Barnwell, SC Weather Forecast
Local 7-day forecast
Mostly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Barnwell, SC in one place.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 97. Heat index values as high as 103. West wind 3 to 9 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Barnwell, SC is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 9, 2026 9:56 PM EDT.
The active forecast window currently covers Jul 11 to Jul 16, 2026 for Barnwell, SC.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 11 to Jul 16, 2026
- Latest sync
- Jul 9, 2026 9:56 PM EDT
- Forecast office
- CAE
- Source
- NOAA / NWS
Daily Outlook
This Week in Barnwell
Saturday looks like the warmest upcoming period in Barnwell at 97 degrees F.
Monday Night is the coolest period ahead with temperatures near 68 degrees F.
The strongest winds are forecast for Saturday at about 3 to 9 mph W.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 9, 2026 9:56 PM EDT
- Coverage
- 6 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 chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 73. West wind 1 to 8 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers between 8am and 11am, then showers and thunderstorms. Partly sunny, with a high near 92. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms before 8pm, then showers and thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 80%.
A chance of rain showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers and thunderstorms. Mostly cloudy, with a high near 86. Chance of precipitation is 80%.
Showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 80%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90.
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 71.
Sunny, with a high near 93.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Jul 11
|
Mostly Sunny then Chance Showers And Thunderstorms
|
97°F |
3 to 9 mph
W
|
|
Saturday Night
Jul 11
|
Chance Showers And Thunderstorms
|
73°F |
1 to 8 mph
W
|
|
Sunday
Jul 12
|
Showers And Thunderstorms
|
92°F |
1 to 5 mph
W
|
|
Sunday Night
Jul 12
|
Showers And Thunderstorms
|
70°F |
2 mph
N
|
|
Monday
Jul 13
|
Chance Showers And Thunderstorms
|
86°F |
0 to 5 mph
NE
|
|
Monday Night
Jul 13
|
Showers And Thunderstorms
|
68°F |
2 mph
NE
|
|
Tuesday
Jul 14
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
85°F |
5 mph
NE
|
|
Tuesday Night
Jul 14
|
Chance Showers And Thunderstorms
|
69°F |
2 mph
NE
|
|
Wednesday
Jul 15
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
90°F |
2 mph
W
|
|
Wednesday Night
Jul 15
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
71°F |
1 mph
NW
|
|
Thursday
Jul 16
|
Sunny
|
93°F |
0 to 3 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Barnwell.
