SAINT HELENA ISLAND, SC 29920 Weather Forecast & Current Conditions

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BEAUFORT MCAS, SC
Current Weather

1:56 AM EDT APR 3, 2026
Broken Clouds
66°F
Feels Like: 66°F
Dewpoint: 63°F
Rel. Hum.: 90%
Visibility: 10 miles
Wind: NNE at 3 mph
Pressure: 30.27 inches
Last 72 hours

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SAINT HELENA ISLAND, SC 29920
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
OVERNIGHT
Mostly clear late this evening, then becoming partly cloudy. Lows in the mid 60s. Southeast winds around 5 mph.
FRIDAY
Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Southeast winds 5 to 10 mph. Chance of rain 20 percent.
FRIDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s. Southeast winds 5 to 10 mph.
SATURDAY
Mostly sunny. Highs in the lower 80s, except in the upper 70s near the coast. Southeast winds 5 to 10 mph.
SATURDAY NIGHT
Mostly clear. Lows in the mid 60s. South winds 5 to 10 mph.
SUNDAY
Mostly sunny with a chance of showers with a slight chance of thunderstorms. Highs in the lower 80s. Chance of rain 50 percent.
SUNDAY NIGHT
Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Lows around 60. Chance of rain 50 percent.
MONDAY
Mostly cloudy with a 20 percent chance of showers. Highs in the lower 70s.
MONDAY NIGHT
Mostly cloudy. Lows in the mid 50s.
TUESDAY
Mostly cloudy with a 20 percent chance of showers. Highs around 70.
TUESDAY NIGHT
Partly cloudy. Lows in the lower 50s.
WEDNESDAY
Mostly sunny. Highs in the upper 60s.
WEDNESDAY NIGHT
Partly cloudy with a 20 percent chance of showers. Lows in the lower 50s.

Visible Weather Satellite
SAINT HELENA ISLAND, SC 29920
Infrared Weather Satellite
SAINT HELENA ISLAND, SC 29920
NEXRAD Weather Radar
SAINT HELENA ISLAND, SC 29920

BEAUFORT MCAS, SC 3 hourly weather forecast

weather forecast created  7:00 PM EST  4/ 2/2026
Friday
3 APR 2026
SAINT HELENA ISLAND, SC 29920 weather forecast Day 1, 0 hours 1 AM 65° 65° Partly Cloudy 3%

0% Thunder
( 5% severe)
SE   5 93% 63°
Low 64° SAINT HELENA ISLAND, SC 29920 weather forecast Day 1, 3 hours 4 AM 65° 65° Partly Cloudy ESE   3 90% 62°
High 82° SAINT HELENA ISLAND, SC 29920 weather forecast Day 1, 6 hours 7 AM 65° 65° Partly Cloudy 25%
RAIN
***
0% Thunder
( 15% severe)
E   3 93% 63°

Partly Cloudy

Chance of Rain

SAINT HELENA ISLAND, SC 29920 weather forecast Day 1, 9 hours 10 AM 76° 78° Partly Cloudy SSE   8 69% 65°
SAINT HELENA ISLAND, SC 29920 weather forecast Day 1, 12 hours 1 PM 77° 79° Partly Cloudy 17%
RAIN
<.01 in
0% Thunder
( 14% severe)
SSE   10 67% 65°
SAINT HELENA ISLAND, SC 29920 weather forecast Day 1, 15 hours 4 PM 77° 79° Partly Cloudy SSE   10 67% 65°
SAINT HELENA ISLAND, SC 29920 weather forecast Day 1, 18 hours 7 PM 71° 71° Partly Cloudy 4%

0% Thunder
( 2% severe)
SE   6 81% 65°
SAINT HELENA ISLAND, SC 29920 weather forecast Day 1, 21 hours 10 PM 67° 67° Partly Cloudy SE   3 90% 64°
Saturday
4 APR 2026
SAINT HELENA ISLAND, SC 29920 weather forecast Day 2, 0 hours 1 AM 65° 65° Partly Cloudy 4%

0% Thunder
( 1% severe)
SE   3 93% 63°
Low 63° SAINT HELENA ISLAND, SC 29920 weather forecast Day 2, 3 hours 4 AM 64° 66° Mostly Cloudy SE   2 97% 63°
High 83° SAINT HELENA ISLAND, SC 29920 weather forecast Day 2, 6 hours 7 AM 65° 65° Mostly Cloudy 5%

0% Thunder
( 5% severe)
SE   2 97% 64°

Decreasing Clouds



SAINT HELENA ISLAND, SC 29920 weather forecast Day 2, 9 hours 10 AM 76° 78° Partly Cloudy SSE   7 66% 64°
SAINT HELENA ISLAND, SC 29920 weather forecast Day 2, 12 hours 1 PM 78° 80° Partly Cloudy 7%

0% Thunder
( 5% severe)
SSE   10 60% 63°
SAINT HELENA ISLAND, SC 29920 weather forecast Day 2, 15 hours 4 PM 78° 80° Clear SSE   10 62% 64°
SAINT HELENA ISLAND, SC 29920 weather forecast Day 2, 18 hours 7 PM 71° 71° Clear 1%

0% Thunder
( 1% severe)
SSE   7 81% 65°
SAINT HELENA ISLAND, SC 29920 weather forecast Day 2, 21 hours 10 PM 68° 68° Partly Cloudy S   7 90% 65°

BEAUFORT MCAS, SC extended weather forecast

Sunday
5 APR 2026
Monday
6 APR 2026
Tuesday
7 APR 2026
Wednesday
8 APR 2026
Thursday
9 APR 2026
Low 66° Low 59° Low 52° Low 49° Low 53°
High 81° High 74° High 76° High 68° High 72°
SAINT HELENA ISLAND, SC 29920 weather forecast Day 3 SAINT HELENA ISLAND, SC 29920 weather forecast Day 4 SAINT HELENA ISLAND, SC 29920 weather forecast Day 5 SAINT HELENA ISLAND, SC 29920 weather forecast Day 6 SAINT HELENA ISLAND, SC 29920 weather forecast Day 7
Mostly Cloudy
51% Rain
Overcast
41% Rain
Mostly Cloudy
33% Rain
Mostly Cloudy
28% Rain
Overcast
58% Rain
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