Weather forecast for 10 daysLongboat Key, FL
Weather forecast for the weekend
Sunday Oct 18, 2026
- 82°F
- 68°F
Mostly Sunny / Wind
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 20mphNE 50°
- Humidity: 66%
- UV index: 8
- Sunrise: 7:32 am EDT
- Sunset: 6:59 pm EDT
- details ▼
On Sunday, October 18, sunny weather will prevail, but winds will remain steady.
The maximum temperature will be a warm 82.4°F, while the minimum temperature will be an agreeable 68°F.
The maximum heat index, which represents the influence of relative humidity on air temperature, is calculated to be a tropical 86°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 82.6°F.
Sunrise was at 7:32 am and sunset will be at 6:59 pm; the daylight will last for 11h and 26min.
The maximum temperature will be a warm 82.4°F, while the minimum temperature will be an agreeable 68°F.
The maximum heat index, which represents the influence of relative humidity on air temperature, is calculated to be a tropical 86°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 82.6°F.
Sunrise was at 7:32 am and sunset will be at 6:59 pm; the daylight will last for 11h and 26min.
10-day overview
Daily temperatures
Warmest period: today - tomorrow 82°C.
Coldest period: Sunday - Tuesday 79°C.
Coldest period: Sunday - Tuesday 79°C.
Chance of precipitation
Highest chance: Monday 26.10. 15%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 82°F
- 68°F
Mostly Sunny / Wind
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 20mphNE 50°
- Humidity: 66%
- UV index: 8
- Sunrise: 7:32 am EDT
- Sunset: 6:59 pm EDT
- details ▼
- Monday
- Oct 19, 2026
- 82°F
- 64°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 17mphNE 46°
- Humidity: 71%
- UV index: 8
- Sunrise: 7:32 am EDT
- Sunset: 6:58 pm EDT
- details ▼
- Tuesday
- Oct 20, 2026
- 81°F
- 64°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 12mphNE 35°
- Humidity: 66%
- UV index: 8
- Sunrise: 7:33 am EDT
- Sunset: 6:57 pm EDT
- details ▼
- Wednesday
- Oct 21, 2026
- 81°F
- 66°F
Mostly Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 11mphNNE 28°
- Humidity: 64%
- UV index: 8
- Sunrise: 7:34 am EDT
- Sunset: 6:56 pm EDT
- details ▼
- Thursday
- Oct 22, 2026
- 81°F
- 64°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 11mphNNE 23°
- Humidity: 57%
- UV index: 7
- Sunrise: 7:34 am EDT
- Sunset: 6:55 pm EDT
- details ▼
- Friday
- Oct 23, 2026
- 81°F
- 66°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 12mphNNE 33°
- Humidity: 59%
- UV index: 7
- Sunrise: 7:35 am EDT
- Sunset: 6:54 pm EDT
- details ▼
- Saturday
- Oct 24, 2026
- 81°F
- 68°F
Mostly Sunny
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 19mphNE 38°
- Humidity: 67%
- UV index: 7
- Sunrise: 7:36 am EDT
- Sunset: 6:53 pm EDT
- details ▼
- Sunday
- Oct 25, 2026
- 79°F
- 66°F
Mostly Sunny / Wind
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 21mphNE 35°
- Humidity: 68%
- UV index: 7
- Sunrise: 7:36 am EDT
- Sunset: 6:52 pm EDT
- details ▼
- Monday
- Oct 26, 2026
- 79°F
- 66°F
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 17mphNNE 28°
- Humidity: 66%
- UV index: 7
- Sunrise: 7:37 am EDT
- Sunset: 6:51 pm EDT
- details ▼
- Tuesday
- Oct 27, 2026
- 79°F
- 66°F
Partly Cloudy
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 14mphNNE 18°
- Humidity: 67%
- UV index: 7
- Sunrise: 7:37 am EDT
- Sunset: 6:51 pm EDT
- details ▼
It is expected that primarily mostly clear and occasionally gloomy weather is expected.
Rainfall is not predicted in Longboat Key in the upcoming period.
Highs will stay within a very narrow margin across the forecast window. Maximum temperatures will fall between 78.8°F and 82.4°F, while the lowest nightly temperature differences will be also negligible, as the minimum temperature will fluctuate between 64.4°F and 68°F.
Sunday and Monday, with the highest temperature of 82.4°F, will be the warmest days; the coldest days will be next Sunday through next Tuesday, with a maximum of 78.8°F.
Rainfall is not predicted in Longboat Key in the upcoming period.
Highs will stay within a very narrow margin across the forecast window. Maximum temperatures will fall between 78.8°F and 82.4°F, while the lowest nightly temperature differences will be also negligible, as the minimum temperature will fluctuate between 64.4°F and 68°F.
Sunday and Monday, with the highest temperature of 82.4°F, will be the warmest days; the coldest days will be next Sunday through next Tuesday, with a maximum of 78.8°F.
Updated: Oct 18, 2026 @ 12:32:05 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
Today, in Longboat Key, mostly sunny skies with strong breezes at times are expected.
Today, the highest temperature in Longboat Key will be 82.4°F, while the lowest temperature will be 68°F. The maximum heat index, which combines relative humidity and air temperature, is estimated at 86°F.
The highest temperature today will be in line with the average maximum temperature in October. Today, the lowest temperature will be slightly cooler than the average low temperature.
The highest temperature today will be in line with the average maximum temperature in October. Today, the lowest temperature will be slightly cooler than the average low temperature.
On Sunday, in Longboat Key, sunrise was at 7:32 am and sunset will be at 6:59 pm (EDT).
Today, the daylight will last for 11h and 26min.





