Charleston weather live forecast

Today's maximum temperature in Charleston is expected to be 27°C. Select a day from the live weather forecast for Charleston, South Carolina, USA for more weather parameters.

Tuesday
19th May
27

22

11

10
Wednesday
20th May
28

21

10

8
Thursday
21st May
29

22

6

10
Friday
22nd May
27

23

5

8
Saturday
23rd May
30

24

7

10

5-day weather forecast updated at 04:00 on Tuesday 19th May 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 Tuesday 19th May 2026

Expect scattered clouds in Charleston, South Carolina with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 9 kph from the south-east.

27
°C maximum temperature
22
°C minimum temperature
scattered clouds
11
hours of sunshine
10
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
9
kph wind from SE

Charleston weather for Wednesday 20th May 2026

Expect scattered clouds in Charleston, South Carolina 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 mm of rainfall expected and a light breeze of 9 kph from the south-east.

28
°C maximum temperature
21
°C minimum temperature
scattered clouds
10
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
9
kph wind from SE

Charleston weather for Thursday 21st May 2026

Expect isolated thunderstorms in Charleston, South Carolina with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 24% chance of some rain and a light breeze of 10 kph from the south-east.

29
°C maximum temperature
22
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
10
UV index (Very High)
24
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
10
kph wind from SE

Charleston weather for Friday 22nd May 2026

Expect broken clouds in Charleston, South Carolina with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the south-east.

27
°C maximum temperature
23
°C minimum temperature
broken clouds
5
hours of sunshine
8
UV index (Very High)
0
mm of rainfall expected
L
low heat & humidity
10
kph wind from SE

Charleston weather for Saturday 23rd May 2026

Expect broken clouds in Charleston, South Carolina with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 8 kph from the south.