Local Forecast

Sumter, SC Weather Forecast & Alerts

Current conditions, 5-day forecast, active weather alerts for Sumter, SC

No Active Alerts

Hour-by-Hour  Current Observation

Monday 4:55 AM EDTMonday 4:55 AM

°F °C
Regional Observations →
78°F

Clear

  • 95° / 77° High / Low
  • 82° Feels Like
  • 0% Chance of Rain

Wind

6 mph

S

UV Index

0

None

Humidity

94%

Dew 77°F

Sun

6:24 AM · 8:30 PM

Rise · Set

Source: SUMTER (KSMS). Slider scrubs the next 12 hours.

5-Day Outlook

Through Friday

Local Radar →

Monday

95° 77°

Chance of Thunderstorms

Overnight: Chance of Scattered Thunderstorms

Detailed forecast

Monday

A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95. Heat index values as high as 105. Southwest wind 3 to 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Night

A chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 76. Heat index values as high as 102. South wind 3 to 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Tuesday

95° 77°

Isolated T-storm

Overnight: Partly Cloudy

Detailed forecast

Tuesday

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Heat index values as high as 105. Southwest wind 3 to 12 mph. Chance of precipitation is 20%.

Night

A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 77. Southwest wind around 10 mph. Chance of precipitation is 20%.

Wednesday

95° 75°

Isolated T-storm

Overnight: Isolated T-storm

Detailed forecast

Wednesday

A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Chance of precipitation is 20%.

Night

A slight chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 75. Chance of precipitation is 60%.

Thursday

91° 73°

Thunderstorms Likely

Overnight: Thunderstorms Likely

Detailed forecast

Thursday

A chance of rain showers before 2pm, then showers and thunderstorms likely. Partly sunny, with a high near 91. Chance of precipitation is 60%.

Night

Showers and thunderstorms likely before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

Friday

89° 73°

Chance of Thunderstorms

Overnight: Chance of Thunderstorms

Detailed forecast

Friday

A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 50%.

Night

A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 50%.

Sumter, SC Weather Analysis Tools