Sumter County, SC Weather Forecast

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Sumter County, SC Weather Forecast

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Sumter County SC weather  - Mostly Clear - 79°F
Mostly Clear
79°F
Updated 3:15 pm
Feels Like 77°F
Humidity 38%
Wind WSW 5 mph
Barometer  29.83 in
Dew Point 51°F
Sumter County SC weather  - Mostly Clear - 26°C
Mostly Clear
26°C
Updated 3:15 pm
Feels Like 25°C
Humidity 38%
Wind WSW 8 km/h
Barometer  101 kPa
Dew Point 11°C

Sumter County Weather Forecast

THIS AFTERNOON TONIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT
Sumter County, SC Weather - This Afternoon Sunny Sumter County, SC Weather - Tonight Clear Sumter County, SC Weather - Monday Sunny Sumter County, SC Weather - Monday Night Clear Sumter County, SC Weather - Tuesday Sunny Sumter County, SC Weather - Tuesday Night Clear Sumter County, SC Weather - Wednesday Sunny Sumter County, SC Weather - Wednesday Night Mostly Clear Sumter County, SC Weather - Thursday Sunny Sumter County, SC Weather - Thursday Night Mostly Clear Sumter County, SC Weather - Friday Mostly Sunny Sumter County, SC Weather - Friday Night Partly Cloudy
Sunny Clear Sunny Clear Sunny Clear Sunny Mostly Clear Sunny Mostly Clear Mostly Sunny Partly Cloudy
Hi: 81°FHi: 27°C
Lo: 55°FLo: 13°C Hi: 81°FHi: 27°C
Lo: 59°FLo: 15°C Hi: 89°FHi: 32°C
Lo: 61°FLo: 16°C Hi: 89°FHi: 32°C
Lo: 65°FLo: 18°C Hi: 89°FHi: 32°C
Lo: 69°FLo: 21°C Hi: 90°FHi: 32°C
Lo: 69°FLo: 21°C
POP = Probability of Precipitation.
Weather Outlook Updated: 108 PM EDT Sun Sep 27 2026 Sumter County, SC Weather - WeatherWorld.com

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Sumter County Forecast Discussion

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Issued: 114 PM EDT Sun Sep 27 2026

Key Messages

  • 1. Dry conditions persist into next week with temperatures initially near normal warming back above normal by the mid week.

Discussion

... KEY MESSAGE 1: Dry conditions persist into next week with temperatures initially near normal warming back above normal by the mid week.

Little has changed in the outlook through at least the mid week. The upper low and associated Nor`easter is expected to continue to meandering across New England tonight with low level northwesterly flow keeping dry ...