Weather forecast for tomorrowRiviera Beach, FL

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 81°F
  • 77°F
AM Showers / Wind
AM Showers / Wind
  • Precip. probability: 33%
  • Precipitation: 0.04"
  • Wind: 22mphNE 35°
  • Humidity: 73%
  • UV index: 5
  • Sunrise: 7:21 am EDT
  • Sunset: 6:49 pm EDT
  • ▼
On Sunday, October 18, chilly winds and light passing showers will make for a raw morning.
Minimal precipitation is predicted for tomorrow. Temperature shifts will be modest, ranging from a peak of a warm 80.6°F to a low of a temperate 77°F.
The maximum heat index, which integrates air moisture with ambient temperature, is calculated to be 84.2°F.
Tomorrow's peak temperature is expected to align with October's common high of 81.9°F.
Sunrise will be at 7:21 am and sunset at 6:49 pm; tomorrow's daylight will last for 11h and 28min.

Hourly overview

Hourly temperatures

Warmest period: 9 am - 3 pm 84°C.
Minimum temperature: 82°C.

Chance of precipitation

Highest chance: 3 am 62%.

Hourly weather forecast

  • 12 am
  • 77°F
  • Feels like:
    82°F
Thunderstorms
Thunderstorms
  • Precip. probability: 61%
  • Precipitation: 0.04"
  • Wind: 14mphN 3°
  • Humidity: 88%
  • Pressure: 30"Hg
  • Visibility: 6mi
  • UV index: 0
  • ▼
  • 2 am
  • 77°F
  • Feels like:
    82°F
Thunderstorms
Thunderstorms
  • Precip. probability: 68%
  • Precipitation: 0.04"
  • Wind: 16mphNNE 13°
  • Humidity: 88%
  • Pressure: 29.97"Hg
  • Visibility: 6mi
  • UV index: 0
  • ▼
  • 4 am
  • 77°F
  • Feels like:
    81°F
Showers
Showers
  • Precip. probability: 38%
  • Precipitation: 0.04"
  • Wind: 19mphNNE 20°
  • Humidity: 85%
  • Pressure: 29.97"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 6 am
  • 77°F
  • Feels like:
    82°F
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 19mphNNE 24°
  • Humidity: 83%
  • Pressure: 29.97"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:21 am
  • 8 am
  • 77°F
  • Feels like:
    82°F
Few Showers
Few Showers
  • Precip. probability: 33%
  • Precipitation: 0.04"
  • Wind: 17mphNNE 28°
  • Humidity: 81%
  • Pressure: 30"Hg
  • Visibility: 9mi
  • UV index: 0
  • ▼
  • 10 am
  • 81°F
  • Feels like:
    84°F
Cloudy / Wind
Cloudy / Wind
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 21mphNNE 32°
  • Humidity: 74%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 81°F
  • Feels like:
    84°F
Cloudy / Wind
Cloudy / Wind
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 21mphNE 39°
  • Humidity: 73%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 81°F
  • Feels like:
    86°F
Cloudy / Wind
Cloudy / Wind
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 22mphNE 40°
  • Humidity: 70%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 5
  • ▼
  • 4 pm
  • 81°F
  • Feels like:
    84°F
Mostly Cloudy / Wind
Mostly Cloudy / Wind
  • Precip. probability: 20%
  • Precipitation: 0"
  • Wind: 21mphNE 38°
  • Humidity: 70%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 6 pm
  • 79°F
  • Feels like:
    82°F
Partly Cloudy / Wind
Partly Cloudy / Wind
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 21mphNE 37°
  • Humidity: 70%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:49 pm
  • 8 pm
  • 79°F
  • Feels like:
    82°F
Partly Cloudy / Wind
Partly Cloudy / Wind
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 20mphNE 39°
  • Humidity: 70%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 79°F
  • Feels like:
    82°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 19mphNE 42°
  • Humidity: 71%
  • Pressure: 30.03"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a combination of cloudy, turbulent and rain-soaked weather is expected.
With minimal precipitation of 0.04", rain is forecasted from 12 am to 4 am, 7 am and at 8 am.
The temperature variation will be unnoticeable, with the lowest temperature of 77°F and the highest temperature of 80.6°F. The warmest part of the day will be from 10 am to 5 pm.
Tomorrow, expect conditions close to October's usual high temperature. The lowest temperature tomorrow will be also similar to October's average minimum.
Updated: Oct 17, 2026 @ 16:39:22 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, a brisk and wet morning with scattered showers and gusty winds is expected.

Tomorrow, there is a low chance of minimal precipitation in Riviera Beach.

Tomorrow, the maximum temperature will be 80.6°F, while the minimum temperature will be 77°F. The maximum heat index, which modifies the air temperature to account for humidity, is computed to be 84.2°F.
Tomorrow, the highest temperature 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 Riviera Beach, sunrise will be at 7:21 am and sunset at 6:49 pm (EDT).

Tomorrow, the daylight will last for 11h and 28min.