Weather forecast for todayCudjoe Key, FL

Weather forecast for today

Current condition 4:22 am EDT

  • 79°F
  • Feels like:
    79°F
Cloudy
Cloudy
  • Precipitation: 0"
  • Wind: 15mphNNE 30°
  • Humidity: 85%
  • Dewpoint: 73°F
  • Pressure: 29.96"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
At the moment, thick clouds are creating a soft, diffused light over the area.
The temperature is a moderately hot 78.8°F. The current temperature is only a few degrees off the today's maximum of 84.2°F.

Sunday Oct 18, 2026

  • 84°F
  • 77°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 46%
  • Precipitation: 0.28"
  • Wind: 19mphNE 47°
  • Humidity: 80%
  • UV index: 6
  • Sunrise: 7:25 am EDT
  • Sunset: 6:56 pm EDT
  • ▼
On Sunday, in Cudjoe Key, scattered thunderstorms are expected, and a few may bring strong wind gusts.
The chance of rainfall for today is low, and light precipitation is forecasted. Temperature is anticipated to reach a high of a warm 84.2°F during the day, slightly dropping to a low of a moderately hot 77°F at night.
The maximum heat index, which factors the actual air temperature with the relative humidity, is calculated to be a sweltering 95°F. Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
The maximum temperature will align with October's usual high of 82°F.
Sunrise will be at 7:25 am and sunset at 6:56 pm; the daylight will last for 11h and 31min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 93°C.
Coldest period: 5 am - 7 am 77°C.

Chance of precipitation

Highest chance: 5 am 45%.

Hourly weather forecast

  • 6 am
  • 77°F
  • Feels like:
    77°F
Showers
Showers
  • Precip. probability: 42%
  • Precipitation: 0.04"
  • Wind: 16mphNNE 32°
  • Humidity: 90%
  • Pressure: 29.94"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
Sunrise: 7:25 am
  • 8 am
  • 77°F
  • Feels like:
    77°F
Cloudy
Cloudy
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 16mphNE 40°
  • Humidity: 88%
  • Pressure: 29.97"Hg
  • Visibility: 8mi
  • UV index: 0
  • ▼
  • 10 am
  • 81°F
  • Feels like:
    88°F
Cloudy
Cloudy
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 18mphNE 45°
  • Humidity: 79%
  • Pressure: 30"Hg
  • Visibility: 9mi
  • UV index: 1
  • ▼
  • 12 pm
  • 82°F
  • Feels like:
    90°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 19mphNE 51°
  • Humidity: 76%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 2 pm
  • 84°F
  • Feels like:
    93°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Precip. probability: 31%
  • Precipitation: 0.04"
  • Wind: 17mphENE 57°
  • Humidity: 74%
  • Pressure: 29.97"Hg
  • Visibility: 9mi
  • UV index: 4
  • ▼
  • 4 pm
  • 84°F
  • Feels like:
    91°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Precip. probability: 31%
  • Precipitation: 0.04"
  • Wind: 18mphNE 55°
  • Humidity: 74%
  • Pressure: 29.94"Hg
  • Visibility: 6mi
  • UV index: 2
  • ▼
  • 6 pm
  • 82°F
  • Feels like:
    90°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Precip. probability: 34%
  • Precipitation: 0.04"
  • Wind: 18mphNE 51°
  • Humidity: 77%
  • Pressure: 29.94"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Sunset: 6:56 pm
  • 8 pm
  • 81°F
  • Feels like:
    86°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 19mphNE 52°
  • Humidity: 80%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 79°F
  • Feels like:
    86°F
Mostly Cloudy / Wind
Mostly Cloudy / Wind
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 21mphNE 48°
  • Humidity: 81%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Cudjoe Key, a combination of gloomy, thunderstorm-prone and rain-filled weather is anticipated.
With minimal precipitation of 0.04", rainfall is anticipated at 5 am, 6 am, 1 pm, 2 pm, and from 4 pm to 7 pm.
The temperature will vary between a maximum of 84.2°F and a minimum of 77°F. The feels-like temperature will be between the highest temperature of 93.2°F and the lowest temperature of 77°F. The hottest part of the day will be from 1 pm to 4 pm.
The maximum temperature will be resembling the average high of 82°F in October. The nighttime low today will be also comparable to October's typical minimum temperature.
Updated: Oct 18, 2026 @ 08:22:50 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The current temperature (4:22 am EDT) is 78.8°F.

On Sunday, scattered thunderstorms are expected, with a chance of lightning and gusty winds.

With a probability of 46%, light precipitation of 0.28" is predicted.

Today, the highest temperature will be 84.2°F, while the lowest temperature will be 77°F. The maximum heat index, which indicates how humid air affects the felt temperature, is computed to be 95°F.
The maximum temperature today will be in line with the average highest temperature in October. The lowest temperature will be also in line with the average low of 79.7°F.

On Sunday, in Cudjoe Key, sunrise will be at 7:25 am and sunset at 6:56 pm (EDT).

Today, the daylight will last for 11h and 31min.