Barnwell County, SC Weather Forecast
County weather hub
Mostly Sunny then Slight Chance Showers And Thunderstorms
Compare major city weather across Barnwell County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 95. Northeast wind around 2 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Barnwell County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 3 of 3 mapped cities in Barnwell County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Aug 25 to Aug 31, 2026
- Latest sync
- Aug 25, 2026 1:57 AM EDT
- Forecast office
- CAE
- Source
- NOAA / NWS
Daily Outlook
This Week in Barnwell County
Tuesday looks like the warmest upcoming period in Barnwell County at 95 degrees F.
Thursday Night is the coolest period ahead with temperatures near 71 degrees F.
The strongest winds are forecast for Tuesday Night at about 0 to 3 mph SE.
Precipitation is mentioned in 13 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 25, 2026 1:57 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- CAE
- 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 between 9pm and 2am. Mostly clear, with a low around 72. Southeast wind 0 to 3 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers between 8am and 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 93. Southeast wind around 2 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Showers and thunderstorms likely before 8pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 72. East wind around 2 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 92. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Showers and thunderstorms likely before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 70%.
A slight chance of rain showers between 8am and 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 89. Chance of precipitation is 70%.
Showers and thunderstorms likely before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 70%.
A slight chance of rain showers before 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 89. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
A slight chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 90. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Aug 25
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
95°F |
2 mph
NE
|
|
Tuesday Night
Aug 25
|
Slight Chance Showers And Thunderstorms
|
72°F |
0 to 3 mph
SE
|
|
Wednesday
Aug 26
|
Slight Chance Showers And Thunderstorms
|
93°F |
2 mph
SE
|
|
Wednesday Night
Aug 26
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
72°F |
2 mph
E
|
|
Thursday
Aug 27
|
Showers And Thunderstorms Likely
|
92°F |
0 to 3 mph
SW
|
|
Thursday Night
Aug 27
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
71°F |
1 mph
SW
|
|
Friday
Aug 28
|
Showers And Thunderstorms Likely
|
89°F |
2 mph
W
|
|
Friday Night
Aug 28
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
71°F |
1 mph
W
|
|
Saturday
Aug 29
|
Showers And Thunderstorms Likely
|
89°F |
1 mph
NE
|
|
Saturday Night
Aug 29
|
Showers And Thunderstorms Likely
|
71°F |
0 mph
|
|
Sunday
Aug 30
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
90°F |
2 mph
SE
|
|
Sunday Night
Aug 30
|
Chance Showers And Thunderstorms then Partly Cloudy
|
72°F |
1 mph
E
|
|
Monday
Aug 31
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
94°F |
1 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Barnwell County.
Coverage
Forecast coverage currently spans 3 of 3 mapped cities in Barnwell County.
Largest mapped city population in this region: 5,076.
