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 before 8am, then patchy fog and showers and thunderstorms likely between 8am and 11am, then a slight chance of showers and thunderstorms between 11am and noon, then a chance of showers and thunderstorms between noon and 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 80. West wind 0 to 3 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
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
- May 30 to Jun 4, 2026
- Latest sync
- May 29, 2026 3:41 PM EDT
- Forecast office
- CAE
- Source
- NOAA / NWS
Daily Outlook
This Week in Sumter County
Monday looks like the warmest upcoming period in Sumter County at 83 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Sunday at about 6 to 13 mph E.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- May 29, 2026 3:41 PM EDT
- Coverage
- 6 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
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Northeast wind 0 to 12 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 8am. Partly sunny, with a high near 78. East wind 6 to 13 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 61. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
A slight chance of rain showers. Mostly sunny, with a high near 83.
A slight chance of rain showers before 2am. Partly cloudy, with a low around 60.
Sunny, with a high near 83.
Mostly clear, with a low around 59.
Sunny, with a high near 82.
Partly cloudy, with a low around 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Showers And Thunderstorms Likely
|
80°F |
0 to 3 mph
W
|
|
Saturday Night
May 30
|
Chance Showers And Thunderstorms
|
61°F |
0 to 12 mph
NE
|
|
Sunday
May 31
|
Chance Rain Showers then Partly Sunny
|
78°F |
6 to 13 mph
E
|
|
Sunday Night
May 31
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
61°F |
0 to 5 mph
E
|
|
Monday
Jun 1
|
Chance Showers And Thunderstorms
|
83°F |
0 to 5 mph
SW
|
|
Monday Night
Jun 1
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
63°F |
0 to 3 mph
SW
|
|
Tuesday
Jun 2
|
Slight Chance Rain Showers
|
83°F |
3 to 8 mph
N
|
|
Tuesday Night
Jun 2
|
Slight Chance Rain Showers
|
60°F |
0 to 5 mph
N
|
|
Wednesday
Jun 3
|
Sunny
|
83°F |
0 to 5 mph
N
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
59°F |
0 to 3 mph
SE
|
|
Thursday
Jun 4
|
Sunny
|
82°F |
1 to 6 mph
SE
|
|
Thursday Night
Jun 4
|
Partly Cloudy
|
60°F |
0 to 5 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.
