Today | Weather | Sunday, September 21, 2025

Weather in Columbus, Ohio

03:31 AM
Now
Night
64° F
Feels Like 64°
Precipitation 0 %
Wind 5 mph
Humidity 79 %
Today
Sunny with a Chance of Thunderstorms
Day 88°
Night 64°
Precipitation 65 %
Wind 14
UV Index (0 - 11+) 11

Warning: Extreme UV Index Today: 11+

Overexposure to the sun's harmful UV rays can cause sunburn and increase the risk of developing skin cancer, including melanoma. Protect yourself by wearing clothing that covers your skin, sunglasses, and a hat. Apply a broad-spectrum sunscreen with an SPF of 30 or higher every two hours, even on cloudy days. Minimize direct sun exposure during peak hours (10 AM to 4 PM) to reduce the risk.

Columbus Weather Forecast Updated

42 minutes ago
Last updated on

Weather Forecast History

Last Year's Weather on This Day (September 21, 2024)

Cloudy Weather

Day

93°

Night

64°

Wind

4 mph

UV Index

5

Precipitation

5

Air quality in Columbus

NOW
63 AQI
Moderate air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 13.44 µg/m³
PM10 21.36 µg/m³
O₃ 46.32 ppb
NO₂ 16.70 ppb
SO₂ 2.15 ppb
CO 261.19 ppb
PM2.5 – Fine particles <2.5μm
PM10 – Inhalable particles <10μm
O3 – Ozone
NO2 – Nitrogen dioxide
SO2 – Sulfur dioxide
CO – Carbon monoxide

Health Recommendations:

Air quality is currently in the acceptable range. However, sensitive individuals should be aware of potential risks from certain pollutants.