Today | Weather | Wednesday, May 20, 2026

Weather in Ames, Iowa

04:50 PM
Now
Cloudy Weather
61° F
Feels Like 61°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 2
Humidity 46 %
Today
Cloudy Weather
Day 61°
Night 48°
Precipitation 1 %
Wind 8 mph
UV Index (0 - 11+) 9

Warning: High UV Index Today: 9

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Ames Weather Forecast Updated

Last updated on

Air Quality in Ames

NOW
42 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.05 µg/m³
PM10 1.15 µg/m³
O3 0.045 ppm
NO2 0.3 ppb
SO2 0 ppb
CO 0.10 ppm
NH3 2.77 µg/m³
NO 0.04 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)
PM2.51.05 µg/m³
PM101.15 µg/m³
O388.84 µg/m³
NO20.58 µg/m³
SO20.12 µg/m³
CO117.72 µg/m³
NH32.77 µg/m³
NO0.04 µg/m³