If you’re planning to enjoy Charleston’s warm and breezy weather this weekend, soak it up while you can—because a major weather shift is coming fast.
A powerful storm system will move into the area late Saturday night, bringing heavy rain, thunderstorms, and gusty winds on Sunday. But the biggest shock? Temperatures will take a dramatic dive, plummeting nearly 30 degrees by Sunday night.
This rapid weather flip could cause travel disruptions, localized flooding, and hazardous road conditions. The National Weather Service urges residents to stay informed and prepare for a fast-moving system that will bring two completely different seasons in just 24 hours.
Saturday, February 15: Enjoy the Warmth While It Lasts
Saturday will feel more like spring than mid-February, with temperatures climbing into the upper 60s to near 70°F (20°C).
- Morning: A mild start with some patchy clouds, but temperatures will rise quickly.
- Afternoon: Highs will reach around 68°F (20°C) with a warm breeze making it feel even better. A few stray showers can’t be ruled out, but overall, it will be a fantastic day for outdoor plans.
- Evening: Cloud cover will increase as a cold front moves in from the west. Temperatures will stay mild overnight, hovering around 63°F (17°C).
Sunday, February 16: Severe Storms and a Sudden Temperature Drop
Sunday will be a completely different story. The approaching storm system will bring rain, thunderstorms, and a dramatic drop in temperatures.
- Morning: Expect heavy rain and storms to move in, with some storms potentially bringing localized flooding and damaging wind gusts.
- Afternoon: Temperatures will briefly peak at 69°F (20°C), but as soon as the cold front arrives, they will begin a sharp decline.
- Evening: The temperature will rapidly drop into the 40s and continue falling overnight, reaching a low of 39°F (4°C).
Monday, February 17: Chilly and Clear
After the storm system moves out, Charleston will be left with cooler, breezy conditions.
- Morning: A crisp start, with temperatures around 41°F (5°C).
- Afternoon: Plenty of sunshine, but highs will only reach 56°F (14°C), making for a much chillier day than the weekend.
- Evening: Clear skies with temperatures falling back into the low 40s.
Why This Weather Shift Is Important
This dramatic weather swing could catch people off guard, especially those not prepared for the sudden cold snap after such warm conditions.
- Severe Weather Threat: Charleston is at risk for strong thunderstorms on Sunday. Gusty winds, heavy downpours, and even isolated severe storms are possible.
- Flash Flooding Risk: With so much rain falling in a short period, low-lying areas and streets prone to flooding could see standing water. Avoid driving through flooded roads.
- Rapid Temperature Drop: A 30-degree temperature swing in one day is no joke. If you’re out Sunday afternoon in short sleeves, you’ll need a winter coat by nightfall.
- Potential Travel Disruptions: The combination of heavy rain, gusty winds, and cooling temperatures could make for tricky driving conditions on Sunday evening.
How to Stay Safe and Prepared
- Prepare for a Stormy Sunday: If you have outdoor plans Sunday, consider moving them indoors or rescheduling.
- Watch for Weather Alerts: Storms can strengthen quickly. Be ready for possible severe thunderstorm warnings.
- Dress in Layers: Saturday will be warm, but by Sunday night, it will feel like winter. Have a jacket handy for the temperature drop.
- Check Travel Plans: If you need to be on the road Sunday evening, drive carefully and watch for slick roads.
- Protect Pets and Plants: The biggest temperature drop happens Sunday night into Monday morning. Bring pets inside and cover delicate plants.
Final Thoughts
Charleston’s weekend forecast is a classic example of unpredictable southern winter weather. Saturday will be warm, beautiful, and inviting—but don’t get too comfortable. By Sunday, storms will roll in, temperatures will drop like a rock, and Charleston will be back to winter mode.
If you have plans, make sure you’re prepared for everything—from sunshine and warmth to storms and freezing temperatures. This is a weekend where staying ahead of the weather will be key.
