Charleston County, SC Weather Forecast
County weather hub
Chance Rain Showers then Slight Chance Showers And Thunderstorms
Compare major city weather across Charleston County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of rain showers before 2pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 30%.
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
- May 26 to May 29, 2026
- Latest sync
- May 22, 2026 8:28 PM EDT
- Forecast office
- CHS
- Source
- NOAA / NWS
Daily Outlook
This Week in Charleston County
Tuesday looks like the warmest upcoming period in Charleston County at 86 degrees F.
Thursday Night is the coolest period ahead with temperatures near 71 degrees F.
The strongest winds are forecast for Tuesday at about 7 to 13 mph S.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- May 22, 2026 8:28 PM EDT
- Coverage
- 4 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. Partly cloudy, with a low around 74. Chance of precipitation is 20%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.
A chance of rain showers before 8am, then showers and thunderstorms likely. Mostly cloudy, with a high near 86. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
A chance of rain showers before 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 83. Chance of precipitation is 70%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
May 26
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
86°F |
7 to 13 mph
S
|
|
Tuesday Night
May 26
|
Slight Chance Showers And Thunderstorms
|
74°F |
6 to 12 mph
S
|
|
Wednesday
May 27
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
86°F |
6 to 12 mph
SW
|
|
Wednesday Night
May 27
|
Chance Showers And Thunderstorms
|
73°F |
5 to 10 mph
SW
|
|
Thursday
May 28
|
Showers And Thunderstorms Likely
|
86°F |
3 to 9 mph
SW
|
|
Thursday Night
May 28
|
Showers And Thunderstorms Likely
|
71°F |
3 to 8 mph
SW
|
|
Friday
May 29
|
Showers And Thunderstorms Likely
|
83°F |
5 to 13 mph
NE
|
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.
