Weather forecast for tomorrowIslandia, FL

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 81°F
  • 79°F
Heavy Thunderstorms / Wind
Heavy Thunderstorms / Wind
  • Precip. probability: 69%
  • Precipitation: 1.18"
  • Wind: 24mphNE 36°
  • Humidity: 82%
  • UV index: 4
  • Sunrise: 7:21 am EDT
  • Sunset: 6:51 pm EDT
  • ▼
On Sunday, in Islandia, expect frequent thunder and gusty winds as storms move through.
Substantial precipitation is anticipated for tomorrow. The day's temperature scale will range from a moderate high of a moderately hot 80.6°F to a minimum of a temperate 78.8°F.
The maximum heat index, which modifies the air temperature to account for humidity, is computed to be a blazing 86°F. Note that heat index values are valued for light wind and location in the shade.
The temperature will be in line with October's average maximum of 84.2°F.
Sunrise will be at 7:21 am and sunset at 6:51 pm; tomorrow's daylight will last for 11h and 30min.

Hourly overview

Hourly temperatures

Warmest hour: 12 pm 88°C.
Minimum temperature: 84°C.

Chance of precipitation

Highest chance: 9 am 63%.

Hourly weather forecast

  • 12 am
  • 79°F
  • Feels like:
    84°F
Few Showers
Few Showers
  • Precip. probability: 36%
  • Precipitation: 0"
  • Wind: 15mphN 2°
  • Humidity: 87%
  • Pressure: 29.97"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 2 am
  • 79°F
  • Feels like:
    84°F
Showers
Showers
  • Precip. probability: 36%
  • Precipitation: 0.04"
  • Wind: 16mphN 7°
  • Humidity: 87%
  • Pressure: 29.97"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 4 am
  • 79°F
  • Feels like:
    84°F
Cloudy
Cloudy
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 16mphN 3°
  • Humidity: 87%
  • Pressure: 29.94"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 6 am
  • 79°F
  • Feels like:
    84°F
Showers
Showers
  • Precip. probability: 43%
  • Precipitation: 0.04"
  • Wind: 17mphNNE 13°
  • Humidity: 87%
  • Pressure: 29.94"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
Sunrise: 7:21 am
  • 8 am
  • 79°F
  • Feels like:
    86°F
Thunderstorms
Thunderstorms
  • Precip. probability: 65%
  • Precipitation: 0.08"
  • Wind: 18mphNNE 25°
  • Humidity: 86%
  • Pressure: 29.97"Hg
  • Visibility: 6mi
  • UV index: 0
  • ▼
  • 10 am
  • 81°F
  • Feels like:
    86°F
Thunderstorms / Wind
Thunderstorms / Wind
  • Precip. probability: 70%
  • Precipitation: 0.16"
  • Wind: 21mphNE 36°
  • Humidity: 83%
  • Pressure: 30"Hg
  • Visibility: 5mi
  • UV index: 1
  • ▼
  • 12 pm
  • 81°F
  • Feels like:
    88°F
Thunderstorms / Wind
Thunderstorms / Wind
  • Precip. probability: 61%
  • Precipitation: 0.04"
  • Wind: 21mphNE 40°
  • Humidity: 81%
  • Pressure: 30"Hg
  • Visibility: 6mi
  • UV index: 3
  • ▼
  • 2 pm
  • 81°F
  • Feels like:
    88°F
Scattered Thunderstorms / Wind
Scattered Thunderstorms / Wind
  • Precip. probability: 43%
  • Precipitation: 0.08"
  • Wind: 21mphNE 43°
  • Humidity: 81%
  • Pressure: 29.97"Hg
  • Visibility: 7mi
  • UV index: 3
  • ▼
  • 4 pm
  • 81°F
  • Feels like:
    86°F
Scattered Thunderstorms / Wind
Scattered Thunderstorms / Wind
  • Precip. probability: 48%
  • Precipitation: 0.08"
  • Wind: 22mphNE 42°
  • Humidity: 81%
  • Pressure: 29.94"Hg
  • Visibility: 7mi
  • UV index: 2
  • ▼
  • 6 pm
  • 81°F
  • Feels like:
    86°F
Showers / Wind
Showers / Wind
  • Precip. probability: 43%
  • Precipitation: 0.08"
  • Wind: 24mphNE 40°
  • Humidity: 78%
  • Pressure: 29.94"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
Sunset: 6:51 pm
  • 8 pm
  • 79°F
  • Feels like:
    84°F
Showers / Wind
Showers / Wind
  • Precip. probability: 40%
  • Precipitation: 0.04"
  • Wind: 22mphNE 38°
  • Humidity: 80%
  • Pressure: 29.97"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 10 pm
  • 81°F
  • Feels like:
    86°F
Mostly Cloudy / Wind
Mostly Cloudy / Wind
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 22mphNE 39°
  • Humidity: 77%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a combination of rain-filled, unstable and cloudy weather is predicted.
Rain is expected practically throughout the entire day. With elevated precipitation of 0.47", most rainfall is expected at 9 am.
The temperature variation will be unnoticeable, with a minimum of 78.8°F and a maximum of 80.6°F. The feels-like temperature difference throughout the day will be unnoticeable, with a minimum of 84.2°F and a maximum of 87.8°F.
The maximum temperature will be close to October's average highest temperature of 84.2°F. The night temperature will be also consistent with the standard October low of 76.3°F.
Updated: Oct 18, 2026 @ 02:54:52 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, heavy rainfall and thunderstorms will be accompanied by strong wind gusts.

Yes, it will rain tomorrow. High precipitation of 1.18" is forecasted.

Tomorrow, the highest temperature will be 80.6°F, while the lowest temperature will be 78.8°F. The maximum heat index, which combines air temperature and relative humidity, is appraised at 86°F.
The highest temperature tomorrow will be in line with the average maximum temperature in October. Tomorrow, the lowest temperature will be also in line with the average low temperature.

On Sunday, in Islandia, sunrise will be at 7:21 am and sunset at 6:51 pm (EDT).

In Islandia, the length of the day tomorrow will be 11h and 30min.