Today | Weather | Thursday, December 4, 2025

Weather in Salem, Oregon

01:29 AM
Now
Cloudy Weather
50° F
Feels Like 45°
Precipitation 43 %
Wind 12 mph
Humidity 89 %
Today
Rainy Weather
Day 50°
Night 46°
Precipitation 91 %
Wind 8 mph
UV Index (0 - 11+) 0

Salem Weather Forecast Updated

20 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 4, 2024)
Cloudy Weather

Day

46°

Night

28°

Wind

4 mph

Precipitation

4 %

Air Quality in Salem

NOW
24 AQI
Good air quality Dominant pollutant: PM2.5

Pollutant Concentrations:

PM2.5 5.71 µg/m³
PM10 6.46 µg/m³
O3 0.008 ppm
NO2 7.6 ppb
SO2 0.1 ppb
CO 0.23 ppm
NH3 0.06 µg/m³
NO 0.01 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)
PM2.55.71 µg/m³
PM106.46 µg/m³
O316.27 µg/m³
NO214.23 µg/m³
SO20.25 µg/m³
CO258.62 µg/m³
NH30.06 µg/m³
NO0.01 µg/m³