Weather forecast for 10 daysFleming Key, FL

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 84°F
  • 79°F
PM Thunderstorms / Wind
PM Thunderstorms / Wind
  • Precip. probability: 40%
  • Precipitation: 0.16"
  • Wind: 21mphNE 48°
  • Humidity: 80%
  • UV index: 7
  • Sunrise: 7:26 am EDT
  • Sunset: 6:57 pm EDT
  • ▼
On Sunday, in Fleming Key, strong winds and thunderstorms are anticipated as the afternoon progresses.
The likelihood of rain for tomorrow is low, and light precipitation is predicted. A mild temperature range, peaking at a moderately hot 84.2°F and bottoming out at a temperate 78.8°F, is forecasted.
The maximum heat index, which indicates how humid air affects the felt temperature, is appraised at a torrid 95°F. Take into consideration that the heat index values are calculated for shade and light wind conditions. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
Sunrise will be at 7:26 am and sunset at 6:57 pm; tomorrow's daylight will last for 11h and 31min.

10-day overview

Daily temperatures

Warmest day: Monday 86°C.
Coldest period: Sunday - Monday 81°C.

Chance of precipitation

Highest chance: today 58%.

Long-term weather forecast

  • Saturday
  • Oct 17, 2026
  • min.
  • 77°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 58%
  • Precipitation: 0.04"
  • Wind: 19mphNNE 33°
  • Humidity: 87%
  • UV index: 0
  • Sunrise: 7:26 am EDT
  • Sunset: 6:58 pm EDT
  • ▼
  • Sunday
  • Oct 18, 2026
  • 84°F
  • 79°F
PM Thunderstorms / Wind
PM Thunderstorms / Wind
  • Precip. probability: 40%
  • Precipitation: 0.16"
  • Wind: 21mphNE 48°
  • Humidity: 80%
  • UV index: 7
  • Sunrise: 7:26 am EDT
  • Sunset: 6:57 pm EDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 86°F
  • 77°F
Partly Cloudy / Wind
Partly Cloudy / Wind
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 21mphENE 57°
  • Humidity: 71%
  • UV index: 9
  • Sunrise: 7:27 am EDT
  • Sunset: 6:57 pm EDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 84°F
  • 77°F
Mostly Sunny / Wind
Mostly Sunny / Wind
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 21mphNE 44°
  • Humidity: 72%
  • UV index: 9
  • Sunrise: 7:27 am EDT
  • Sunset: 6:56 pm EDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 82°F
  • 77°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 16mphNE 35°
  • Humidity: 67%
  • UV index: 9
  • Sunrise: 7:28 am EDT
  • Sunset: 6:55 pm EDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 82°F
  • 77°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 15mphNNE 33°
  • Humidity: 65%
  • UV index: 8
  • Sunrise: 7:28 am EDT
  • Sunset: 6:54 pm EDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 82°F
  • 77°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 14mphNE 39°
  • Humidity: 66%
  • UV index: 8
  • Sunrise: 7:29 am EDT
  • Sunset: 6:53 pm EDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 82°F
  • 75°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.04"
  • Wind: 17mphNE 38°
  • Humidity: 70%
  • UV index: 8
  • Sunrise: 7:29 am EDT
  • Sunset: 6:53 pm EDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 81°F
  • 75°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0.04"
  • Wind: 19mphNNE 31°
  • Humidity: 73%
  • UV index: 8
  • Sunrise: 7:30 am EDT
  • Sunset: 6:52 pm EDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 81°F
  • 75°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 17mphNNE 24°
  • Humidity: 70%
  • UV index: 8
  • Sunrise: 7:30 am EDT
  • Sunset: 6:51 pm EDT
  • ▼
Looking ahead, conditions suggest a period of dull, stormy and dry and sunny weather is expected.
Rain is expected on Saturday, Sunday, next Saturday and Sunday.
The maximum temperature will be almost identical during the next few days. Highs will range from 80.6°F to 86°F, while the nighttime low will be also mostly stable, as the minimum temperature will fluctuate between 75.2°F and 78.8°F.
Expect the hottest day on Monday, with temperatures peaking at 86°F; next Sunday and Monday, with the highest temperature of 80.6°F, will be the coldest days.
Including the humidity's impact, the maximum feel-like temperature may increase and range between 84.2°F and a sweltering 95°F.
Updated: Oct 18, 2026 @ 01:07:33 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, thunderstorms are expected, bringing windy conditions later in the day.

Light precipitation of 0.16" is forecasted. The possibility of rainfall is 40%.

Tomorrow, the highest temperature in Fleming Key will be 84.2°F, while the lowest temperature will be 78.8°F. The maximum heat index, which combines air temperature and relative humidity, is estimated at 95°F.

On Sunday, in Fleming Key, sunrise will be at 7:26 am and sunset at 6:57 pm (EDT).

Tomorrow, the daylight will last for 11h and 31min.