Weather WorldSt. Charles, SC 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
St. Charles, SC Weather Forecast
St. Charles, SC Weather Forecast Date: 908 PM EST Tue Nov 03 2026
The area/counties/county of: Sumter, including the city of Sumter.or toggle through each period.
Tonight... Mostly clear. Patchy fog after midnight. Lows in the upper 50s. East winds 5 to 10 mph.
Wednesday... Mostly sunny in the morning, then becoming mostly cloudy. Patchy fog in the morning. Highs in the lower 80s. East winds 5 to 10 mph, becoming southeast with gusts up to 20 mph in the afternoon.
Wednesday Night... Mostly cloudy. Lows in the mid 60s. Southeast winds 5 to 10 mph.
Thursday... Partly sunny. A chance of showers in the afternoon. Highs in the lower 80s. South winds around 5 mph. Chance of rain 40%.
Thursday Night... Mostly cloudy. A chance of showers after midnight. Lows in the mid 60s. South winds around 5 mph. Chance of rain 40%.
Friday... Showers likely with a chance of thunderstorms in the morning, then partly sunny in the afternoon. Highs around 80. Chance of rain 70%.
Friday Night... Partly cloudy in the evening, then clearing. Lows in the mid 50s.
Saturday... Mostly sunny. Highs in the mid 70s.
Saturday Night... Partly cloudy. Lows in the upper 40s.
Sunday... Mostly sunny. Highs in the lower 70s.
Sunday Night... Partly cloudy in the evening, then clearing. Lows in the mid 40s.
Monday... Sunny. Highs around 70.
Monday Night... Mostly clear. Lows around 40.
POP = Probability of Precipitation
St. Charles Radar Loop
Use the map search tool if you want to place a location marker on the radar map...