Charleston weather live forecast

Today's maximum temperature in Charleston is expected to be 30°C. Select a day from the live weather forecast for Charleston, South Carolina, USA for more weather parameters.

Monday
21st Sep
30

25

6

7
Tuesday
22nd Sep
28

25

5

6
Wednesday
23rd Sep
28

23

4

6
Thursday
24th Sep
25

20

5

4
Friday
25th Sep
24

17

11

8

5-day weather forecast updated at 04:02 on Monday 21st 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 Monday 21st September 2026

Expect broken clouds in Charleston, South Carolina with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the east.

30
°C maximum temperature
25
°C minimum temperature
broken clouds
6
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
7
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, moderate levels of heat & humidity, maximum UV of 6 (High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 64% chance of some rain and a light breeze of 7 kph from the north-east.

28
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
6
UV index (High)
64
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
7
kph wind from NE

Charleston weather for Wednesday 23rd September 2026

Expect isolated thunderstorms in Charleston, South Carolina with a maximum temperature of 28°C, moderate levels of heat & humidity, maximum UV of 6 (High) and 4 hours of bright sunshine. There are 2-5 mm of rainfall expected with 59% chance of some rain and a light breeze of 12 kph from the north-east.

28
°C maximum temperature
23
°C minimum temperature
isolated thunderstorms
4
hours of sunshine
6
UV index (High)
59
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
12
kph wind from NE

Charleston weather for Thursday 24th September 2026

Expect broken clouds in Charleston, South Carolina with a maximum temperature of 25°C, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the north.

25
°C maximum temperature
20
°C minimum temperature
broken clouds
5
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
13
kph wind from N

Charleston weather for Friday 25th September 2026

Expect clear skies in Charleston, South Carolina with a maximum temperature of 24°C, maximum UV of 8 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north.