St Simons Island weather live forecast

Today's maximum temperature in St Simons Island is expected to be 54°F. Select a day from the live weather forecast for St Simons Island, Georgia, USA for more weather parameters.

Sunday
18th Jan
54

34

2

1
Monday
19th Jan
52

32

10

4
Tuesday
20th Jan
52

36

9

4
Wednesday
21st Jan
57

39

3

4
Thursday
22nd Jan
59

50

9

4

5-day weather forecast updated at 04:05 on Saturday 17th January 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 January 2026

Expect mostly cloudy with light rain in St Simons Island, Georgia (USA) with a maximum temperature of 54°F, maximum UV of 1 (Low) and 2 hours of bright sunshine. There are 0-2 mm of rainfall expected with 99% chance of some rain and a moderate breeze of 12 mph from the north-west.

54
°F maximum temperature
34
°F minimum temperature
mostly cloudy with light rain
2
hours of sunshine
1
UV index (Low)
99
% chance of some rain
<2
mm of rainfall expected
54
°F wind chill
12
mph wind from NW

St Simons Island weather for Monday 19th January 2026

Expect clear skies in St Simons Island, Georgia (USA) with a maximum temperature of 52°F, maximum UV of 4 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 8 mph from the west.

52
°F maximum temperature
32
°F minimum temperature
clear skies
10
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
52
°F wind chill
8
mph wind from W

St Simons Island weather for Tuesday 20th January 2026

Expect scattered clouds in St Simons Island, Georgia (USA) with a maximum temperature of 52°F, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 9 mph from the north-west.

52
°F maximum temperature
36
°F minimum temperature
scattered clouds
9
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
9
mph wind from NW

St Simons Island weather for Wednesday 21st January 2026

Expect broken clouds in St Simons Island, Georgia (USA) with a maximum temperature of 57°F, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the north-east.

57
°F maximum temperature
39
°F minimum temperature
broken clouds
3
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
7
mph wind from NE

St Simons Island weather for Thursday 22nd January 2026

Expect scattered clouds in St Simons Island, Georgia (USA) with a maximum temperature of 59°F, maximum UV of 4 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the north-east.