What is today's weather forecast for Barnwell, SC?

Today's forecast for Barnwell shows a high of 77 degrees and a low of 56 degrees Fahrenheit. Areas of fog before 10am.

What is the 7-day weather forecast for Barnwell, SC?

The 7-day forecast for Barnwell shows highs from 72 to 81 degrees and lows from 46 to 61 degrees Fahrenheit. Expect precipitation on 1 day with chances of 20% or higher.

Will it rain in Barnwell, SC this week?

Yes, rain is possible in Barnwell this week. Precipitation chances: Tuesday (30% chance).

How accurate is the Barnwell weather forecast?

WeatherForYou provides highly accurate Barnwell forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Barnwell, SC Weather Forecast and Current Conditions

WEATHER ALERTS - Dense Fog Advisory

Current Conditions From Nearby Local Station

Switch to Metric Units

57°F
Feels Like 57°F

Humidity 100% Dew Point 57°F Wind Calm Barometer 30.17 in.766.3 mm

Solar Rad 98 w/m² Visibility 0.25 mi.

Report from a NOAA weather station 1.5 miles WNW of central Barnwell
at 9:35 AM Thu, Nov 20, 2025

Point Forecast at a Glance

ThuNov 20

FriNov 21

SatNov 22

SunNov 23

MonNov 24

TueNov 25

WedNov 26

7-Day Temperature Trend

Week Ahead Summary

High temperatures remain relatively stable through the week, ranging from 72°F to 81°F. Mostly dry conditions with only one day showing rain chances.

Climate Context

This week's forecast shows temperatures running 10°F above the historical average for November. Normal highs for this period are around 67°F with lows around 42°F.

This Date in Weather History

1900 - An unusual tornado outbreak in the Lower Mississippi Valley resulted in 73 deaths and extensive damage across Arkansas, Mississippi and Tennessee.

Barnwell, SC 7 Day Weather Forecast Details

Thursday Nov 20

Day: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 77. Calm wind.

Night: Increasing clouds, with a low around 56. Calm wind.

Friday Nov 21

Day: Patchy fog before 8am. Otherwise, partly sunny, with a high near 81. Calm wind becoming southwest around 6 mph in the afternoon.

Night: Mostly cloudy, with a low around 61. Light southwest wind.

Saturday Nov 22

Day: Mostly sunny, with a high near 80. Southwest wind 5 to 9 mph.

Night: Mostly clear, with a low around 55.

Sunday Nov 23

Day: Mostly sunny, with a high near 73.

Night: Mostly clear, with a low around 46.

Monday Nov 24

Day: Mostly sunny, with a high near 72.

Night: Mostly cloudy, with a low around 51.

Tuesday Nov 25

Day: Partly sunny, with a high near 77.

Night: A chance of rain. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.

Wednesday Nov 26

Day: Partly sunny, with a high near 76.

About Barnwell, SC

Barnwell is a city in and county seat of Barnwell County, South Carolina, United States, located along U.S. Route 278. The population was 4,750 at the 2010 census.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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