Local Forecast

Sumter, SC Weather Forecast & Alerts

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

No Active Alerts

Hour-by-Hour  Current Observation

Sunday 10:15 AM EDTSunday 10:15 AM

°F °C
Regional Observations →
86°F

Clear

  • 95° / 75° High / Low
  • 97° Feels Like
  • 0% Chance of Rain

Wind

7 mph

G 14 mph

SW

UV Index

9

Very High

Humidity

75%

Dew 77°F

Sun

6:12 AM · 8:36 PM

Rise · Set

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

5-Day Outlook

Through Thursday

Local Radar →

Today

95° 75°

Chance of Thunderstorms

Overnight: Chance of Thunderstorms

Detailed forecast

Today

A chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 94. Heat index values as high as 103. West wind 6 to 10 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 2am. Mostly cloudy, with a low around 74. Heat index values as high as 102. West wind 0 to 8 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.

Monday

95° 75°

Partly Sunny

Overnight: Partly Cloudy

Detailed forecast

Monday

Sunny, with a high near 94. Heat index values as high as 105. North wind 1 to 6 mph. New rainfall amounts between a tenth and quarter of an inch possible.

Night

Mostly clear, with a low around 74. Heat index values as high as 102. East wind 0 to 5 mph.

Tuesday

93° 73°

Partly Sunny

Overnight: Clear

Detailed forecast

Tuesday

Sunny, with a high near 93. Northeast wind 2 to 7 mph.

Night

Clear, with a low around 72.

Wednesday

96° 73°

Mostly Sunny

Overnight: Clear

Detailed forecast

Wednesday

Sunny, with a high near 96.

Night

Clear, with a low around 73.

Thursday

98° 75°

Mostly Sunny

Overnight: Mostly Sunny

Detailed forecast

Thursday

Sunny, with a high near 97.

Night

Mostly clear, with a low around 75.

Sumter, SC Weather Analysis Tools