Local Forecast

St Helena Island, SC Weather Forecast & Alerts

Current conditions, 5-day forecast, active weather alerts for St Helena Island, SC

No Active Alerts

Hour-by-Hour  Current Observation

Tuesday 7:29 AM EDTTuesday 7:29 AM

°F °C
Regional Observations →
84°F

Mostly Cloudy

  • 91° / 82° High / Low
  • 95° Feels Like
  • 0% Chance of Rain

Wind

3 mph

S

UV Index

2

Low

Humidity

85%

Dew 79°F

Sun

6:29 AM · 8:27 PM

Rise · Set

Source: BEAUFORT MCAS (KNBC). Slider scrubs the next 12 hours.

5-Day Outlook

Through Saturday

Local Radar →

Today

91° 82°

Partly Sunny

Overnight: Mostly Cloudy

Detailed forecast

Today

Sunny, with a high near 91. Heat index values as high as 102. South wind 8 to 16 mph, with gusts as high as 26 mph.

Night

Partly cloudy, with a low around 82. South wind 13 to 16 mph, with gusts as high as 28 mph.

Wednesday

91° 82°

Mostly Cloudy

Overnight: Partly Cloudy

Detailed forecast

Wednesday

Partly sunny, with a high near 91. Heat index values as high as 103. South wind 12 to 16 mph, with gusts as high as 26 mph.

Night

Partly cloudy, with a low around 81. South wind 10 to 15 mph, with gusts as high as 26 mph.

Thursday

93° 80°

Chance of Scattered Thunderstorms

Overnight: Chance of Thunderstorms

Detailed forecast

Thursday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Southwest wind 7 to 12 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 79. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

Friday

91° 80°

Chance of Thunderstorms

Overnight: Chance of Thunderstorms

Detailed forecast

Friday

A chance of showers and thunderstorms. Partly sunny, with a high near 91. Chance of precipitation is 50%.

Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 79. Chance of precipitation is 50%.

Saturday

91° 78°

Thunderstorms Likely

Overnight: Thunderstorms Likely

Detailed forecast

Saturday

A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 50%.

Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 78. Chance of precipitation is 50%.

St Helena Island, SC Weather Analysis Tools