Today | Weather | Friday, December 12, 2025

Weather in St. Paul, Minnesota

01:19 PM
Now
Cloudy Weather
18° F
Feels Like
Precipitation 15 %
Wind 15 mph
UV Index (0 - 11+) 1
Humidity 78 %
Today
Snowy Weather
Day 21°
Night -6°
Precipitation 65 %
Wind 10 mph
UV Index (0 - 11+) 0

St. Paul Weather Forecast Updated

Last updated on
Weather Forecast History
Last Year's Weather on This Day (December 12, 2024)
Cold Day

Day

Night

-4°

Wind

4 mph

Precipitation

0 %

Air Quality in St. Paul

NOW
21 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 4.78 µg/m³
PM10 4.89 µg/m³
O3 0.022 ppm
NO2 3.1 ppb
SO2 0.2 ppb
CO 0.18 ppm
NH3 0.83 µg/m³
NO 1.92 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)
PM2.54.78 µg/m³
PM104.89 µg/m³
O343.96 µg/m³
NO25.85 µg/m³
SO20.41 µg/m³
CO210.13 µg/m³
NH30.83 µg/m³
NO1.92 µg/m³