Weather forecast for tomorrowSurfside, FL

Weather forecast for tomorrow

Sunday Oct 18, 2026

  • 81°F
  • 79°F
Thunderstorms
Thunderstorms
  • Precip. probability: 77%
  • Precipitation: 0.75"
  • Wind: 20mphNE 39°
  • Humidity: 80%
  • UV index: 4
  • Sunrise: 7:20 am EDT
  • Sunset: 6:50 pm EDT
  • ▼
Tomorrow, on Sunday, October 18, thunderstorms are also expected.
The chance of rainfall is high, and precipitation will be moderate. Temperature measurements will peak at a temperate 80.6°F, with a slight decrease to a low of a moderately hot 78.8°F.
The maximum heat index, which calculates the temperature value influenced by the moisture in the air, is calculated to be a tropical 86°F. Note that heat index values are valued for light wind and location in the shade.
Tomorrow's forecasted high will be in line with October's typical peak of 83.3°F.
Sunrise will be at 7:20 am and sunset at 6:50 pm; tomorrow's daylight will last for 11h and 29min.

Hourly overview

Hourly temperatures

Warmest period: 12 pm - 3 pm 86°C.
Coldest hour: 3 am 81°C.

Chance of precipitation

Highest chance: 12 am 83%.

Hourly weather forecast

  • 12 am
  • 77°F
  • Feels like:
    82°F
Heavy Thunderstorms
Heavy Thunderstorms
  • Precip. probability: 83%
  • Precipitation: 0.39"
  • Wind: 11mphN 8°
  • Humidity: 90%
  • Pressure: 29.97"Hg
  • Visibility: 4mi
  • UV index: 0
  • ▼
  • 2 am
  • 77°F
  • Feels like:
    81°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 59%
  • Precipitation: 0.12"
  • Wind: 13mphN 8°
  • Humidity: 91%
  • Pressure: 29.97"Hg
  • Visibility: 7mi
  • UV index: 0
  • ▼
  • 4 am
  • 75°F
  • Feels like:
    81°F
Thunderstorms
Thunderstorms
  • Precip. probability: 64%
  • Precipitation: 0.04"
  • Wind: 13mphN 9°
  • Humidity: 91%
  • Pressure: 29.94"Hg
  • Visibility: 6mi
  • UV index: 0
  • ▼
  • 6 am
  • 77°F
  • Feels like:
    82°F
Thunderstorms
Thunderstorms
  • Precip. probability: 67%
  • Precipitation: 0.04"
  • Wind: 14mphNNE 26°
  • Humidity: 87%
  • Pressure: 29.97"Hg
  • Visibility: 6mi
  • UV index: 0
  • ▼
Sunrise: 7:20 am
  • 8 am
  • 77°F
  • Feels like:
    82°F
Thunderstorms
Thunderstorms
  • Precip. probability: 62%
  • Precipitation: 0.08"
  • Wind: 17mphNE 35°
  • Humidity: 85%
  • Pressure: 29.97"Hg
  • Visibility: 6mi
  • UV index: 0
  • ▼
  • 10 am
  • 79°F
  • Feels like:
    84°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 57%
  • Precipitation: 0.04"
  • Wind: 18mphNE 40°
  • Humidity: 80%
  • Pressure: 30.03"Hg
  • Visibility: 7mi
  • UV index: 2
  • ▼
  • 12 pm
  • 81°F
  • Feels like:
    86°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 55%
  • Precipitation: 0.16"
  • Wind: 19mphNE 41°
  • Humidity: 79%
  • Pressure: 30.03"Hg
  • Visibility: 7mi
  • UV index: 3
  • ▼
  • 2 pm
  • 79°F
  • Feels like:
    84°F
Scattered Thunderstorms
Scattered Thunderstorms
  • Precip. probability: 44%
  • Precipitation: 0.08"
  • Wind: 19mphNE 46°
  • Humidity: 80%
  • Pressure: 30"Hg
  • Visibility: 7mi
  • UV index: 3
  • ▼
  • 4 pm
  • 79°F
  • Feels like:
    84°F
Scattered Thunderstorms / Wind
Scattered Thunderstorms / Wind
  • Precip. probability: 48%
  • Precipitation: 0.04"
  • Wind: 20mphNE 43°
  • Humidity: 78%
  • Pressure: 29.97"Hg
  • Visibility: 6mi
  • UV index: 2
  • ▼
  • 6 pm
  • 79°F
  • Feels like:
    84°F
Scattered Thunderstorms / Wind
Scattered Thunderstorms / Wind
  • Precip. probability: 43%
  • Precipitation: 0.04"
  • Wind: 20mphNE 38°
  • Humidity: 74%
  • Pressure: 29.97"Hg
  • Visibility: 6mi
  • UV index: 0
  • ▼
Sunset: 6:50 pm
  • 8 pm
  • 79°F
  • Feels like:
    84°F
Cloudy
Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 18mphNE 38°
  • Humidity: 73%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 79°F
  • Feels like:
    84°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 18mphNE 40°
  • Humidity: 73%
  • Pressure: 30"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Sunday, a combination of primarily lightning-active and occasionally dull and damp weather is forecasted.
Rainfall is anticipated from 12 am to 7 pm. With elevated precipitation of 0.39", most rainfall is expected at 12 am.
The temperature variation will be unnoticeable, with a minimum of 75.2°F and a maximum of 80.6°F. The warmest part of the day will be at 11 am, noon, 3 pm and 5 pm.
Tomorrow, the forecasted high aligns in line with the average peak in October. The lowest temperature is also alike with October's typical minimum of 76.6°F.
Updated: Oct 17, 2026 @ 16:55:42 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, unstable atmospheric conditions may lead to thunderstorms.

With a probability of 77%, moderate precipitation of 0.75" is predicted.

Tomorrow, the maximum temperature will be 80.6°F, while the minimum temperature will be 78.8°F. The maximum heat index, which combines air temperature and relative humidity, is evaluated at 86°F.
The highest temperature will be in line with the average maximum of 83.3°F in October. The lowest temperature will be also in line with the average low of 76.6°F.

On Sunday, in Surfside, sunrise will be at 7:20 am and sunset at 6:50 pm (EDT).

Tomorrow, the daylight will last for 11h and 29min.