St Simons Island weather live forecast

Today's maximum temperature in St Simons Island is expected to be 30°C. Select a day from the live weather forecast for St Simons Island, Georgia, USA for more weather parameters.

Thursday
7th May
30

22

2

5
Friday
8th May
25

21

1

8
Saturday
9th May
28

21

1

4
Sunday
10th May
28

22

2

8
Monday
11th May
28

22

7

9

5-day weather forecast updated at 04:03 on Thursday 7th 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 Thursday 7th May 2026

Expect broken clouds in St Simons Island, Georgia (USA) with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south-west.

30
°C maximum temperature
22
°C minimum temperature
broken clouds
2
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
M
moderate heat & humidity
18
kph wind from SW

St Simons Island weather for Friday 8th May 2026

Expect mostly cloudy with light rain in St Simons Island, Georgia (USA) with a maximum temperature of 25°C, maximum UV of 8 (Very High) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 13% chance of some rain and a gentle breeze of 15 kph from the east.

25
°C maximum temperature
21
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
8
UV index (Very High)
13
% chance of some rain
<2
mm of rainfall expected
25
°C wind chill
15
kph wind from E

St Simons Island weather for Saturday 9th May 2026

Expect isolated thunderstorms in St Simons Island, Georgia (USA) with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 4 (Moderate) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 71% chance of some rain and a light breeze of 11 kph from the south.

28
°C maximum temperature
21
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
4
UV index (Moderate)
71
% chance of some rain
<10
mm of rainfall expected
L
low heat & humidity
11
kph wind from S

St Simons Island weather for Sunday 10th May 2026

Expect isolated thunderstorms in St Simons Island, Georgia (USA) with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 72% chance of some rain and a gentle breeze of 13 kph from the south-west.

28
°C maximum temperature
22
°C minimum temperature
isolated thunderstorms
2
hours of sunshine
8
UV index (Very High)
72
% chance of some rain
<5
mm of rainfall expected
L
low heat & humidity
13
kph wind from SW

St Simons Island weather for Monday 11th May 2026

Expect isolated thunderstorms 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 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 55% chance of some rain and a gentle breeze of 16 kph from the west.