Weather forecast for 10 daysSaint Helena Island, SC

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 66°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 17mphNNE 30°
  • Humidity: 53%
  • UV index: 6
  • Sunrise: 7:28 am EDT
  • Sunset: 6:46 pm EDT
  • ▼
On Sunday, in Saint Helena Island, the forecast calls for abundant sunshine.
The temperature is expected to oscillate between a maximum of a comfortable 66.2°F and a minimum of a cool 51.8°F.
Sunrise was at 7:28 am and sunset will be at 6:46 pm; the daylight will last for 11h and 18min.

10-day overview

Daily temperatures

Maximum temperature: 75°C.
Coldest day: today 66°C.

Chance of precipitation

Highest chance: Monday 26.10. 12%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 66°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 17mphNNE 30°
  • Humidity: 53%
  • UV index: 6
  • Sunrise: 7:28 am EDT
  • Sunset: 6:46 pm EDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 70°F
  • 52°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 17mphN 8°
  • Humidity: 59%
  • UV index: 6
  • Sunrise: 7:29 am EDT
  • Sunset: 6:45 pm EDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 75°F
  • 54°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 12mphN 1°
  • Humidity: 48%
  • UV index: 6
  • Sunrise: 7:29 am EDT
  • Sunset: 6:44 pm EDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 75°F
  • 54°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 10mphN 6°
  • Humidity: 50%
  • UV index: 6
  • Sunrise: 7:30 am EDT
  • Sunset: 6:42 pm EDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 75°F
  • 55°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 7mphN 9°
  • Humidity: 57%
  • UV index: 6
  • Sunrise: 7:31 am EDT
  • Sunset: 6:41 pm EDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 73°F
  • 55°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 11mphNE 34°
  • Humidity: 55%
  • UV index: 6
  • Sunrise: 7:32 am EDT
  • Sunset: 6:40 pm EDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 70°F
  • 55°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 15mphNNE 31°
  • Humidity: 66%
  • UV index: 6
  • Sunrise: 7:33 am EDT
  • Sunset: 6:39 pm EDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 72°F
  • 55°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 15mphNNE 25°
  • Humidity: 67%
  • UV index: 6
  • Sunrise: 7:33 am EDT
  • Sunset: 6:38 pm EDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 73°F
  • 55°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 12%
  • Precipitation: 0"
  • Wind: 12mphNNE 16°
  • Humidity: 63%
  • UV index: 6
  • Sunrise: 7:34 am EDT
  • Sunset: 6:37 pm EDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 75°F
  • 57°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 11mphNNE 15°
  • Humidity: 56%
  • UV index: 6
  • Sunrise: 7:35 am EDT
  • Sunset: 6:36 pm EDT
  • ▼
Conditions over the next ten days suggest that primarily bright and occasionally overcast weather is predicted.
Rainfall is not forecasted in Saint Helena Island in the upcoming period.
In the upcoming days, the highest temperature will range between 66.2°F and 75.2°F, while changes in the overnight low will be barely noticeable, as night temperatures will lie between 51.8°F and 57.2°F.
The warmest days will be Tuesday through Thursday and next Tuesday, with a maximum of 75.2°F; today is the coldest day, with a maximum temperature of 66.2°F.
Updated: Oct 18, 2026 @ 18:40:51 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, skies are expected to be clear and full of sunshine.

Today, the maximum temperature will be 66.2°F, while the minimum temperature will be 51.8°F.

On Sunday, in Saint Helena Island, sunrise was at 7:28 am and sunset will be at 6:46 pm (EDT).

In Saint Helena Island, the length of the day today will be 11h and 18min.