St Simons Island weather live forecast

Tomorrow's maximum temperature in St Simons Island is expected to be 30°C.

5-day weather forecast updated at 04:03 on Wednesday 16th July 2025 GMT

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The 5-day weather forecast for Georgia (USA) (St Simons Island) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

St Simons Island weather forecast by day

Below are the detailed weather forecasts for St Simons Island for the next 5 days.

St Simons Island weather for Tuesday 15th July 2025

Expect clear skies in St Simons Island, Georgia (USA) with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 14 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the east.

  • 30°C maximum temperature30
    °C maximum temperature
  • 24°C minimum temperature24
    °C minimum temperature
  • Clear skies
    clear skies
  • 14 hours of bright sunshine14
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 26 kph from the East26
    kph wind from E

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St Simons Island weather for Wednesday 16th July 2025

Expect isolated thunderstorms in St Simons Island, Georgia (USA) with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 10 hours of bright sunshine. There are 0-2 mm of rainfall expected with 27% chance of some rain and a moderate breeze of 25 kph from the south-east.

  • 30°C maximum temperature30
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 27% chance of some rain27
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 25 kph from the South-East25
    kph wind from SE

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St Simons Island weather for Thursday 17th July 2025

Expect broken clouds in St Simons Island, Georgia (USA) with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the south.

  • 31°C maximum temperature31
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 22 kph from the South22
    kph wind from S

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St Simons Island weather for Friday 18th July 2025

Expect isolated thunderstorms in St Simons Island, Georgia (USA) with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 45% chance of some rain and a gentle breeze of 16 kph from the south.

  • 33°C maximum temperature33
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 45% chance of some rain45
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Gentle breeze of 16 kph from the South16
    kph wind from S

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St Simons Island weather for Saturday 19th July 2025

Expect scattered clouds in St Simons Island, Georgia (USA) with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the south.

  • 34°C maximum temperature34
    °C maximum temperature
  • 26°C minimum temperature26
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 11 hours of bright sunshine11
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Gentle breeze of 15 kph from the South15
    kph wind from S

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Metric (°C / mm)  |  Imperial (°F / inches)

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