Barnwell, SC Weather Forecast
Local 7-day forecast
Mostly Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Barnwell, SC in one place.
Mostly clear, with a low around 71. Wind around 0 mph.
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: Aug 25, 2026 3:25 AM EDT.
The active forecast window currently covers Aug 25 to Aug 31, 2026 for Barnwell, SC.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 25 to Aug 31, 2026
- Latest sync
- Aug 25, 2026 3:25 AM EDT
- Forecast office
- CAE
- Source
- NOAA / NWS
Daily Outlook
This Week in Barnwell
Tuesday looks like the warmest upcoming period in Barnwell at 95 degrees F.
Overnight 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 3:25 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 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.
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 chance of rain showers between 8am and 11am, then showers and thunderstorms likely. Partly sunny, with a high near 93. Southeast wind 0 to 3 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. Southeast 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 93. 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. Partly sunny, with a high near 89. Chance of precipitation is 80%.
Showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 80%.
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. Partly 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 |
|---|---|---|---|
|
Overnight
Aug 25
|
Mostly Clear
|
71°F |
0 mph
|
|
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
|
Showers And Thunderstorms Likely
|
93°F |
0 to 3 mph
SE
|
|
Wednesday Night
Aug 26
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
72°F |
2 mph
SE
|
|
Thursday
Aug 27
|
Showers And Thunderstorms Likely
|
93°F |
0 to 3 mph
SW
|
|
Thursday Night
Aug 27
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
71°F |
1 mph
W
|
|
Friday
Aug 28
|
Showers And Thunderstorms
|
89°F |
2 mph
W
|
|
Friday Night
Aug 28
|
Showers And Thunderstorms then Chance Showers And Thunderstorms
|
71°F |
1 mph
W
|
|
Saturday
Aug 29
|
Showers And Thunderstorms Likely
|
89°F |
1 mph
N
|
|
Saturday Night
Aug 29
|
Showers And Thunderstorms Likely
|
71°F |
1 mph
NE
|
|
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
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Barnwell.
