Weather
Columbia, SC Weather: 9-Degree Cool-Down Arrives by Labor Day Sept. 7 on I-26
A significant heat relief arrives in Columbia, SC, for Labor Day. Temperatures drop to 88 degrees after a weekend of extreme heat. Plan for weather updates.
By Cameron Hayes · 2026-09-04T07:45:27.301Z
Columbia, SC — South Carolina residents can finally anticipate a significant break from the relentless triple digit heat index values that have defined the past few days. While the region remains gripped by extreme summer heat through Saturday, a shift in the pattern promises a notable cool down by the time Labor Day arrives on Monday, September 7.
Meteorologists are currently tracking a transition that will bring much needed relief to the Midlands. The intense heat, which is pushing heat index values as high as 106 degrees on Saturday, will begin to wane as a more active weather pattern moves into the region. By the time Monday morning breaks, residents will notice a distinct change in the atmosphere. High temperatures, which are expected to soar near 99 degrees on Saturday, are slated to retreat to a more manageable 88 degrees by Monday afternoon.
This shift comes as a welcome reprieve for those planning outdoor festivities for the holiday. Travelers utilizing major arteries such as I 26 and I 77 should prepare for fluctuating conditions throughout the weekend. While the early part of the holiday weekend will be characterized by sunny, stifling conditions, the arrival of moisture on Sunday night into Monday will introduce a higher probability of showers and thunderstorms. Drivers should remain vigilant, as sudden downpours could create slick surfaces and temporary visibility issues on local highways during the peak of holiday travel.
The current models indicate that the persistent, oppressive humidity will begin to recede as a northeasterly wind shift takes hold on Sunday and Monday. This change is vital for those hoping to enjoy outdoor activities without the threat of extreme heat related health impacts. However, the atmosphere remains unsettled. A 60 percent chance of showers and storms is anticipated late Sunday night, which may leave lingering dampness as the holiday begins on Monday morning. Please plan for extra time if you are heading out on the roads early Monday, as wet patches from overnight storms could persist into the morning commute.
For those attending parades or backyard barbecues, keep an eye on the afternoon sky. Although the overall trend is toward cooling, a slight chance of localized thunderstorms remains in the forecast for Monday afternoon. Always monitor the latest updates as these localized systems develop, particularly if you are near exposed areas or traveling on regional routes. Taking these precautions ensures that your holiday plans remain smooth and stress free despite the shifting atmospheric dynamics.
For the latest hyperlocal forecast, radar, and active alerts for Columbia, visit the National Weather Service Columbia page .
Traveling this weekend? Tell us what conditions you're seeing in your neighborhood.
Saturday: Sunny, 99°/74° Sunday: Mostly Sunny, 93°/71° Labor Day: Partly Sunny, 88°/69° Tuesday: Sunny, 90°/69° Wednesday: Mostly Sunny, 92°/71° Have something happening in your community? Hit the red Post/Submit button above to share events, classifieds, stories and local updates with Country Herald. SUPPORT LOCAL INDEPENDENT NEWS! Have a tip? Message us!