Today | Weather | Tuesday, April 28, 2026

Weather in Nampa, Idaho

01:57 AM
Now
Cloudy Night
43° F
Feels Like 39°
Precipitation 0 %
Wind 6 mph
Humidity 83 %
Today
Cloudy Weather
Day 66°
Night 43°
Precipitation 2 %
Wind 6 mph
UV Index (0 - 11+) 8

Warning: High UV Index Today: 8

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.

Nampa Weather Forecast Updated

40 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 28, 2025)
Cloudy Weather

Day

75°

Night

46°

Wind

12 mph

UV Index

8

Precipitation

5 %

Air Quality in Nampa

NOW
38 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.5 µg/m³
PM10 0.72 µg/m³
O3 0.041 ppm
NO2 0.3 ppb
SO2 0 ppb
CO 0.11 ppm
NH3 7.49 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)
PM2.50.5 µg/m³
PM100.72 µg/m³
O380.5 µg/m³
NO20.65 µg/m³
SO20.01 µg/m³
CO122.01 µg/m³
NH37.49 µg/m³
NO0 µg/m³