Sumter County, SC Weather Forecast
County weather hub
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
Compare major city weather across Sumter County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms between 9am and 11am, then a slight chance of showers and thunderstorms between 11am and 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, then a chance of showers and thunderstorms between 2pm and 5pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 85. Northeast wind 5 to 8 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter 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
- Jul 14 to Jul 19, 2026
- Latest sync
- Jul 13, 2026 11:20 AM EDT
- Forecast office
- CAE
- Source
- NOAA / NWS
Daily Outlook
This Week in Sumter County
Friday looks like the warmest upcoming period in Sumter County at 95 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 70 degrees F.
The strongest winds are forecast for Tuesday at about 5 to 8 mph NE.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 13, 2026 11:20 AM 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
Showers and thunderstorms likely before 8pm, then a slight chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 70. Northeast wind 0 to 5 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Northeast wind around 2 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 72. Chance of precipitation is 20%.
Sunny, with a high near 94.
Mostly clear, with a low around 74.
Sunny, with a high near 95.
Mostly clear, with a low around 75.
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 95.
A slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 75.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
85°F |
5 to 8 mph
NE
|
|
Tuesday Night
Jul 14
|
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
|
70°F |
0 to 5 mph
NE
|
|
Wednesday
Jul 15
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
90°F |
2 mph
NE
|
|
Wednesday Night
Jul 15
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
72°F |
1 mph
SW
|
|
Thursday
Jul 16
|
Sunny
|
94°F |
2 mph
W
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
74°F |
2 mph
SW
|
|
Friday
Jul 17
|
Sunny
|
95°F |
0 to 3 mph
E
|
|
Friday Night
Jul 17
|
Mostly Clear
|
75°F |
2 mph
S
|
|
Saturday
Jul 18
|
Sunny then Slight Chance Showers And Thunderstorms
|
95°F |
1 to 6 mph
S
|
|
Saturday Night
Jul 18
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
75°F |
5 mph
S
|
|
Sunday
Jul 19
|
Mostly Sunny then Chance Showers And Thunderstorms
|
94°F |
5 to 8 mph
SW
|
|
Sunday Night
Jul 19
|
Chance Showers And Thunderstorms
|
75°F |
6 mph
SW
|
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.
