Weather forecast for 10 daysDismal Key, FL
Weather forecast for the weekend
Sunday Oct 18, 2026
- 84°F
- 72°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 18mphNE 37°
- Humidity: 73%
- UV index: 8
- Sunrise: 7:26 am EDT
- Sunset: 6:55 pm EDT
- details ▼
Today, on Sunday, October 18, mostly clear with scattered clouds is expected.
Temperatures will oscillate between a warm 84.2°F at their highest and a pleasant 71.6°F at their lowest.
The maximum heat index, which indicates how humid air affects the felt temperature, is evaluated at a hot 91.4°F. Note that heat index values are valued for light wind and location in the shade.
The temperature for today is anticipated to correspond with the average October peak of 83.5°F.
Sunrise will be at 7:26 am and sunset at 6:55 pm; the daylight will last for 11h and 29min.
Temperatures will oscillate between a warm 84.2°F at their highest and a pleasant 71.6°F at their lowest.
The maximum heat index, which indicates how humid air affects the felt temperature, is evaluated at a hot 91.4°F. Note that heat index values are valued for light wind and location in the shade.
The temperature for today is anticipated to correspond with the average October peak of 83.5°F.
Sunrise will be at 7:26 am and sunset at 6:55 pm; the daylight will last for 11h and 29min.
10-day overview
Daily temperatures
Warmest day: tomorrow 88°C.
Minimum temperature: 84°C.
Minimum temperature: 84°C.
Chance of precipitation
Highest chance: Tuesday 27.10. 22%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 84°F
- 72°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 18mphNE 37°
- Humidity: 73%
- UV index: 8
- Sunrise: 7:26 am EDT
- Sunset: 6:55 pm EDT
- details ▼
- Monday
- Oct 19, 2026
- 88°F
- 68°F
Mostly Sunny
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 16mphNE 44°
- Humidity: 64%
- UV index: 8
- Sunrise: 7:27 am EDT
- Sunset: 6:55 pm EDT
- details ▼
- Tuesday
- Oct 20, 2026
- 86°F
- 64°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 13mphNNE 30°
- Humidity: 63%
- UV index: 8
- Sunrise: 7:27 am EDT
- Sunset: 6:54 pm EDT
- details ▼
- Wednesday
- Oct 21, 2026
- 86°F
- 66°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 10mphNNE 21°
- Humidity: 62%
- UV index: 8
- Sunrise: 7:28 am EDT
- Sunset: 6:53 pm EDT
- details ▼
- Thursday
- Oct 22, 2026
- 84°F
- 66°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 11mphNNE 24°
- Humidity: 63%
- UV index: 8
- Sunrise: 7:28 am EDT
- Sunset: 6:52 pm EDT
- details ▼
- Friday
- Oct 23, 2026
- 84°F
- 68°F
Mostly Sunny
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 11mphNNE 31°
- Humidity: 61%
- UV index: 8
- Sunrise: 7:29 am EDT
- Sunset: 6:51 pm EDT
- details ▼
- Saturday
- Oct 24, 2026
- 86°F
- 68°F
Mostly Sunny
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 16mphNNE 30°
- Humidity: 64%
- UV index: 8
- Sunrise: 7:30 am EDT
- Sunset: 6:50 pm EDT
- details ▼
- Sunday
- Oct 25, 2026
- 84°F
- 66°F
Mostly Sunny
- Precip. probability: 10%
- Precipitation: 0"
- Wind: 18mphNNE 30°
- Humidity: 66%
- UV index: 8
- Sunrise: 7:30 am EDT
- Sunset: 6:49 pm EDT
- details ▼
- Monday
- Oct 26, 2026
- 84°F
- 66°F
Mostly Sunny
- Precip. probability: 9%
- Precipitation: 0"
- Wind: 16mphNNE 24°
- Humidity: 65%
- UV index: 8
- Sunrise: 7:31 am EDT
- Sunset: 6:49 pm EDT
- details ▼
- Tuesday
- Oct 27, 2026
- 84°F
- 68°F
Mostly Sunny
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 12mphNNE 20°
- Humidity: 64%
- UV index: 8
- Sunrise: 7:31 am EDT
- Sunset: 6:48 pm EDT
- details ▼
Forecasts for the ten-day outlook show that primarily sunny and occasionally dull weather is expected.
Rainfall is not predicted in Dismal Key in the upcoming period.
The maximum temperature will be very similar during the next few days. Maximum temperatures will fall between 84.2°F and 87.8°F, while nighttime temperatures are expected to vary from 64.4°F to 71.6°F.
Expect the hottest day on Monday, with temperatures peaking at 87.8°F; Sunday, Thursday, Friday, next Sunday through next Tuesday, with the highest temperature of 84.2°F, will be the coldest days in Dismal Key, Florida.
Combining with the humidity, the maximum feel-like temperature may increase and range between a blazing 87.8°F and a sizzling 96.8°F.
Rainfall is not predicted in Dismal Key in the upcoming period.
The maximum temperature will be very similar during the next few days. Maximum temperatures will fall between 84.2°F and 87.8°F, while nighttime temperatures are expected to vary from 64.4°F to 71.6°F.
Expect the hottest day on Monday, with temperatures peaking at 87.8°F; Sunday, Thursday, Friday, next Sunday through next Tuesday, with the highest temperature of 84.2°F, will be the coldest days in Dismal Key, Florida.
Combining with the humidity, the maximum feel-like temperature may increase and range between a blazing 87.8°F and a sizzling 96.8°F.
Updated: Oct 18, 2026 @ 09:40:55 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, high-altitude clouds may scatter across the sky, but the sun will still shine.
Today, the highest temperature will be 84.2°F, while the lowest temperature will be 71.6°F. The maximum heat index, which combines air temperature and relative humidity, is appraised at 91.4°F.
The maximum temperature will be in line with the average highest temperature of 83.5°F in October. The lowest temperature will be also in line with the average low of 74.1°F.
The maximum temperature will be in line with the average highest temperature of 83.5°F in October. The lowest temperature will be also in line with the average low of 74.1°F.
On Sunday, in Dismal Key, sunrise will be at 7:26 am and sunset at 6:55 pm (EDT).
In Dismal Key, the length of the day today will be 11h and 29min.





