Marion County, SC Weather Forecast
County weather hub
Sunny
Compare major city weather across Marion County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 82.
County Weather Overview
This county weather page brings together forecast coverage for Marion 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 Marion County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 22 to Apr 25, 2026
- Latest sync
- Apr 18, 2026 11:06 PM EDT
- Forecast office
- ILM
- Source
- NOAA / NWS
Daily Outlook
This Week in Marion County
Friday looks like the warmest upcoming period in Marion County at 88 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Saturday at about 3 to 9 mph W.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Apr 18, 2026 11:06 PM EDT
- Coverage
- 4 days
- Time zone
- America/New_York
- Forecast office
- ILM
- Radar station
- KLTX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 54.
Sunny, with a high near 86.
Mostly clear, with a low around 57.
Sunny, with a high near 88.
Mostly clear, with a low around 59.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 22
|
Sunny
|
82°F |
1 to 7 mph
SW
|
|
Wednesday Night
Apr 22
|
Mostly Clear
|
54°F |
2 to 6 mph
SW
|
|
Thursday
Apr 23
|
Sunny
|
86°F |
5 mph
W
|
|
Thursday Night
Apr 23
|
Mostly Clear
|
57°F |
5 mph
SW
|
|
Friday
Apr 24
|
Sunny
|
88°F |
2 to 7 mph
SW
|
|
Friday Night
Apr 24
|
Mostly Clear
|
59°F |
6 mph
SW
|
|
Saturday
Apr 25
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
88°F |
3 to 9 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Marion County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Marion County.
Largest mapped city population in this region: 6,200.