24.6017’ N, 81.6550’ W

Big Coppitt Key, Waltz Key Basin, FL

84°
H -°
L 81°
E
10mph
High tide
11:10 pm

Big Coppitt Key, Waltz Key Basin, FL Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Sun
Oct 4
Partly Cloudy
Close Hourly
-º / 81º 15% ESE 13 mph 78%
8pm Partly Cloudy 84º 15% E 10 mph 79%
9pm Partly Cloudy 84º 2% E 10 mph 80%
10pm Partly Cloudy 84º 2% E 12 mph 81%
11pm Partly Cloudy 83º 2% E 12 mph 80%
Mon
Oct 5
Partly Cloudy
View Hourly
87º / 81º 9% SE 10 mph 72%
12am Partly Cloudy 83º 3% E 12 mph 79%
1am Mostly Cloudy 83º 3% ESE 12 mph 80%
2am Mostly Cloudy 83º 2% ESE 12 mph 79%
3am Mostly Cloudy 84º 4% ESE 11 mph 78%
4am Mostly Cloudy 83º 4% ESE 10 mph 77%
5am Mostly Cloudy 83º 4% ESE 9 mph 77%
6am Mostly Cloudy 83º 4% SE 8 mph 79%
7am Mostly Cloudy 82º 4% SE 8 mph 79%
8am Partly Cloudy 83º 4% SE 8 mph 78%
9am Partly Cloudy 84º 4% SE 8 mph 76%
10am Partly Cloudy 85º 9% SE 10 mph 72%
11am Partly Cloudy 86º 4% SE 10 mph 71%
12pm Partly Cloudy 86º 4% SE 10 mph 70%
1pm Partly Cloudy 86º 4% SE 10 mph 70%
2pm Mostly Cloudy 87º 4% SE 9 mph 69%
3pm Mostly Cloudy 86º 3% SE 8 mph 69%
4pm Partly Cloudy 86º 3% SE 6 mph 69%
5pm Partly Cloudy 86º 3% SE 5 mph 69%
6pm Partly Cloudy 86º 3% ESE 5 mph 70%
7pm Partly Cloudy 85º 3% ESE 6 mph 71%
8pm Partly Cloudy 84º 3% E 5 mph 74%
9pm Partly Cloudy 84º 4% ENE 4 mph 75%
10pm Mostly Cloudy 83º 9% E 5 mph 77%
11pm Mostly Cloudy 83º 11% E 5 mph 77%
Tue
Oct 6
Partly Cloudy
View Hourly
87º / 81º 7% S 9 mph 71%
12am Mostly Cloudy 83º 8% E 5 mph 77%
1am Mostly Cloudy 83º 6% E 6 mph 78%
2am Mostly Cloudy 83º 11% ESE 6 mph 77%
3am Mostly Cloudy 83º 6% ESE 5 mph 77%
4am Mostly Cloudy 82º 6% ESE 5 mph 77%
5am Mostly Cloudy 82º 22% SE 6 mph 78%
6am Partly Cloudy 82º 21% SE 6 mph 77%
7am Partly Cloudy 82º 5% SE 5 mph 79%
8am Partly Cloudy 82º 8% SSE 6 mph 77%
9am Partly Cloudy 84º 8% SSE 6 mph 74%
10am Partly Cloudy 85º 5% S 8 mph 72%
11am Partly Cloudy 86º 4% S 8 mph 70%
12pm Partly Cloudy 86º 4% S 8 mph 70%
1pm Partly Cloudy 86º 4% S 9 mph 69%
2pm Partly Cloudy 86º 4% S 8 mph 69%
3pm Partly Cloudy 86º 3% S 7 mph 69%
4pm Partly Cloudy 86º 4% SSW 6 mph 69%
5pm Partly Cloudy 86º 3% SSW 5 mph 69%
6pm Partly Cloudy 86º 4% SW 5 mph 70%
7pm Partly Cloudy 85º 4% SW 5 mph 72%
Wed
Oct 7
Partly Cloudy 86º / 80º 23% SW 11 mph 73%
Thu
Oct 8
Thundershowers 85º / 81º 35% SW 9 mph 75%
Fri
Oct 9
Mostly Cloudy 86º / 81º 23% SE 10 mph 74%
Sat
Oct 10
AM Showers 86º / 81º 36% SE 13 mph 76%
Sun
Oct 11
Partly Cloudy 87º / 81º 24% SE 13 mph 76%

Weather Radar for Big Coppitt Key, Waltz Key Basin, FL See Radar

* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for Big Coppitt Key, Waltz Key Basin, FL

Tonight
Low : 81ºF
Variable winds 5 kt or less. A slight chance of showers and thunderstorms. Seas 1 ft or less.
Monday
High : 89ºF
Variable winds 5 kt or less. A slight chance of showers and thunderstorms. Seas 1 ft or less.
Monday Night
Low : 80ºF
Variable winds 5 kt or less. A slight chance of showers and thunderstorms. Seas 1 ft or less.
Tuesday
High : 89ºF
Variable winds 5 kt or less. A slight chance of showers and thunderstorms. Seas 1 ft or less.
Tuesday Night
Low : 80ºF
Variable winds 5 kt or less. A slight chance of showers and thunderstorms. Seas 1 ft or less.
Wednesday
High : 88ºF
S wind 5 to 10 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Wednesday Night
Low : 80ºF
Variable winds 5 kt or less. A chance of showers and thunderstorms. Seas 1 ft or less.
Thursday
High : 86ºF
Variable winds 5 kt or less. A chance of showers and thunderstorms. Seas 1 ft or less.
Thursday Night
Low : 80ºF
E wind 5 to 10 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

NOAA Buoy Data Near Big Coppitt Key, Waltz Key Basin, FL See Map

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    Wind Speed Forecast for Big Coppitt Key, Waltz Key Basin, FL

    MondayTuesday
    Wind Speed (MPH) 1012108106555686
    12am4am8am12pm4pm8pm12am4am8am12pm4pm8pm
    MPH 1012108106555686
    DIR EEESESESESEEEESESSESSSW

    Current Weather Conditions In Big Coppitt Key, Waltz Key Basin, FL

    As Of: 43 minutes ago

    • 84ºF
    • 95ºF
    • 10mph
    • 0º (E)
    • 10mph
    • Partly Cloudy
    • 10mi
    • 29.95"
    • 79%
    • 0ºF

    The weather right now in Big Coppitt Key, Waltz Key Basin, FL is Partly Cloudy. The current temperature is 84°F, and the expected high and low for today, Sunday, October 4, 2026, are -° high temperature and 81°F low temperature. The wind is currently blowing at 10 miles per hour, and coming from the East. The wind is gusting to 10 mph. With the wind and the atmosphere the temperature feels like 95° Fahrenheit. Expected precipitation is 15 percent, with current humidity at 79 percent, and air pressure at 29.95 in. Visibility is 10 nautical miles. There are 1 current weather alert(s).

    Weather Alerts
    Coastal Flood Statement - 12:21pm Sun Oct 4 2026

    ...COASTAL FLOOD STATEMENT REMAINS IN EFFECT...

    WHAT: Minor saltwater flooding.

    WHERE: Florida Keys.

    WHEN: Through Monday morning.

    IMPACTS: Minor saltwater flooding of low elevation streets and
    lots is likely. Some storm drains will overflow, and some
    seawalls and docks will be overtopped. Boaters can expect less
    clearance under fixed bridges. Motorists should remember that
    persistent puddles around the times of high tide are almost
    certain to contain a mix of saltwater.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Do not drive through flooded roadways.

    &&