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

Areas of Showers and Thunderstorms to Start the Work Week

Areas of rain and thunderstorms are forecast Monday across the central and eastern states. Some mixed rain and snow is possible in the high Sierra Mountains. Heavy to excessive rain may bring flooding in the central Appalachians. Read More >

Current conditions at

Columbia, Columbia Metropolitan Airport (KCAE)

Lat: 33.94°NLon: 81.12°WElev: 233ft.

A Few Clouds

77°F

25°C

Humidity 85%
Wind Speed Calm
Barometer 29.96 in (1014.1 mb)
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 21 Sep 12:56 am EDT
Extended Forecast for

Swansea SC

  • Overnight

    Overnight: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 93. Heat index values as high as 100. Calm wind becoming east around 5 mph in the afternoon.

    High: 93 °F

    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 70. Light and variable wind.

    Low: 70 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 70. Light northeast wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 70 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 83. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers before 8am. Partly sunny, with a high near 78. Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Overnight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 70. Calm wind.
Monday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 93. Heat index values as high as 100. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 70. Light and variable wind.
Tuesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 70. Light northeast wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 83. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Thursday
A chance of showers before 8am. Partly sunny, with a high near 78. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 57.
Sunday
Mostly sunny, with a high near 81.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Swansea SC
 33.73°N 81.11°W (Elev. 299 ft)
Last Update:
2:46 pm EDT Sep 20, 2026
Forecast Valid:
1am EDT Sep 21, 2026-6pm EDT Sep 27, 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