information:

Key West, FL Local Forecast Office

Boot Key Harbor FL

Marine Point Forecast

[NOTICE]

Today
High: 77 °F
Light Wind
< 1ft
Tonight
Low: 67 °F
Light Wind
< 1ft
Monday
High: 78 °F
Light Wind
< 1ft
Monday Night
Low: 67 °F
Light Wind
< 1ft
Tuesday
High: 78 °F
NNE 10kt
< 1ft
Tuesday Night
Low: 69 °F
Light Wind
< 1ft
Wednesday
High: 79 °F
Light Wind
< 1ft
Wednesday Night
Low: 70 °F
Light Wind
< 1ft
Thursday
High: 79 °F
E 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:15 am CDT Mar 22, 2026
Forecast Valid: 9am CDT Mar 22, 2026-6pm CDT Mar 28, 2026

View Nearby Observations

Detailed Forecast

Today

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Tonight

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Monday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Monday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Tuesday

NNE wind 5 to 10 kt. Sunny. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Wednesday

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.

Thursday

E wind around 10 kt. Sunny. Seas 1 ft or less.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.