St Simons Island weather live forecast

Today's maximum temperature in St Simons Island is expected to be 36°C. Select a day from the live weather forecast for St Simons Island, Georgia, USA for more weather parameters.

Tuesday
28th Jul
36

28

9

9
Wednesday
29th Jul
35

28

8

9
Thursday
30th Jul
33

27

4

8
Friday
31st Jul
34

26

8

9
Saturday
1st Aug
32

27

9

9

5-day weather forecast updated at 04:03 on Tuesday 28th July 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 28th July 2026

Expect isolated thunderstorms in St Simons Island, Georgia (USA) with a maximum temperature of 36°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 9 hours of bright sunshine. There are 2-5 mm of rainfall expected with 8% chance of some rain and a gentle breeze of 18 kph from the south.

36
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
9
hours of sunshine
9
UV index (Very High)
8
% chance of some rain
<5
mm of rainfall expected
H
high heat & humidity
18
kph wind from S

St Simons Island weather for Wednesday 29th July 2026

Expect isolated thunderstorms in St Simons Island, Georgia (USA) with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 10-20 mm of rainfall expected with 70% chance of some rain and a gentle breeze of 19 kph from the west.

35
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
9
UV index (Very High)
70
% chance of some rain
<20
mm of rainfall expected
H
high heat & humidity
19
kph wind from W

St Simons Island weather for Thursday 30th July 2026

Expect isolated thunderstorms in St Simons Island, Georgia (USA) with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 4 hours of bright sunshine. There are 0-2 mm of rainfall expected with 40% chance of some rain and a gentle breeze of 18 kph from the west.

33
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
8
UV index (Very High)
40
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
18
kph wind from W

St Simons Island weather for Friday 31st July 2026

Expect broken clouds in St Simons Island, Georgia (USA) with a maximum temperature of 34°C, high 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 17 kph from the south.

34
°C maximum temperature
26
°C minimum temperature
broken clouds
8
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
H
high heat & humidity
17
kph wind from S

St Simons Island weather for Saturday 1st August 2026

Expect isolated thunderstorms in St Simons Island, Georgia (USA) with a maximum temperature of 32°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 9 hours of bright sunshine. There are 2-5 mm of rainfall expected with 63% chance of some rain and a gentle breeze of 15 kph from the south-west.