Today | Weather | Thursday, February 5, 2026
Active Weather Warnings

Weather in Nampa, Idaho

06:36 PM
Now
Night
45° F
Feels Like 43°
Precipitation 0 %
Wind 6 mph
Humidity 68 %
Today
Sunny Weather
Day 57°
Night 27°
Precipitation 0 %
Wind 4 mph
UV Index (0 - 11+) 3

Nampa Weather Forecast Updated

34 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 5, 2025)
Cloudy Weather

Day

46°

Night

27°

Wind

11 mph

UV Index

3

Precipitation

3 %

Air Quality in Nampa

NOW
31 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 6.52 µg/m³
PM10 8.97 µg/m³
O3 0.034 ppm
NO2 1.4 ppb
SO2 0 ppb
CO 0.14 ppm
NH3 4.06 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)
PM2.56.52 µg/m³
PM108.97 µg/m³
O366.09 µg/m³
NO22.59 µg/m³
SO20.02 µg/m³
CO158.99 µg/m³
NH34.06 µg/m³
NO0 µg/m³

Weather Alerts and Warnings for Nampa

Moderate Expected Likely

Air Stagnation Advisory

Air Stagnation Advisory issued February 5 at 1:27PM MST until February 9 at 5:00AM MST by NWS Boise ID
Feb 5, 1:27 PM Feb 9, 5:00 AM
WHAT: An extended period of stagnant air, with light winds and
little vertical mixing. This is due to an inversion near the
surface that will continue to trap pollutants.

WHERE: Portions of south central and southwest Idaho and
northeast and southeast Oregon.

WHEN: Until 5 AM MST /4 AM PST/ Monday.

IMPACTS: Poor air quality may cause issues for people with
respiratory problems.
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Persons with respiratory illness should follow their physicians advice for dealing with high levels of air pollution during periods of stagnant air.
Updated: Feb 5, 6:02 PM Source: NWS Alert