Today | Weather | Sunday, August 9, 2026
Active Weather Warnings

Weather in Nampa, Idaho

05:40 PM
Now
Cloudy Weather
97° F
Feels Like 95°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 2
Humidity 12 %
Today
Cloudy Weather
Day 97°
Night 64°
Precipitation 0 %
Wind 7 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

52 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 9, 2025)
Cloudy Night

Day

86°

Night

61°

Wind

7 mph

Precipitation

0 %

Air Quality in Nampa

NOW
152 AQI
Unhealthy air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 43.73 µg/m³
PM10 44.61 µg/m³
O3 0.086 ppm
NO2 2.1 ppb
SO2 0.3 ppb
CO 0.18 ppm
NH3 1.41 µg/m³
NO 0.25 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:

Everyone may begin to experience health effects; members of sensitive groups may experience more serious health effects.

Show raw pollutant concentrations (µg/m³)
PM2.543.73 µg/m³
PM1044.61 µg/m³
O3168.31 µg/m³
NO24.03 µg/m³
SO20.72 µg/m³
CO207.35 µg/m³
NH31.41 µg/m³
NO0.25 µg/m³

Weather Alerts and Warnings for Nampa

Air Quality Alert

Air Quality Alert issued August 7 at 10:17AM MDT by NWS Boise ID
Aug 7, 10:17 AM Aug 10, 10:30 AM
WHAT: Air Quality Advisory because of degraded air quality due to
wildfire smoke.

Air Quality Index is forecast to be Unhealthy for Sensitive Groups.

WHERE: Ada, Adams, Boise, Canyon, Elmore, Gem, Owyhee, Payette,
Valley, and Washington Counties.

WHEN: UNTIL 1 PM MDT MONDAY.

IMPACTS: Members of sensitive groups may experience health
effects. The general public is not likely to be affected.
+ Read More
Air pollutants can cause breathing difficulties for children, the elderly, as well as persons with respiratory problems. Those individuals who are sensitive to increased particulate matter or smoke are encouraged to avoid prolonged or strenuous outdoor activity during this advisory. Open burning is prohibited by air quality rule. It is also recommended that all other individuals limit prolonged or strenuous activity outdoors. THIS STATEMENT IS ISSUED BY THE IDAHO DEPARTMENT OF ENVIRONMENTAL QUALITY, AIR QUALITY GROUP FOR MORE INFORMATION, CONTACT DEQ's Boise Regional Office at (208) 373-0550
Updated: Aug 9, 4:47 PM Source: NWS Alert