St Simons Island weather live forecast

Today's maximum temperature in St Simons Island is expected to be 20°C. Select a day from the live weather forecast for St Simons Island, Georgia, USA for more weather parameters.

Sunday
18th Oct
20

14

7

4
Monday
19th Oct
21

13

9

5
Tuesday
20th Oct
24

12

11

6
Wednesday
21st Oct
24

15

11

6
Thursday
22nd Oct
24

14

11

6

5-day weather forecast updated at 04:02 on Sunday 18th October 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 Sunday 18th October 2026

Expect scattered clouds in St Simons Island, Georgia (USA) with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a fresh breeze of 29 kph from the north-east.

20
°C maximum temperature
14
°C minimum temperature
scattered clouds
7
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
20
°C wind chill
29
kph wind from NE

St Simons Island weather for Monday 19th October 2026

Expect scattered clouds in St Simons Island, Georgia (USA) with a maximum temperature of 21°C, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the north.

21
°C maximum temperature
13
°C minimum temperature
scattered clouds
9
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
21
°C wind chill
23
kph wind from N

St Simons Island weather for Tuesday 20th October 2026

Expect clear skies in St Simons Island, Georgia (USA) with a maximum temperature of 24°C, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the north.