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

Hazardous Weather Conditions

Current conditions at

Marion County Airport (KMAO)

Lat: 34.18°NLon: 79.34°WElev: 92ft.

Fair

93°F

34°C

Humidity 28%
Wind Speed Calm
Barometer 29.91 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 19 Aug 6:35 pm EDT
Extended Forecast for

4 Miles ESE Mullins SC

Heat Advisory August 20, 11:00am until August 20, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 7pm. Patchy fog after 3am. Otherwise, mostly clear, with a low around 75. Calm wind. Chance of precipitation is 20%.

    Low: 75 °F

    Slight Chance
    T-storms then
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 95. Heat index values as high as 107. Light and variable wind.

    High: 95 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 75. South wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Mostly Clear

  • Friday

    Friday: A chance of showers and thunderstorms after 2pm. Sunny, then becoming mostly cloudy during the afternoon, with a high near 94. Heat index values as high as 110. Light and variable wind. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 72. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 72 °F

    Showers
    Likely

  • Saturday

    Saturday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 90. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Slight Chance
    T-storms then
    T-storms

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 71. Chance of precipitation is 80%.

    Low: 71 °F

    T-storms then
    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 7pm. Patchy fog after 3am. Otherwise, mostly clear, with a low around 75. Calm wind. Chance of precipitation is 20%.
Thursday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 95. Heat index values as high as 107. Light and variable wind.
Thursday Night
Mostly clear, with a low around 75. South wind around 5 mph becoming calm in the evening.
Friday
A chance of showers and thunderstorms after 2pm. Sunny, then becoming mostly cloudy during the afternoon, with a high near 94. Heat index values as high as 110. Light and variable wind. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a slight chance of showers after 2am. Mostly cloudy, with a low around 72. Light and variable wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 90. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Low around 71. Chance of precipitation is 80%.
Sunday
Mostly sunny, with a high near 90.
Sunday Night
Partly cloudy, with a low around 71.
Monday
Mostly sunny, with a high near 91.
Monday Night
Partly cloudy, with a low around 70.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 40%.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Mullins SC
 34.17°N 79.19°W (Elev. 39 ft)
Last Update:
6:04 pm EDT Aug 19, 2026
Forecast Valid:
6pm EDT Aug 19, 2026-6pm EDT Aug 26, 2026
 
Forecast Discussion
 
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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