Today | Weather | Thursday, December 4, 2025

Weather in Nampa, Idaho

02:30 AM
Now
Cloudy Night
27° F
Feels Like 27°
Precipitation 0 %
Wind 4 mph
Humidity 94 %
Today
Rainy Weather
Day 43°
Night 34°
Precipitation 69 %
Wind 5 mph
UV Index (0 - 11+) 1

Nampa Weather Forecast Updated

53 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 4, 2024)
Cloudy Night

Day

28°

Night

23°

Wind

2 mph

Precipitation

0 %

Air Quality in Nampa

NOW
24 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.03 µg/m³
PM10 1.96 µg/m³
O3 0.026 ppm
NO2 1.5 ppb
SO2 0 ppb
CO 0.11 ppm
NH3 0.47 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)
PM2.51.03 µg/m³
PM101.96 µg/m³
O350.28 µg/m³
NO22.86 µg/m³
SO20.01 µg/m³
CO123.47 µg/m³
NH30.47 µg/m³
NO0 µg/m³