Today | Weather | Friday, July 24, 2026
Active Weather Warnings

Weather in Boise, Idaho

08:44 AM
Now
Sunny Weather
70° F
Feels Like 73°
Precipitation 0 %
Wind 5 mph
UV Index (0 - 11+) 3
Humidity 64 %
Today
Hot Day
Day 104°
Night 73°
Precipitation 1 %
Wind 6 mph
UV Index (0 - 11+) 9

Warning: High UV Index Today: 9

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.

Boise Weather Forecast Updated

36 minutes ago
Last updated on

Air Quality in Boise

NOW
16 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 2.83 µg/m³
PM10 3.86 µg/m³
O3 0.017 ppm
NO2 1.2 ppb
SO2 0 ppb
CO 0.09 ppm
NH3 7.24 µg/m³
NO 0.7 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)
PM2.52.83 µg/m³
PM103.86 µg/m³
O333.84 µg/m³
NO22.25 µg/m³
SO20.04 µg/m³
CO104.68 µg/m³
NH37.24 µg/m³
NO0.7 µg/m³

Weather Alerts and Warnings for Boise

Moderate Expected Likely

Heat Advisory

Heat Advisory issued July 23 at 11:44AM MDT until July 25 at 9:00PM MDT by NWS Boise ID
Jul 23, 2:00 PM Jul 25, 9:00 PM
WHAT: Temperatures up to 107 expected, hottest Friday afternoon.

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

WHEN: Until 9 PM MDT /8 PM PDT/ Saturday.

IMPACTS: Hot temperatures may cause heat illnesses, especially
for the young, elderly, and animals.
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Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.
Updated: Jul 24, 8:08 AM Source: NWS Alert