Charleston weather live forecast

Today's maximum temperature in Charleston is expected to be 34°C. Select a day from the live weather forecast for Charleston, South Carolina, USA for more weather parameters.

Friday
14th Aug
34

26

8

9
Saturday
15th Aug
33

27

8

9
Sunday
16th Aug
33

27

5

7
Monday
17th Aug
36

28

10

8
Tuesday
18th Aug
36

28

9

9

5-day weather forecast updated at 04:00 on Friday 14th August 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 14th August 2026

Expect isolated thunderstorms in Charleston, South Carolina with a maximum temperature of 34°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 56% chance of some rain and a light breeze of 9 kph from the south-west.

34
°C maximum temperature
26
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
9
UV index (Very High)
56
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
9
kph wind from SW

Charleston weather for Saturday 15th August 2026

Expect isolated thunderstorms in Charleston, South Carolina with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 9 (Very High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 41% chance of some rain and a light breeze of 8 kph from the south-west.

33
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
9
UV index (Very High)
41
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
8
kph wind from SW

Charleston weather for Sunday 16th August 2026

Expect isolated thunderstorms in Charleston, South Carolina with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 7 (High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 56% chance of some rain and little or no wind of 5 kph from the south.

33
°C maximum temperature
27
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
7
UV index (High)
56
% chance of some rain
<2
mm of rainfall expected
H
high heat & humidity
5
kph wind from S

Charleston weather for Monday 17th August 2026

Expect isolated thunderstorms in Charleston, South Carolina with a maximum temperature of 36°C, very high 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 34% chance of some rain and a light breeze of 8 kph from the south-west.

36
°C maximum temperature
28
°C minimum temperature
isolated thunderstorms
10
hours of sunshine
8
UV index (Very High)
34
% chance of some rain
<2
mm of rainfall expected
VH
very high heat & humidity
8
kph wind from SW

Charleston weather for Tuesday 18th August 2026

Expect isolated thunderstorms in Charleston, South Carolina with a maximum temperature of 36°C, very high levels of heat & humidity, maximum UV of 9 (Very High) and 9 hours of bright sunshine. There are 2-5 mm of rainfall expected with 51% chance of some rain and a light breeze of 7 kph from the south.