St Simons Island weather live forecast

Today's maximum temperature in St Simons Island is expected to be 29°C. Select a day from the live weather forecast for St Simons Island, Georgia, USA for more weather parameters.

Saturday
21st Mar
29

11

12

7
Sunday
22nd Mar
27

16

12

8
Monday
23rd Mar
28

18

10

8
Tuesday
24th Mar
21

15

3

4
Wednesday
25th Mar
19

14

6

7

5-day weather forecast updated at 04:03 on Sunday 22nd 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 Saturday 21st March 2026

Expect clear skies in St Simons Island, Georgia (USA) with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 7 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the west.

29
°C maximum temperature
11
°C minimum temperature
clear skies
12
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
15
kph wind from W

St Simons Island weather for Sunday 22nd March 2026

Expect clear skies 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 12 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 17 kph from the south-west.

27
°C maximum temperature
16
°C minimum temperature
clear skies
12
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
17
kph wind from SW

St Simons Island weather for Monday 23rd March 2026

Expect isolated thunderstorms in St Simons Island, Georgia (USA) with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 10 hours of bright sunshine. There are 0-2 mm of rainfall expected with 25% chance of some rain and a gentle breeze of 18 kph from the west.

28
°C maximum temperature
18
°C minimum temperature
isolated thunderstorms
10
hours of sunshine
8
UV index (Very High)
25
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
18
kph wind from W

St Simons Island weather for Tuesday 24th March 2026

Expect mostly cloudy with light rain in St Simons Island, Georgia (USA) with a maximum temperature of 21°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 2-5 mm of rainfall expected with 94% chance of some rain and a fresh breeze of 30 kph from the north-east.

21
°C maximum temperature
15
°C minimum temperature
mostly cloudy with light rain
3
hours of sunshine
4
UV index (Moderate)
94
% chance of some rain
<5
mm of rainfall expected
21
°C wind chill
30
kph wind from NE

St Simons Island weather for Wednesday 25th March 2026

Expect sunshine and showers in St Simons Island, Georgia (USA) with a maximum temperature of 19°C, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 30% chance of some rain and a gentle breeze of 18 kph from the north-east.