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.

Tuesday
16th Jun
30

23

3

8
Wednesday
17th Jun
28

24

3

6
Thursday
18th Jun
31

25

6

10
Friday
19th Jun
31

26

4

11
Saturday
20th Jun
30

25

6

10

5-day weather forecast updated at 04:02 on Tuesday 16th June 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 Tuesday 16th June 2026

Expect isolated thunderstorms in St Simons Island, Georgia (USA) with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 79% chance of some rain and a gentle breeze of 16 kph from the west.

30
°C maximum temperature
23
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
8
UV index (Very High)
79
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
16
kph wind from W

St Simons Island weather for Wednesday 17th June 2026

Expect isolated thunderstorms in St Simons Island, Georgia (USA) with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 74% chance of some rain and a moderate breeze of 20 kph from the south-west.

28
°C maximum temperature
24
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
6
UV index (High)
74
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
20
kph wind from SW

St Simons Island weather for Thursday 18th June 2026

Expect isolated thunderstorms 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 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 64% chance of some rain and a gentle breeze of 17 kph from the south-west.

31
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
10
UV index (Very High)
64
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from SW

St Simons Island weather for Friday 19th June 2026

Expect isolated thunderstorms in St Simons Island, Georgia (USA) with a maximum temperature of 31°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 4 hours of bright sunshine. There are 5-10 mm of rainfall expected with 80% chance of some rain and a gentle breeze of 18 kph from the south-west.

31
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
11
UV index (Extreme)
80
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
18
kph wind from SW

St Simons Island weather for Saturday 20th June 2026

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 6 hours of bright sunshine. There are 10-20 mm of rainfall expected with 76% chance of some rain and a gentle breeze of 16 kph from the west.