Saint Helena Island, SC Precipitation Forecast

Rain likely. Low 71F. Winds ENE at 10 to 20 mph. Chance of rain 100%. 1 to 2 inches of rain expected. Locally heavy rainfall possible.

Tomorrow

Sat 10/10

High 81°f

94% Precip. / 0.79 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 90%. Localized flooding is possible.

Tomorrow night

Sat 10/10

Low 76°f

64% Precip. / 0.58 in

Variable clouds with scattered thunderstorms. Low 76F. Winds S at 10 to 15 mph. Chance of rain 60%.

Hourly Forecast

Now

72°

8PM

49%

72°

9PM

80%

73°

10PM

99%

73°

11PM

93%

74°

12AM

89%

74°

1AM

100%

75°

2AM

97%

74°

3AM

91%

75°

4AM

91%

75°

5AM

79%

75°

6AM

90%

75°

7AM

94%

75°

7:22AM

Sunrise

8AM

65%

76°

9AM

91%

77°

10AM

84%

78°

11AM

64%

79°

12PM

56%

79°

1PM

43%

80°

2PM

38%

81°

3PM

32%

81°

4PM

32%

81°

5PM

81°

6PM

80°

6:55PM

Sunset

7PM

79°

Precipitation

100%

Thunderstorms likely to continue

Additional Conditions

Pressure 30.04 in
Visibility 9 miles
Clouds Cloudy
Dew Point69°F
Humidity 90%
Rainfall 0.07 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 71°F 63°F 45°F 1988
Rain/Snow Depth
Precipitation 1.25 in - in -
Snow 0 in - in -

Almanac for October 10, 2026

Forecast Average Record
Temperature
High 81°F 80°F 92°F
Low 73°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 57 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

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