Weather forecast for 10 daysKey Biscayne, FL
10-day overview
Daily temperatures
Warmest period: Tuesday - Friday 82°C.
Coldest period: tomorrow - Monday 81°C.
Coldest period: tomorrow - Monday 81°C.
Chance of precipitation
Highest chance: Sunday 86%.
Long-term weather forecast
- Wednesday
- Oct 21, 2026
- min.
- 72°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 12mphN 354°
- Humidity: 72%
- UV index: 0
- Sunrise: 7:22 am EDT
- Sunset: 6:47 pm EDT
- details ▼
- Thursday
- Oct 22, 2026
- 81°F
- 72°F
PM Thunderstorms
- Precip. probability: 42%
- Precipitation: 0.28"
- Wind: 16mphN 7°
- Humidity: 75%
- UV index: 7
- Sunrise: 7:23 am EDT
- Sunset: 6:47 pm EDT
- details ▼
- Friday
- Oct 23, 2026
- 81°F
- 73°F
Isolated Thunderstorms
- Precip. probability: 38%
- Precipitation: 0.31"
- Wind: 18mphNNE 25°
- Humidity: 70%
- UV index: 8
- Sunrise: 7:23 am EDT
- Sunset: 6:46 pm EDT
- details ▼
- Saturday
- Oct 24, 2026
- 81°F
- 73°F
Thunderstorms
- Precip. probability: 65%
- Precipitation: 0.94"
- Wind: 18mphNNE 30°
- Humidity: 67%
- UV index: 8
- Sunrise: 7:24 am EDT
- Sunset: 6:45 pm EDT
- details ▼
- Sunday
- Oct 25, 2026
- 81°F
- 73°F
Thunderstorms / Wind
- Precip. probability: 86%
- Precipitation: 0.75"
- Wind: 21mphNNE 32°
- Humidity: 75%
- UV index: 6
- Sunrise: 7:24 am EDT
- Sunset: 6:44 pm EDT
- details ▼
- Monday
- Oct 26, 2026
- 81°F
- 75°F
Thunderstorms / Wind
- Precip. probability: 80%
- Precipitation: 0.63"
- Wind: 21mphNNE 32°
- Humidity: 73%
- UV index: 7
- Sunrise: 7:25 am EDT
- Sunset: 6:43 pm EDT
- details ▼
- Tuesday
- Oct 27, 2026
- 82°F
- 73°F
Showers
- Precip. probability: 50%
- Precipitation: 0.35"
- Wind: 17mphNE 37°
- Humidity: 68%
- UV index: 7
- Sunrise: 7:26 am EDT
- Sunset: 6:42 pm EDT
- details ▼
- Wednesday
- Oct 28, 2026
- 82°F
- 75°F
Showers
- Precip. probability: 54%
- Precipitation: 0.16"
- Wind: 14mphNE 36°
- Humidity: 69%
- UV index: 8
- Sunrise: 7:26 am EDT
- Sunset: 6:42 pm EDT
- details ▼
- Thursday
- Oct 29, 2026
- 82°F
- 75°F
Showers
- Precip. probability: 38%
- Precipitation: 0.08"
- Wind: 13mphNNE 31°
- Humidity: 72%
- UV index: 7
- Sunrise: 7:27 am EDT
- Sunset: 6:41 pm EDT
- details ▼
- Friday
- Oct 30, 2026
- 82°F
- 75°F
Mostly Sunny
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 13mphNE 37°
- Humidity: 75%
- UV index: 7
- Sunrise: 7:27 am EDT
- Sunset: 6:40 pm EDT
- details ▼
And a mix of lightning-active, rain-filled, cloud-filled and clear weather is anticipated.
Rainfall is forecasted nearly every day for the next ten days.
Temperature differences will be unnoticeable in the upcoming days. Expected highs will hover between 80.6°F and 82.4°F, while the nighttime low will be also mostly stable, as the lowest temperatures will remain in the range of 71.6°F to 75.2°F.
Tuesday through next Friday, with the highest temperature of 82.4°F, will be the warmest days in Key Biscayne; for the remaining days, the highest temperature will consistently be 80.6°F.
Rainfall is forecasted nearly every day for the next ten days.
Temperature differences will be unnoticeable in the upcoming days. Expected highs will hover between 80.6°F and 82.4°F, while the nighttime low will be also mostly stable, as the lowest temperatures will remain in the range of 71.6°F to 75.2°F.
Tuesday through next Friday, with the highest temperature of 82.4°F, will be the warmest days in Key Biscayne; for the remaining days, the highest temperature will consistently be 80.6°F.
Updated: Oct 21, 2026 @ 21:57:46 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
In Key Biscayne, weather will be unstable, and a combination of storm-filled, rainy, dull and dry and sunny weather is expected for the next ten days.
In Key Biscayne, rainfall is expected almost every day for the next ten days. Saturday, with high precipitation of 0.94", will be the day with the most rainfall.
The maximum temperature will vary between 80.6°F and 82.4°F, while the minimum temperature will range between 71.6°F and 75.2°F.
With a maximum temperature of 82.4°F, Tuesday through next Friday will be the warmest days. All other days, the maximum temperature will be the same 80.6°F.
On Saturday, unstable skies bring the chance of thunderstorms.
Yes. With a probability of 65%, substantial precipitation of 0.94" is expected on Saturday.
On Saturday, the maximum temperature will be 80.6°F, while the minimum temperature will be 73.4°F.
On Sunday, gusty winds may accompany thunderstorm activity.
Moderate precipitation of 0.75" is predicted on Sunday. The possibility of rainfall is high at 86%.
On Sunday, the highest temperature will be 80.6°F, while the lowest temperature will be 73.4°F.
