Charleston weather live forecast

Today's maximum temperature in Charleston is expected to be 32°C. Select a day from the live weather forecast for Charleston, South Carolina, USA for more weather parameters.

Friday
18th Sep
32

23

9

8
Saturday
19th Sep
30

24

6

8
Sunday
20th Sep
29

24

5

7
Monday
21st Sep
28

24

1

7
Tuesday
22nd Sep
28

24

2

7

5-day weather forecast updated at 04:00 on Friday 18th September 2026 GMT

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The 5-day weather forecast for South Carolina (Charleston) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Charleston weather forecast by day

Below are the detailed weather forecasts for Charleston for the next 5 days.

Charleston weather for Friday 18th September 2026

Expect scattered clouds in Charleston, South Carolina with a maximum temperature of 32°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the south.

32
°C maximum temperature
23
°C minimum temperature
scattered clouds
9
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
5
kph wind from S

Charleston weather for Saturday 19th September 2026

Expect isolated thunderstorms in Charleston, South Carolina with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 44% chance of some rain and little or no wind of 5 kph from the south-east.

30
°C maximum temperature
24
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
8
UV index (Very High)
44
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
5
kph wind from SE

Charleston weather for Sunday 20th September 2026

Expect isolated thunderstorms in Charleston, South Carolina with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 54% chance of some rain and little or no wind of 5 kph from the south-east.

29
°C maximum temperature
24
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
7
UV index (High)
54
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
5
kph wind from SE

Charleston weather for Monday 21st September 2026

Expect isolated thunderstorms in Charleston, South Carolina with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 1 hour of bright sunshine. There are 2-5 mm of rainfall expected with 62% chance of some rain and little or no wind of 6 kph from the east.

28
°C maximum temperature
24
°C minimum temperature
isolated thunderstorms
1
hour of sunshine
7
UV index (High)
62
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
6
kph wind from E

Charleston weather for Tuesday 22nd September 2026

Expect isolated thunderstorms in Charleston, South Carolina with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 2 hours of bright sunshine. There are 10-20 mm of rainfall expected with 76% chance of some rain and a light breeze of 7 kph from the east.