Today | Weather | Saturday, September 19, 2026

Weather in Salem, Oregon

12:40 AM
Now
Night
52° F
Feels Like 55°
Precipitation 0 %
Wind 1 mph
Humidity 94 %
Today
Cloudy Weather
Day 77°
Night 48°
Precipitation 1 %
Wind 5 mph
UV Index (0 - 11+) 4

Salem Weather Forecast Updated

12 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (September 19, 2025)
Night

Day

81°

Night

52°

Wind

4 mph

Precipitation

0 %

Air Quality in Salem

NOW
20 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 3.66 µg/m³
PM10 8.44 µg/m³
O3 0.022 ppm
NO2 0.8 ppb
SO2 0.1 ppb
CO 0.13 ppm
NH3 0.12 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)
PM2.53.66 µg/m³
PM108.44 µg/m³
O342.79 µg/m³
NO21.43 µg/m³
SO20.14 µg/m³
CO146.23 µg/m³
NH30.12 µg/m³
NO0 µg/m³