Sumter County, SC Weather Forecast
County weather hub
Showers And Thunderstorms Likely
Compare major city weather across Sumter County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Showers and thunderstorms likely. Mostly cloudy, with a high near 88. Chance of precipitation is 60%.
County Weather Overview
This county weather page brings together forecast coverage for Sumter County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 2 of 2 mapped cities in Sumter County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Aug 29 to Sep 1, 2026
- Latest sync
- Aug 26, 2026 5:28 PM EDT
- Forecast office
- CAE
- Source
- NOAA / NWS
Daily Outlook
This Week in Sumter County
Tuesday looks like the warmest upcoming period in Sumter County at 95 degrees F.
Saturday Night is the coolest period ahead with temperatures near 71 degrees F.
The strongest winds are forecast for Saturday at about 0 to 3 mph E.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 26, 2026 5:28 PM EDT
- Coverage
- 4 days
- Time zone
- America/New_York
- Forecast office
- CAE
- Radar station
- KCAE
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
A slight chance of rain showers between 8am and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Mostly sunny, with a high near 92.
Mostly clear, with a low around 73.
Sunny, with a high near 95.
Mostly clear, with a low around 74.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Showers And Thunderstorms Likely
|
88°F |
0 to 3 mph
E
|
|
Saturday Night
Aug 29
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
71°F |
2 mph
E
|
|
Sunday
Aug 30
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
90°F |
2 mph
E
|
|
Sunday Night
Aug 30
|
Chance Showers And Thunderstorms then Partly Cloudy
|
72°F |
2 mph
E
|
|
Monday
Aug 31
|
Mostly Sunny
|
92°F |
2 mph
SW
|
|
Monday Night
Aug 31
|
Mostly Clear
|
73°F |
2 mph
S
|
|
Tuesday
Sep 1
|
Sunny
|
95°F |
2 mph
SW
|
|
Tuesday Night
Sep 1
|
Mostly Clear
|
74°F |
2 mph
S
|
Major City Forecasts
Live forecast snapshots for major cities across Sumter County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Sumter County.
Largest mapped city population in this region: 39,439.
