Today | Weather | Friday, November 21, 2025

Weather in St. Paul, Minnesota

07:26 PM
Now
Cloudy Night
39° F
Feels Like 39°
Precipitation 0 %
Wind 5 mph
Humidity 67 %
Today
Cloudy Night
Day 46°
Night 34°
Precipitation 0 %
Wind 6 mph

St. Paul Weather Forecast Updated

5 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (November 21, 2024)
Cloudy Weather

Day

41°

Night

32°

Wind

11 mph

Precipitation

0 %

Air Quality in St. Paul

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

Pollutant Concentrations:

PM2.5 4.9 µg/m³
PM10 5.47 µg/m³
O3 0.021 ppm
NO2 8.2 ppb
SO2 0.1 ppb
CO 0.20 ppm
NH3 4.72 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)
PM2.54.9 µg/m³
PM105.47 µg/m³
O341.5 µg/m³
NO215.39 µg/m³
SO20.31 µg/m³
CO223.52 µg/m³
NH34.72 µg/m³
NO0.01 µg/m³