Weather forecast for tomorrowSanibel, FL

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 86°F
  • 66°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 17mphNE 47°
  • Humidity: 71%
  • UV index: 8
  • Sunrise: 7:29 am EDT
  • Sunset: 6:56 pm EDT
  • ▼
Tomorrow, in Sanibel, blue skies and warm sunshine will define the conditions.
The temperature variation is expected to range from a maximum of a humid 86°F to a minimum of a comfortable 66.2°F.
The maximum heat index, which adjusts the air temperature based on humidity, is assessed at a steamy 95°F. Note that heat index values are valued for light wind and location in the shade. Bear in mind that direct sunshine exposure increases weather impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees.
Expect temperatures to reach October's average high of 82.9°F.
Sunrise will be at 7:29 am and sunset at 6:56 pm; tomorrow's daylight will last for 11h and 27min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 90°C.
Coldest period: 3 am - 6 am 73°C.

Chance of precipitation

Highest chance: 6 am 7%.

Hourly weather forecast

  • 12 am
  • 73°F
  • Feels like:
    75°F
Clear
Clear
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 15mphNE 43°
  • Humidity: 82%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 73°F
  • Feels like:
    75°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 14mphNE 39°
  • Humidity: 85%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 72°F
  • Feels like:
    73°F
Clear
Clear
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 13mphNE 35°
  • Humidity: 87%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 72°F
  • Feels like:
    73°F
Mostly Clear
Mostly Clear
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 12mphNNE 31°
  • Humidity: 90%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:29 am
  • 8 am
  • 72°F
  • Feels like:
    73°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 12mphNNE 33°
  • Humidity: 90%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 77°F
  • Feels like:
    81°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 15mphNE 42°
  • Humidity: 78%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 12 pm
  • 81°F
  • Feels like:
    84°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 17mphNE 55°
  • Humidity: 66%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 7
  • ▼
  • 2 pm
  • 84°F
  • Feels like:
    88°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 16mphENE 57°
  • Humidity: 58%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 8
  • ▼
  • 4 pm
  • 84°F
  • Feels like:
    88°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 17mphNE 54°
  • Humidity: 61%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 4
  • ▼
  • 6 pm
  • 81°F
  • Feels like:
    84°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 17mphNE 51°
  • Humidity: 63%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:56 pm
  • 8 pm
  • 77°F
  • Feels like:
    81°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 14mphNE 47°
  • Humidity: 76%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 75°F
  • Feels like:
    77°F
Clear
Clear
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 16mphNE 43°
  • Humidity: 80%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Monday, a combination of cloudy and sunny weather is predicted.
The temperature will vary between the lowest temperature of 71.6°F and the highest temperature of 84.2°F. The hottest part of the day will be from 2 pm to 4 pm.
The forecasted high will be comparable to the typical October maximum of 82.9°F. The minimum temperature will be more similar to November's average low of 67.8°F than October's typical 74.3°F.
Updated: Oct 18, 2026 @ 13:01:49 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Monday, in Sanibel, mostly sunny weather is likely, with high visibility.

Tomorrow, the highest temperature will be 86°F, while the lowest temperature will be 66.2°F. The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is computed to be 95°F.
The highest temperature will be in line with the average maximum of 82.9°F in October. The lowest temperature will be slightly cooler than the average low of 74.3°F.

On Monday, in Sanibel, sunrise will be at 7:29 am and sunset at 6:56 pm (EDT).

In Sanibel, the length of the day tomorrow will be 11h and 27min.