Columbia, South Carolina – A stretch of chilly, soaking rain is shaping up across South Carolina ahead of St. Patrick’s Day, with daytime temperatures largely holding in the 50s between March 11 and March 17.
According to the National Weather Service Climate Prediction Center, South Carolina falls within a 40-50% probability zone for above-normal precipitation during the 8-14 day period. Temperatures are projected to trend near to slightly above seasonal averages statewide, ensuring most precipitation falls as rain rather than any wintry mix.
In Columbia and along the Interstate 20 corridor, multiple systems moving across the Southeast could bring periods of steady rainfall. Daytime highs in the low to mid-50s will create a cool, damp feel, especially during breezy afternoons. In Charleston and along the coastal plain, readings may climb slightly higher, but persistent cloud cover and onshore flow could keep conditions gray and raw.
Upstate communities including Greenville and Spartanburg may see cooler mornings in the 40s, but temperatures should remain warm enough to prevent any snow concerns. Instead, the primary impacts will be reduced visibility and ponding on roadways during heavier rainfall.
Drivers along Interstate 26 and Interstate 95 should prepare for slower commutes during steadier rain bands. While flooding is not currently expected to be widespread, localized standing water is possible in low-lying and poor drainage areas. Additional updates are expected as the March 11-17 window approaches and system timing becomes clearer.
