Weather forecast for 10 days
Duck Key, FL

Weather forecast for the weekend

Saturday, Jun 21.

Partly Cloudy
6:34 am

8:17 pm
EDT
Partly Cloudy
86°F / 81°F
  • Wind: 11mph ESE
  • Humidity: 70%
  • Precip. probability: 24%
  • Precipitation: 0"
  • UV index: 10
Tomorrow, on Saturday, June 21, expect a mix of sun and clouds throughout the day.
A narrow temperature span is anticipated, from a high of a hot 86°F to a low of a moderately hot 80.6°F.
The maximum heat index, which adjusts the air temperature based on humidity, is calculated to be a sizzling 95°F. Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
The anticipated maximum temperature will closely reflect June's average high of 83.5°F.
Sunrise will be at 6:34 am and sunset at 8:17 pm; tomorrow's daylight will last for 13h and 43min.

Sunday, Jun 22.

Partly Cloudy
6:34 am

8:17 pm
EDT
Partly Cloudy
86°F / 81°F
  • Wind: 14mph E
  • Humidity: 74%
  • Precip. probability: 24%
  • Precipitation: 0"
  • UV index: 10
On Sunday, in Duck Key, moments of sunshine will break through the patchy clouds.
Temperature is anticipated to reach a high of a blazing 86°F during the day, slightly dropping to a low of a temperate 80.6°F at night.
Sunday's maximum temperature is expected to reflect the standard June high of 83.5°F.
Sunrise will be at 6:34 am and sunset at 8:17 pm; the daylight will last for 13h and 43min.

Frequently asked questions

What is the weather forecast for Duck Key for tomorrow?
On Saturday, in Duck Key, a pleasant mix of sun and clouds will define the day.
What will be the highest temperature tomorrow?
Tomorrow, the maximum temperature will be 86°F, while the minimum temperature will be 80.6°F. The maximum heat index, which indicates how humid air affects the felt temperature, is calculated to be 95°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature in June. Tomorrow, the lowest temperature will be also in line with the average low temperature.
When are sunrise and sunset tomorrow in Duck Key?
On Saturday, in Duck Key, sunrise will be at 6:34 am and sunset at 8:17 pm (EDT).
How many hours of daylight will Duck Key have tomorrow?
In Duck Key, tomorrow, there will be 13h and 43min of daylight.
What is the weather forecast for Duck Key for Sunday?
On Sunday, in Duck Key, expect a partly sunny afternoon with variable cloud cover.
What will be the highest temperature on Sunday?
On Sunday, the highest temperature will be 86°F, while the lowest temperature will be 80.6°F.
What is the weather forecast for Duck Key for the next ten days?
In Duck Key, expect mostly cloudy skies for the next ten days.
How hot will it be in the next ten days?
The maximum temperature will vary between 84.2°F and 86°F, while the minimum temperature will range between 80.6°F and 82.4°F.
Combining with the humidity, the maximum feel-like temperature will range between 91.4°F and 96.8°F.
What will be the hottest and the coldest days?
For the next ten days, almost every day, the maximum temperature will be the same 86°F. With a maximum temperature of 84.2°F, Wednesday and Thursday will be the coldest days.

Long-term weather forecast

FriJun 20.
  • 86°F
  • 81°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph E
  • Humidity: 69%
  • UV index: 11
  • Precip. probability: 7%
  • Precipitation: 0"
  • 6:33 am 8:16 pm EDT
SatJun 21.
  • 86°F
  • 81°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph ESE
  • Humidity: 70%
  • UV index: 10
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:34 am 8:17 pm EDT
SunJun 22.
  • 86°F
  • 81°F
Partly Cloudy
Partly Cloudy
  • Wind: 14mph E
  • Humidity: 74%
  • UV index: 10
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:34 am 8:17 pm EDT
MonJun 23.
  • 86°F
  • 81°F
Partly Cloudy
Partly Cloudy
  • Wind: 17mph E
  • Humidity: 71%
  • UV index: 10
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:34 am 8:17 pm EDT
TueJun 24.
  • 86°F
  • 81°F
Mostly Cloudy
Mostly Cloudy
  • Wind: 17mph E
  • Humidity: 71%
  • UV index: 10
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:34 am 8:17 pm EDT
WedJun 25.
  • 84°F
  • 81°F
Partly Cloudy
Partly Cloudy
  • Wind: 14mph E
  • Humidity: 74%
  • UV index: 10
  • Precip. probability: 22%
  • Precipitation: 0"
  • 6:35 am 8:17 pm EDT
ThuJun 26.
  • 84°F
  • 81°F
Partly Cloudy
Partly Cloudy
  • Wind: 12mph E
  • Humidity: 76%
  • UV index: 11
  • Precip. probability: 24%
  • Precipitation: 0"
  • 6:35 am 8:17 pm EDT
FriJun 27.
  • 86°F
  • 82°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph ESE
  • Humidity: 74%
  • UV index: 11
  • Precip. probability: 19%
  • Precipitation: 0"
  • 6:35 am 8:18 pm EDT
SatJun 28.
  • 86°F
  • 81°F
Partly Cloudy
Partly Cloudy
  • Wind: 11mph ESE
  • Humidity: 73%
  • UV index: 11
  • Precip. probability: 19%
  • Precipitation: 0"
  • 6:35 am 8:18 pm EDT
SunJun 29.
  • 86°F
  • 81°F
Partly Cloudy
Partly Cloudy
  • Wind: 9mph ESE
  • Humidity: 73%
  • UV index: 11
  • Precip. probability: 18%
  • Precipitation: 0"
  • 6:36 am 8:18 pm EDT
Throughout the next ten days, cloudy conditions are likely to prevail.
Rainfall is not anticipated in Duck Key in the upcoming period.
The maximum temperature will be almost identical across the forecast window. Highs will range from 84.2°F to 86°F, while the overnight low will be also nearly unchanged, as the lowest temperatures will remain in the range of 80.6°F to 82.4°F.
The forecast suggests a consistent pattern, with daily highs hovering at 86°F for most of the next ten days; Wednesday and Thursday, with the highest temperature of 84.2°F, will be the coldest days.
Including the humidity's impact, the maximum feel-like temperature may increase greatly and range between a humid 91.4°F and a steamy 96.8°F.
Updated: Jun 20, 2025 @ 12:22:59 UTC
Published by: Weather U.S. | About Us
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