Today | Weather | Monday, January 19, 2026
Active Weather Warnings

Weather in Charleston, South Carolina

02:54 AM
Now
Night
34° F
Feels Like 27°
Precipitation 0 %
Wind 7 mph
Humidity 77 %
Today
Sunny Weather
Day 54°
Night 34°
Precipitation 2 %
Wind 9 mph
UV Index (0 - 11+) 3

Charleston Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (January 19, 2025)
Cloudy Weather

Day

61°

Night

32°

Wind

12 mph

UV Index

1

Precipitation

25 %

Air Quality in Charleston

NOW
39 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.9 µg/m³
PM10 3.99 µg/m³
O3 0.042 ppm
NO2 1.6 ppb
SO2 1 ppb
CO 0.13 ppm
NH3 0.77 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)
PM2.52.9 µg/m³
PM103.99 µg/m³
O381.97 µg/m³
NO23 µg/m³
SO22.62 µg/m³
CO153.91 µg/m³
NH30.77 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Charleston

Moderate Expected Observed

Special Weather Statement

Special Weather Statement issued January 18 at 10:03PM EST by NWS Charleston SC
Jan 18, 10:03 PM Jan 19, 9:00 AM
Lingering moisture and puddles from earlier rainfall will create
patchy black ice on area roads during the overnight and early
morning hours. Icy spots could form on paved surfaces such as
bridges and overpasses, primary and secondary roads, parking lots,
sidewalks and driveways.

Black ice is difficult to see and distinguish from dry surfaces.
The deceptive nature of black ice can catch you unaware while you
are driving or walking, causing you to lose control of your motor
vehicle or to slip and fall.
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If you plan to drive or walk, remain alert for black ice. Slow your driving speed and use care when walking on sidewalks, driveways or parking lots. Slips and falls constitute a leading cause of injuries during winter weather.
Updated: Jan 19, 1:46 AM Source: NWS Alert