Saint Helena Island, SC Precipitation Forecast

Rain. Low 72F. Winds E at 10 to 20 mph. Chance of rain 100%. Rainfall possibly over one inch. Locally heavy rainfall possible.

Tomorrow

Sat 10/10

High 81°f

97% Precip. / 0.78 in

Thunderstorms likely in the morning. Then a chance of scattered thunderstorms in the afternoon. High 81F. Winds SE at 10 to 15 mph. Chance of rain 100%. Localized flooding is possible.

Tomorrow night

Sat 10/10

Low 76°f

83% Precip. / 0.26 in

Scattered showers and thunderstorms. Low 76F. Winds S at 10 to 15 mph. Chance of rain 80%.

Hourly Forecast

Now

73°

10PM

87%

74°

11PM

95%

74°

12AM

97%

74°

1AM

95%

75°

2AM

100%

74°

3AM

100%

74°

4AM

92%

75°

5AM

77%

75°

6AM

75%

75°

7AM

83%

76°

7:22AM

Sunrise

8AM

64%

76°

9AM

65%

78°

10AM

67%

79°

11AM

62%

80°

12PM

67%

81°

1PM

43%

80°

2PM

45%

81°

3PM

81°

4PM

81°

5PM

80°

6PM

80°

6:55PM

Sunset

7PM

79°

8PM

78°

9PM

40%

78°

Precipitation

100%

Thunderstorms likely to continue

Additional Conditions

Pressure 30.06 in
Visibility 9 miles
Clouds Cloudy
Dew Point70°F
Humidity 90%
Rainfall 0.06 in
Snow Depth 0 in

KARW Station History

Almanac for October 9, 2026

Forecast Average Record
Temperature
High 77°F 81°F 90°F 1941
Low 70°F 63°F 45°F 1988
Rain/Snow Depth
Precipitation 0.91 in - in -
Snow 0 in - in -

Almanac for October 10, 2026

Forecast Average Record
Temperature
High 81°F 80°F 92°F
Low 74°F 63°F 43°F

Astronomy

Sun Rise Set
Actual Time 7:21 AM 6:56 PM
Civil Twilight 6:57 AM 7:21 PM
Nautical Twilight 6:28 AM 7:49PM
Astronomical Twilight 6:00 AM 8:18 PM

Length of Visible Light 12h 24m
Length of Day 11h 34m
Tomorrow will be 1 minute 56 seconds shorter

Moon 6:18 AM 6:15 PM
Waning Crescent1% of the Moon is Illuminated

Oct 10

New Moon

Oct 18

Waxing Half First Qtr

Oct 26

Full Moon

Nov 1

Waning Half Last Qtr

Nearby Weather Stations

Loading nearby stations…