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Sumter, SC Weather
Current conditions, hourly and 10-day forecast from the National Weather Service. Times are local (EDT).
Sumter, SC current weather
53°F
Mostly Clear
H -- / L 41°Feels like 53°
- Wildfire smoke overhead: light
No rain expected in the next 12 hours
Observed at Shaw Air Force Base (7.7 mi away), 10/26/2026, 11:55 PM EDT
Hourly forecast
NWS, updated 7:36 PM
10-day forecast
Tap a day for details
Today10/26Low 41°High
Tonight: Mostly clear, with a low around 41. North wind around 2 mph.
Mostly ClearTue10/27Low 47°High 75°
Tuesday: Sunny, with a high near 75. Northeast wind 2 to 7 mph.
Tuesday Night: Clear, with a low around 47. Northeast wind around 5 mph.
SunnyWed10/28Low 58°High 76°
Wednesday: Mostly sunny, with a high near 76. Northeast wind 6 to 9 mph.
Wednesday Night: Mostly cloudy, with a low around 58. Northeast wind 5 to 8 mph.
Mostly SunnyThu10/29Low 57°High 78°
Thursday: Partly sunny, with a high near 78.
Thursday Night: Mostly clear, with a low around 57.
Partly SunnyFri10/30Low 57°High 81°
Friday: Sunny, with a high near 81.
Friday Night: Partly cloudy, with a low around 57.
SunnySat10/3115% chance of precipitationLow 58°High 78°
Saturday: Partly sunny, with a high near 78.
Saturday Night: A slight chance of rain showers after 1am. Mostly cloudy, with a low around 58.
Partly SunnySun11/134% chance of precipitationLow 58°High 76°
Sunday: A chance of rain showers. Partly sunny, with a high near 76. Chance of precipitation is 30%.
Sunday Night: A chance of rain showers. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
Chance Rain ShowersMon11/225% chance of precipitationLow High 79°
Monday: A chance of rain showers before 7am. Partly sunny, with a high near 79.
Chance Rain Showers then Partly SunnyTue11/3Model blend21% chance of precipitationLow 54°High 78°
Tuesday: Partly cloudy, slight chance of rain. High near 78°. Low that night near 54°. About 0.01 in of precipitation.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.
Wed11/4Model blend30% chance of precipitationLow 50°High 75°
Wednesday: Chance of rain. High near 75°. Low that night near 50°. About 0.91 in of precipitation.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.
Thu11/5Model blend22% chance of precipitationLow 46°High 72°
Thursday: Mostly sunny, slight chance of rain. High near 72°. Low that night near 46°. About 0.35 in of precipitation.
Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.
Forecast for 33.929, -80.357 from the NWS CAE office, updated 10/26/2026, 7:36 PM EDT · Official forecast on weather.gov
Days 9 to 11: NOAA National Blend of Models, station KSMS (Sumter Muni, 5 mi), model run 10/26/2026, 10:00 PM EDT
From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.
Next 6 hours
NWS hourly forecast
- Now44°Mostly Clear0%1 mph
- 2 AM44°Mostly Clear0%1 mph
- 3 AM43°Mostly Clear0%1 mph
- 4 AM43°Mostly Clear0%2 mph
- 5 AM42°Mostly Clear0%2 mph
- 6 AM41°Sunny0%2 mph
Hourly details
Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShowHide
NWS hourly forecast updated 10/26/2026, 7:36 PM EDT
Radar and satellite
National radarNEXRAD (last 50 min) and GOES
Nearby hazards
South Carolina hazardsSevere storm and flash flood outlooks, expected rain, river flooding and wildfires near this area
- Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
- Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
- River gauges within 40 miles at or above flood stage: None reported
- Active wildfires within 50 miles: None reported
UV and air quality forecast
EPA and AirNow
- UV index today (Sumter)
- 5Moderate
Drought
By countySumter County, week of 10/20/2026
100% of the county is in moderate drought or worse.
Frequently asked questions
- What is the weather in Sumter, SC right now?
- The latest observation from Shaw Air Force Base was 53°F and mostly clear, reported at 10/26/2026, 11:55 PM EDT.
- Will it rain in Sumter, SC in the next 24 hours?
- The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
- What is the 10-day forecast for Sumter, SC?
- The first 8 days come from the National Weather Service forecast. Days 9 to 11 (Nov 3 to Nov 5) come from the NOAA National Blend of Models, with highs of 72°F to 78°F and up to a 30% chance of precipitation. Model guidance this far out often changes.
- What time is sunrise and sunset in Sumter, SC today?
- Sunrise is about 7:36 AM EDT and sunset is about 6:33 PM EDT (calculated for the center of the area, within a few minutes).
- What is the normal October weather in Sumter, SC?
- At Sumter, the 1991 to 2020 normal high in October is 74°F and the normal low is 51°F.
Sun and moon
Local time, center of the area
- Sunrise
- 7:36 AM
- Sunset
- 6:33 PM
- Daylight
- 10 hr 57 min
- Moon
- Waning Gibbous 99% lit
- First light (civil dawn)
- 7:11 AM
- Last light (civil dusk)
- 6:59 PM
- Moonrise
- 7:19 PM
- Moonset
- 9:15 AM
Normal October weather
ClimateNormal October high 74°, low 51°, precipitation 3.88 in for the month. 1991 to 2020 normals at Sumter, 0 mi away.
Other places nearby
Data sources
- National Weather Service APINOAA
- National Blend of Models (NBM) text guidanceNOAA National Weather Service
- Convective Outlooks and Storm ReportsNOAA Storm Prediction Center
- Excessive Rainfall Outlook and Quantitative Precipitation ForecastsNOAA Weather Prediction Center
- National Water Prediction ServiceNOAA National Weather Service
- WFIGS Current Wildland Fire IncidentsNational Interagency Fire Center
- Hazard Mapping System Smoke AnalysisNOAA NESDIS Office of Satellite and Product Operations
- UV Index Forecast (Envirofacts)U.S. Environmental Protection Agency and NOAA
- AirNowU.S. Environmental Protection Agency
- NWS HeatRisk (experimental)NOAA National Weather Service
- U.S. Drought MonitorNational Drought Mitigation Center, USDA and NOAA
- BEACON 2.0 Beach Advisory and Closing On-line NotificationU.S. Environmental Protection Agency
- U.S. Climate Normals 1991-2020NOAA National Centers for Environmental Information
- Tides & Currents (CO-OPS API)NOAA Center for Operational Oceanographic Products and Services
- NEXRAD radar tilesIowa Environmental Mesonet, Iowa State University
- GOES-East and GOES-West GeoColor imageryNOAA NESDIS Center for Satellite Applications and Research
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About this data
Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.
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