Columbia, South Carolina – Scorching heat and dangerous thunderstorms will sweep through Columbia on Tuesday, putting travel, power, and outdoor plans at risk. Afternoon highs will approach 99°F with heat index values soaring as high as 105, followed by a sharp uptick in storms threatening the city after 2 p.m.
According to the National Weather Service, the combination of extreme heat and sudden downpours will create hazardous conditions across Columbia and surrounding counties. Roads such as I-26 and I-20 may see traffic slowdowns during heavy rainfall and lightning. Residents are urged to avoid unnecessary travel after lunchtime, stay hydrated, and monitor for fast-changing weather alerts. Power outages and minor flooding are possible, especially where storms track over the same area.
Thunderstorms are expected to continue through Tuesday night, keeping overnight temperatures muggy in the mid-70s. By Wednesday, another round of storms is likely, particularly after 2 p.m., with a 70% chance of rain and slightly lower highs near 94°F. Wednesday night brings more thunderstorm risk before a brief break early Thursday.
Looking ahead, Thursday and Friday afternoons both feature a 70% or higher chance of thunderstorms, with highs settling in the low-90s. Outdoor activities should be planned for mornings or rescheduled indoors. This summer weather pattern will persist into the weekend, with scattered showers and storms possible Saturday and Sunday.
Five-Day Forecast for Columbia, SC:
- Tuesday: Showers and thunderstorms after 2 p.m., high near 99°F, heat index up to 105.
- Wednesday: More storms likely after 2 p.m., high near 94°F.
- Thursday: Afternoon thunderstorms likely, high around 92°F.
- Friday: Showers and storms likely after 2 p.m., high near 91°F.
- Saturday: Chance of showers and storms, high near 94°F.
