Charleston County, SC Weather Forecast
County weather hub
Partly Cloudy
Compare major city weather across Charleston County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Partly cloudy, with a low around 81. Southwest wind around 10 mph.
County Weather Overview
This county weather page brings together forecast coverage for Charleston County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 11 of 11 mapped cities in Charleston County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 11 to Jul 17, 2026
- Latest sync
- Jul 11, 2026 5:24 AM EDT
- Forecast office
- CHS
- Source
- NOAA / NWS
Daily Outlook
This Week in Charleston County
Saturday looks like the warmest upcoming period in Charleston County at 95 degrees F.
Monday Night is the coolest period ahead with temperatures near 76 degrees F.
The strongest winds are forecast for Saturday at about 8 to 15 mph SW.
Precipitation is mentioned in 13 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 11, 2026 5:24 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- CHS
- Radar station
- KCLX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms after 5pm. Sunny, with a high near 95. Heat index values as high as 110. Southwest wind 8 to 15 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 11pm. Partly cloudy, with a low around 80. Heat index values as high as 106. Southwest wind 7 to 14 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 95. Heat index values as high as 109. West wind 7 to 12 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 8pm, then showers and thunderstorms. Mostly cloudy, with a low around 77. Southwest wind 3 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
A chance of rain showers before 8am, then showers and thunderstorms likely. Partly sunny, with a high near 89. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms likely before 8pm, then showers and thunderstorms likely between 8pm and 2am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Chance of precipitation is 70%.
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 77. Chance of precipitation is 50%.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 78. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 2am. Mostly clear, with a low around 80. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 93. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 11
|
Partly Cloudy
|
81°F |
10 mph
SW
|
|
Saturday
Jul 11
|
Sunny then Slight Chance Showers And Thunderstorms
|
95°F |
8 to 15 mph
SW
|
|
Saturday Night
Jul 11
|
Chance Showers And Thunderstorms then Partly Cloudy
|
80°F |
7 to 14 mph
SW
|
|
Sunday
Jul 12
|
Mostly Sunny then Chance Showers And Thunderstorms
|
95°F |
7 to 12 mph
W
|
|
Sunday Night
Jul 12
|
Chance Showers And Thunderstorms then Showers And Thunderstorms
|
77°F |
3 to 10 mph
SW
|
|
Monday
Jul 13
|
Showers And Thunderstorms Likely
|
89°F |
3 to 9 mph
SW
|
|
Monday Night
Jul 13
|
Showers And Thunderstorms Likely
|
76°F |
3 to 9 mph
SW
|
|
Tuesday
Jul 14
|
Chance Showers And Thunderstorms
|
89°F |
3 to 10 mph
SW
|
|
Tuesday Night
Jul 14
|
Chance Showers And Thunderstorms
|
77°F |
3 to 9 mph
SW
|
|
Wednesday
Jul 15
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
90°F |
3 to 12 mph
W
|
|
Wednesday Night
Jul 15
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
78°F |
5 to 10 mph
SW
|
|
Thursday
Jul 16
|
Sunny then Slight Chance Showers And Thunderstorms
|
92°F |
3 to 12 mph
SW
|
|
Thursday Night
Jul 16
|
Slight Chance Showers And Thunderstorms
|
80°F |
5 to 12 mph
SW
|
|
Friday
Jul 17
|
Sunny then Slight Chance Showers And Thunderstorms
|
93°F |
5 to 13 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Charleston County.
Coverage
Forecast coverage currently spans 11 of 11 mapped cities in Charleston County.
Largest mapped city population in this region: 139,714.
