St Simons Island weather live forecast

Today's maximum temperature in St Simons Island is expected to be 37°C. Select a day from the live weather forecast for St Simons Island, Georgia, USA for more weather parameters.

Wednesday
29th Jul
37

29

4

8
Thursday
30th Jul
35

28

3

8
Friday
31st Jul
34

27

7

8
Saturday
1st Aug
33

27

7

8
Sunday
2nd Aug
31

27

7

3

5-day weather forecast updated at 04:03 on Wednesday 29th 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 Wednesday 29th July 2026

Expect isolated thunderstorms in St Simons Island, Georgia (USA) with a maximum temperature of 37°C, very high levels of heat & humidity, maximum UV of 8 (Very High) and 4 hours of bright sunshine. There are 10-20 mm of rainfall expected with 42% chance of some rain and a gentle breeze of 18 kph from the south-west.

37
°C maximum temperature
29
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
8
UV index (Very High)
42
% chance of some rain
<20
mm of rainfall expected
VH
very high heat & humidity
18
kph wind from SW

St Simons Island weather for Thursday 30th 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 8 (Very High) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 29% chance of some rain and a gentle breeze of 18 kph from the west.

35
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
3
hours of sunshine
8
UV index (Very High)
29
% 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 isolated thunderstorms in St Simons Island, Georgia (USA) with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 43% chance of some rain and a gentle breeze of 16 kph from the south-east.

34
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
8
UV index (Very High)
43
% chance of some rain
<5
mm of rainfall expected
H
high heat & humidity
16
kph wind from SE

St Simons Island weather for Saturday 1st August 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 7 hours of bright sunshine. There are 2-5 mm of rainfall expected with 66% chance of some rain and a gentle breeze of 19 kph from the south.

33
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
8
UV index (Very High)
66
% chance of some rain
<5
mm of rainfall expected
H
high heat & humidity
19
kph wind from S

St Simons Island weather for Sunday 2nd August 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 3 (Moderate) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 84% chance of some rain and a gentle breeze of 19 kph from the south.