Weather forecast for tomorrowSunrise Key, FL
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 81°F
- 77°F
Scattered Thunderstorms / Wind
- Precip. probability: 61%
- Precipitation: 0.28"
- Wind: 21mphNE 39°
- Humidity: 76%
- UV index: 4
- Sunrise: 7:21 am EDT
- Sunset: 6:49 pm EDT
- details ▼
Tomorrow, on Sunday, October 18, scattered thunderstorms are expected, with gusty winds making it feel colder.
The likelihood of precipitation is high. However, the rainfall will be light. Slight changes in temperature are predicted, reaching a high of a moderately hot 80.6°F and decreasing to a low of a temperate 77°F.
The maximum heat index, which represents the influence of relative humidity on air temperature, is estimated at 84.2°F.
The anticipated daily high is projected to match October's typical maximum of 82.6°F.
Sunrise will be at 7:21 am and sunset at 6:49 pm; tomorrow's daylight will last for 11h and 29min.
The likelihood of precipitation is high. However, the rainfall will be light. Slight changes in temperature are predicted, reaching a high of a moderately hot 80.6°F and decreasing to a low of a temperate 77°F.
The maximum heat index, which represents the influence of relative humidity on air temperature, is estimated at 84.2°F.
The anticipated daily high is projected to match October's typical maximum of 82.6°F.
Sunrise will be at 7:21 am and sunset at 6:49 pm; tomorrow's daylight will last for 11h and 29min.
Hourly overview
Hourly temperatures
Warmest period: 12 pm - 3 pm 86°C.
Coldest hour: 12 am 77°C.
Coldest hour: 12 am 77°C.
Chance of precipitation
Highest chance: 12 am 100%.
Hourly weather forecast
- 12 am
- 77°F
- Feels like:77°F
Thunderstorms
- Precip. probability: 100%
- Precipitation: 0.04"
- Wind: 12mphN 5°
- Humidity: 91%
- Pressure: 30"Hg
- Visibility: 6mi
- UV index: 0
- details ▼
- 2 am
- 75°F
- Feels like:81°F
Thunderstorms
- Precip. probability: 63%
- Precipitation: 0.04"
- Wind: 13mphN 11°
- Humidity: 90%
- Pressure: 29.97"Hg
- Visibility: 6mi
- UV index: 0
- details ▼
- 4 am
- 75°F
- Feels like:81°F
Thunderstorms
- Precip. probability: 61%
- Precipitation: 0.04"
- Wind: 16mphNNE 18°
- Humidity: 89%
- Pressure: 29.97"Hg
- Visibility: 4mi
- UV index: 0
- details ▼
- 6 am
- 77°F
- Feels like:81°F
Scattered Thunderstorms
- Precip. probability: 48%
- Precipitation: 0.28"
- Wind: 15mphNNE 29°
- Humidity: 87%
- Pressure: 29.97"Hg
- Visibility: 2mi
- UV index: 0
- details ▼
Sunrise: 7:21 am
- 8 am
- 77°F
- Feels like:82°F
Scattered Thunderstorms
- Precip. probability: 39%
- Precipitation: 0.04"
- Wind: 16mphNNE 33°
- Humidity: 84%
- Pressure: 30"Hg
- Visibility: 7mi
- UV index: 0
- details ▼
- 10 am
- 79°F
- Feels like:84°F
Scattered Thunderstorms
- Precip. probability: 38%
- Precipitation: 0.04"
- Wind: 19mphNE 37°
- Humidity: 78%
- Pressure: 30.03"Hg
- Visibility: 7mi
- UV index: 2
- details ▼
- 12 pm
- 81°F
- Feels like:86°F
Isolated Thunderstorms / Wind
- Precip. probability: 30%
- Precipitation: 0.04"
- Wind: 21mphNE 42°
- Humidity: 75%
- Pressure: 30.03"Hg
- Visibility: 9mi
- UV index: 3
- details ▼
- 2 pm
- 81°F
- Feels like:86°F
Few Showers / Wind
- Precip. probability: 33%
- Precipitation: 0.04"
- Wind: 20mphNE 45°
- Humidity: 75%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 4 pm
- 81°F
- Feels like:84°F
Showers / Wind
- Precip. probability: 38%
- Precipitation: 0.04"
- Wind: 19mphNE 43°
- Humidity: 72%
- Pressure: 29.97"Hg
- Visibility: 7mi
- UV index: 3
- details ▼
- 6 pm
- 79°F
- Feels like:84°F
Mostly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 19mphNE 37°
- Humidity: 71%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 6:49 pm
- 8 pm
- 79°F
- Feels like:82°F
Mostly Cloudy
- Precip. probability: 16%
- Precipitation: 0"
- Wind: 17mphNE 41°
- Humidity: 70%
- Pressure: 30"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 79°F
- Feels like:82°F
Partly Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 18mphNE 42°
- Humidity: 71%
- Pressure: 30.03"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, a combination of lightning-active, gloomy and wet weather is expected.
Rainfall is forecasted from 12 am to 2 pm and at 4 pm. With high precipitation of 0.35", most rainfall is expected at 5 am.
The temperature variation will be indistinguishable, with a minimum of 75.2°F and a maximum of 80.6°F. The warmest part of the day will be from 11 am to 5 pm.
The high temperature is expected to be alike with October's usual value of 82.6°F. Tomorrow, the night is expected to be also in line with the typical October low of 77°F.
Rainfall is forecasted from 12 am to 2 pm and at 4 pm. With high precipitation of 0.35", most rainfall is expected at 5 am.
The temperature variation will be indistinguishable, with a minimum of 75.2°F and a maximum of 80.6°F. The warmest part of the day will be from 11 am to 5 pm.
The high temperature is expected to be alike with October's usual value of 82.6°F. Tomorrow, the night is expected to be also in line with the typical October low of 77°F.
Updated: Oct 17, 2026 @ 22:41:50 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
Tomorrow, scattered thunderstorms are expected, with gusty winds making it feel colder.
Light precipitation of 0.28" is anticipated. The chance of rainfall is 61%.
Tomorrow, the highest temperature will be 80.6°F, while the lowest temperature will be 77°F. The maximum heat index, which integrates air moisture with ambient temperature, is calculated to be 84.2°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature will be also in line with the average low of 77°F.
Tomorrow, the maximum temperature will be in line with the average highest temperature in October. The lowest temperature will be also in line with the average low of 77°F.
On Sunday, in Sunrise Key, sunrise will be at 7:21 am and sunset at 6:49 pm (EDT).
Tomorrow, the daylight will last for 11h and 29min.
