10-Day Weather Forecast - Saint Helena Island, SC

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  • 66|42°F
    Thunderstorms
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    Today

    66°F

    A chance of showers and thunderstorms late this morning then showers and thunderstorms this afternoon. Some thunderstorms may be severe this afternoon. Highs in the mid 70s except around 70 near the coast. Southwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain near 100 percent.

    Tonight

    42°F

    Mostly cloudy with a chance of rain showers in the evening then mostly clear after midnight. Much cooler with lows in the mid 30s. Less humid. Northwest winds 15 to 20 mph with gusts up to 35 mph. Chance of rain 40 percent.

    Hourly details
  • Day

    51°F

    Mostly sunny. Cooler with highs in the mid 50s. Northwest winds 10 to 15 mph with gusts up to 25 mph.

    Night

    45°F

    Partly cloudy in the evening then clearing. Lows in the mid 30s except in the upper 30s near the coast. Northwest winds 5 to 10 mph.

    Hourly details
  • Day

    53°F

    Mostly sunny. Highs in the upper 50s. Northeast winds 5 to 10 mph.

    Night

    49°F

    Partly cloudy. Lows in the lower 40s.

    Hourly details
  • Day

    61°F

    Sunny. Highs in the mid 60s.

    Night

    56°F

    Mostly clear. Lows in the upper 40s.

    Hourly details
  • Day

    67°F

    Sunny. Highs in the lower 70s.

    Night

    59°F

    Mostly clear. Lows in the lower 50s.

    Hourly details
  • Weekend Weather

  • Day

    73°F

    Mostly sunny. Highs in the upper 70s.

    Night

    64°F

    Mostly clear. Lows in the upper 50s.

    Hourly details
  • Day

    76°F

    Sunny. Highs around 80.

    Night

    65°F

    Partly cloudy. Low temperature around 65F. Dew point will be around 61F with an average humidity of 79%. Winds will be 6 mph from the S.

  • Day

    68°F

    Sunny. High temperature around 68F. Dew point will be around 56F with an average humidity of 69%. Winds will be 4 mph from the E.

    Night

    59°F

    Cloudy. Low temperature around 59F. Dew point will be around 53F with an average humidity of 71%. Winds will be 7 mph from the NE.

  • Day

    58°F

    Cloudy. High temperature around 58F. Dew point will be around 50F with an average humidity of 78%. Winds will be 11 mph from the NE.

    Night

    57°F

    Cloudy. Low temperature around 57F. Dew point will be around 55F with an average humidity of 85%. Winds will be 8 mph from the NE.

  • Day

    64°F

    Cloudy. High temperature around 64F. Dew point will be around 57F with an average humidity of 85%. Winds will be 8 mph from the E.

    Night

    63°F

    Partly cloudy. Low temperature around 63F. Dew point will be around 62F with an average humidity of 93%. Winds will be 5 mph from the E.