National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Marion County Airport (KMAO)

Lat: 34.18°NLon: 79.34°WElev: 92ft.

Fair

72°F

22°C

Humidity 94%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 28 Aug 2:15 am EDT
Extended Forecast for

Marion SC

  • Overnight

    Overnight: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    T-storms

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 2pm. Patchy fog between 7am and 8am. Otherwise, mostly cloudy, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    T-storms
    Likely and
    Patchy Fog

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    T-storms
    Likely

  • Saturday

    Saturday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 86 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 30%.

    High: 90 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 73.

    Low: 73 °F

    Mostly Clear

Detailed Forecast

Overnight
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Calm wind. Chance of precipitation is 20%.
Friday
Showers and thunderstorms likely, mainly after 2pm. Patchy fog between 7am and 8am. Otherwise, mostly cloudy, with a high near 86. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 86. Calm wind. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 73.
Tuesday
Sunny, with a high near 93.
Tuesday Night
Mostly clear, with a low around 73.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Mostly clear, with a low around 74.
Thursday
Sunny, with a high near 94.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Marion SC
 34.17°N 79.41°W (Elev. 52 ft)
Last Update:
7:40 pm EDT Aug 27, 2026
Forecast Valid:
2am EDT Aug 28, 2026-6pm EDT Sep 3, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation