South Carolina faces a week of chilly, persistent rain from March 11-17, 2026, ahead of St. Patrick’s Day, with daytime highs mostly in the 50s and above-normal precipitation odds of 40-50%.
Regional Forecast
Columbia and the I-20 corridor expect steady rain from multiple Southeast systems, feeling cool and damp under breezy conditions. Charleston’s coastal areas may see slightly warmer readings but gray skies from onshore flow.
Impacts and Precautions
Upstate spots like Greenville and Spartanburg will have 40s mornings but no wintry mix risks. Watch for ponding on I-26/I-95, reduced visibility, and slower drives; low-lying areas could see localized water without major flooding.
