St Simons Island weather live forecast

Today's maximum temperature in St Simons Island is expected to be 27°C. Select a day from the live weather forecast for St Simons Island, Georgia, USA for more weather parameters.

Wednesday
11th Mar
27

20

9

8
Thursday
12th Mar
25

15

3

6
Friday
13th Mar
19

12

7

7
Saturday
14th Mar
20

15

10

7
Sunday
15th Mar
23

18

6

8

5-day weather forecast updated at 04:03 on Wednesday 11th March 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 11th March 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 8 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 18 kph from the south.

27
°C maximum temperature
20
°C minimum temperature
scattered clouds
9
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
18
kph wind from S

St Simons Island weather for Thursday 12th March 2026

Expect mostly cloudy with rain in St Simons Island, Georgia (USA) with a maximum temperature of 25°C, maximum UV of 6 (High) and 3 hours of bright sunshine. There are 5-10 mm of rainfall expected with 98% chance of some rain and a moderate breeze of 25 kph from the south-west.

25
°C maximum temperature
15
°C minimum temperature
mostly cloudy with rain
3
hours of sunshine
6
UV index (High)
98
% chance of some rain
<10
mm of rainfall expected
25
°C wind chill
25
kph wind from SW

St Simons Island weather for Friday 13th March 2026

Expect broken clouds in St Simons Island, Georgia (USA) with a maximum temperature of 19°C, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the north-east.

19
°C maximum temperature
12
°C minimum temperature
broken clouds
7
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
19
°C wind chill
24
kph wind from NE

St Simons Island weather for Saturday 14th March 2026

Expect scattered clouds in St Simons Island, Georgia (USA) with a maximum temperature of 20°C, maximum UV of 7 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north-east.

20
°C maximum temperature
15
°C minimum temperature
scattered clouds
10
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
20
°C wind chill
15
kph wind from NE

St Simons Island weather for Sunday 15th March 2026

Expect isolated thunderstorms in St Simons Island, Georgia (USA) with a maximum temperature of 23°C, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 79% chance of some rain and a gentle breeze of 14 kph from the south-east.