Today | Weather | Saturday, April 4, 2026

Weather in Greeley, Colorado

11:16 AM
Now
Partly Sunny with Showers
46° F
Feels Like 48°
Precipitation 40 %
Wind 9 mph
UV Index (0 - 11+) 5
Humidity 37 %
Today
Cloudy Weather
Day 66°
Night 28°
Precipitation 40 %
Wind 9 mph
UV Index (0 - 11+) 7
Overnight Frost 8 AM – 8 AM

Greeley Weather Forecast Updated

17 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 4, 2025)
Snowy Weather

Day

37°

Night

23°

Wind

14 mph

UV Index

2

Precipitation

100 %

Air Quality in Greeley

NOW
37 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.82 µg/m³
PM10 0.98 µg/m³
O3 0.040 ppm
NO2 0.9 ppb
SO2 0.3 ppb
CO 0.10 ppm
NH3 0.75 µg/m³
NO 0.73 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)
PM2.50.82 µg/m³
PM100.98 µg/m³
O378.44 µg/m³
NO21.66 µg/m³
SO20.82 µg/m³
CO109.62 µg/m³
NH30.75 µg/m³
NO0.73 µg/m³