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Today | Weather | Monday, January 26, 2026
Active Weather Warnings

Weather in Charleston, South Carolina

08:30 PM
Now
Night
41° F
Feels Like 34°
Precipitation 0 %
Wind 10 mph
Humidity 65 %
Today
Cold Day
Day 46°
Night 25°
Precipitation 4 %
Wind 9 mph

Charleston Weather Forecast Updated

50 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (January 26, 2025)
Sunny Weather

Day

57°

Night

37°

Wind

6 mph

UV Index

4

Precipitation

0 %

Air Quality in Charleston

NOW
42 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.16 µg/m³
PM10 4.33 µg/m³
O3 0.045 ppm
NO2 1.9 ppb
SO2 0.5 ppb
CO 0.15 ppm
NH3 0.76 µg/m³
NO 0 µg/m³
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide
NH3 – Ammonia
NO – Nitric oxide

Health Recommendations:

Air quality is considered satisfactory, and air pollution poses little or no risk.

Show raw pollutant concentrations (µg/m³)
PM2.5 – 3.16 µg/m³
PM10 – 4.33 µg/m³
O3 – 88.46 µg/m³
NO2 – 3.54 µg/m³
SO2 – 1.44 µg/m³
CO – 171.48 µg/m³
NH3 – 0.76 µg/m³
NO – 0 µg/m³
View Hourly Air Quality Forecast

Weather Alerts and Warnings for Charleston

Moderate Expected Likely

Cold Weather Advisory

Cold Weather Advisory issued January 26 at 2:59PM EST until January 27 at 9:00AM EST by NWS Charleston SC
Jan 26, 10:00 PM → Jan 27, 9:00 AM
WHAT: Very cold wind chills in the low to mid teens expected.

WHERE: Portions of southeast Georgia and southeast South Carolina.

WHEN: From 10 PM this evening to 9 AM EST Tuesday.

IMPACTS: Very cold temperatures can lead to hypothermia with
prolonged exposure.
+ Read More
Use caution while traveling outside. Wear appropriate clothing, a hat, and gloves.
Updated: Jan 26, 7:39 PM Source: NWS Alert