Weather forecast for tomorrowSaint Simons Island, GA

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 70°F
  • 54°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 17mphN 8°
  • Humidity: 61%
  • UV index: 7
  • Sunrise: 7:31 am EDT
  • Sunset: 6:49 pm EDT
  • ▼
On Monday, October 19, sunshine and minimal clouds are in the outlook.
Temperature is forecasted to swing from a high of an agreeable 69.8°F to a low of a crisp 53.6°F.
An unusual colder pattern is expected, as the day’s high matches November's typical max of 68.9°F.
Sunrise will be at 7:31 am and sunset at 6:49 pm; tomorrow's daylight will last for 11h and 19min.

Hourly overview

Hourly temperatures

Warmest period: 3 pm - 6 pm 68°C.
Coldest period: 6 am - 9 am 57°C.

Chance of precipitation

Highest chance: 3 am - 9 am 2%.

Hourly weather forecast

  • 12 am
  • 64°F
  • Feels like:
    64°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 17mphNNE 18°
  • Humidity: 69%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 63°F
  • Feels like:
    61°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 17mphNNE 14°
  • Humidity: 75%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 61°F
  • Feels like:
    57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 17mphN 9°
  • Humidity: 77%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 57°F
  • Feels like:
    55°F
Mostly Clear
Mostly Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 16mphN 3°
  • Humidity: 80%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:31 am
  • 8 am
  • 57°F
  • Feels like:
    52°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 17mphN 356°
  • Humidity: 82%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 59°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 17mphN 4°
  • Humidity: 68%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 66°F
  • Feels like:
    66°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 17mphN 8°
  • Humidity: 57%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 6
  • ▼
  • 2 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 16mphNNE 17°
  • Humidity: 50%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 6
  • ▼
  • 4 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphNNE 19°
  • Humidity: 49%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 6 pm
  • 68°F
  • Feels like:
    68°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphNNE 14°
  • Humidity: 50%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:49 pm
  • 8 pm
  • 64°F
  • Feels like:
    64°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphN 357°
  • Humidity: 58%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 63°F
  • Feels like:
    63°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 7mphN 359°
  • Humidity: 63%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Monday, a combination of gloomy and sun-filled weather is predicted.
The temperature will vary between the lowest temperature of 57.2°F and the highest temperature of 68°F. The warmest part of the day will be from 1 pm to 6 pm.
The expected temperature aligns more with November's average high than with October's 77.9°F. Forecast models suggest a low also more resembling November's typical minimum of 57.6°F than October's usual 66.6°F.
Updated: Oct 18, 2026 @ 07:07:57 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Monday, sun-filled conditions are expected to persist.

Tomorrow, the maximum temperature will be 69.8°F, while the minimum temperature will be 53.6°F.
The highest temperature will be a few degrees lower than the average maximum of 77.9°F in October. The lowest temperature will be notably lower than the average low of 66.6°F.

On Monday, in Saint Simons Island, sunrise will be at 7:31 am and sunset at 6:49 pm (EDT).

In Saint Simons Island, the length of the day tomorrow will be 11h and 19min.