St Simons Island weather live forecast

Today's maximum temperature in St Simons Island is expected to be 25°C. Select a day from the live weather forecast for St Simons Island, Georgia, USA for more weather parameters.

Friday
15th May
25

18

11

8
Saturday
16th May
27

20

8

9
Sunday
17th May
28

22

8

9
Monday
18th May
28

23

8

9
Tuesday
19th May
27

23

8

9

5-day weather forecast updated at 04:02 on Friday 15th May 2026 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 Friday 15th May 2026

Expect scattered clouds in St Simons Island, Georgia (USA) with a maximum temperature of 25°C, maximum UV of 8 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the north-east.

25
°C maximum temperature
18
°C minimum temperature
scattered clouds
11
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
25
°C wind chill
20
kph wind from NE

St Simons Island weather for Saturday 16th May 2026

Expect scattered clouds in St Simons Island, Georgia (USA) with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the south-east.

27
°C maximum temperature
20
°C minimum temperature
scattered clouds
8
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
16
kph wind from SE

St Simons Island weather for Sunday 17th May 2026

Expect scattered clouds in St Simons Island, Georgia (USA) with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south-east.