Weather forecast for todayBig Coppitt Key, FL

Weather forecast for today

Current condition 4:07 am EDT

  • 79°F
  • Feels like:
    84°F
Cloudy
Cloudy
  • Precipitation: 0"
  • Wind: 18mphNE 40°
  • Humidity: 84%
  • Dewpoint: 73°F
  • Pressure: 29.96"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
Currently, the horizon is coated in dense cloud cover, keeping the day gray.
The temperature is a temperate 78.8°F, with the feels-like temperature being appraised at a warm 84.2°F. The current temperature is at the minimum anticipated for today.

Sunday Oct 18, 2026

  • 84°F
  • 79°F
Scattered Thunderstorms / Wind
Scattered Thunderstorms / Wind
  • Precip. probability: 36%
  • Precipitation: 0.2"
  • Wind: 21mphNE 48°
  • Humidity: 80%
  • UV index: 6
  • Sunrise: 7:26 am EDT
  • Sunset: 6:57 pm EDT
  • ▼
Today, in Big Coppitt Key, scattered thunderstorms will bring gusty winds and possible lightning.
The likelihood of rain is low, and light precipitation is predicted. Temperature shifts will be minor, ranging from a high of a moderately hot 84.2°F to a low of a temperate 78.8°F.
The maximum heat index, which reflects the perceived temperature due to humidity levels, is evaluated at a sweltering 95°F. Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Forecasts show that today the temperature will align with October's standard maximum of 82°F.
Sunrise will be at 7:26 am and sunset at 6:57 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 84°C.

Chance of precipitation

Highest chance: 5 pm 37%.

Hourly weather forecast

  • 6 am
  • 79°F
  • Feels like:
    84°F
Few Showers
Few Showers
  • Precip. probability: 30%
  • Precipitation: 0.04"
  • Wind: 18mphNE 36°
  • Humidity: 86%
  • Pressure: 29.94"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
Sunrise: 7:26 am
  • 8 am
  • 79°F
  • Feels like:
    84°F
Cloudy
Cloudy
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 19mphNE 41°
  • Humidity: 87%
  • Pressure: 29.97"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 10 am
  • 81°F
  • Feels like:
    88°F
Cloudy / Wind
Cloudy / Wind
  • Precip. probability: 13%
  • Precipitation: 0"
  • Wind: 20mphNE 45°
  • Humidity: 80%
  • Pressure: 30"Hg
  • Visibility: 9mi
  • UV index: 2
  • ▼
  • 12 pm
  • 82°F
  • Feels like:
    90°F
Few Showers / Wind
Few Showers / Wind
  • Precip. probability: 31%
  • Precipitation: 0.04"
  • Wind: 20mphNE 53°
  • Humidity: 77%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 2 pm
  • 84°F
  • Feels like:
    93°F
Isolated Thunderstorms
Isolated Thunderstorms
  • Precip. probability: 32%
  • Precipitation: 0.04"
  • Wind: 18mphENE 59°
  • Humidity: 75%
  • 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: 19mphNE 56°
  • Humidity: 74%
  • Pressure: 29.94"Hg
  • Visibility: 6mi
  • UV index: 2
  • ▼
  • 6 pm
  • 82°F
  • Feels like:
    90°F
Scattered Thunderstorms / Wind
Scattered Thunderstorms / Wind
  • Precip. probability: 36%
  • Precipitation: 0.04"
  • Wind: 20mphNE 52°
  • Humidity: 77%
  • Pressure: 29.94"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
Sunset: 6:57 pm
  • 8 pm
  • 81°F
  • Feels like:
    86°F
Isolated Thunderstorms / Wind
Isolated Thunderstorms / Wind
  • Precip. probability: 31%
  • Precipitation: 0.04"
  • Wind: 22mphNE 53°
  • Humidity: 81%
  • Pressure: 29.97"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 10 pm
  • 81°F
  • Feels like:
    86°F
Mostly Cloudy / Wind
Mostly Cloudy / Wind
  • Precip. probability: 23%
  • Precipitation: 0"
  • Wind: 24mphNE 49°
  • Humidity: 81%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Today, in Big Coppitt Key, a combination of dull, thunderstorm-prone and rainy weather is expected.
With minimal precipitation of 0.04", rain is anticipated at 6 am, and from 12 pm to 8 pm.
The temperature will be between the lowest temperature of 78.8°F and the highest temperature of 84.2°F. The feels-like temperature will vary between a minimum of 84.2°F and a maximum of 93.2°F. The hottest part of the day will be from 1 pm to 4 pm.
The temperature today will be resembling the average high in October. The nighttime low today will be also close to October's typical minimum temperature.
Updated: Oct 18, 2026 @ 08:07:44 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

The temperature at 4:07 am EDT in Big Coppitt Key is 78.8°F. Feels-like temperature is 84.2°F.

On Sunday, scattered thunderstorms will bring intense winds and heavy rain at times.

Light precipitation of 0.2" is anticipated. The chance of rainfall is 36%.

Today, the maximum temperature will be 84.2°F, while the minimum temperature will be 78.8°F. The maximum heat index, which modifies the air temperature to account for humidity, is appraised at 95°F.
The maximum temperature today will be in line with the average highest temperature in October. The lowest temperature today will be also in line with the average low temperature.

On Sunday, in Big Coppitt Key, sunrise will be at 7:26 am and sunset at 6:57 pm (EDT).

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