Today | Weather | Sunday, August 9, 2026

Weather in St. Paul, Minnesota

10:03 PM
Now
Cloudy Night
75° F
Feels Like 79°
Precipitation 6 %
Wind 6 mph
Humidity 83 %
Today
Cloudy Night
Day 88°
Night 63°
Precipitation 22 %
Wind 6 mph

St. Paul Weather Forecast Updated

41 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (August 9, 2025)
Cloudy Night

Day

82°

Night

66°

Wind

6 mph

Precipitation

0 %

Air Quality in St. Paul

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

Pollutant Concentrations:

PM2.5 4.79 µg/m³
PM10 5.34 µg/m³
O3 0.006 ppm
NO2 1.9 ppb
SO2 0 ppb
CO 0.11 ppm
NH3 3.34 µg/m³
NO 0.07 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)
PM2.54.79 µg/m³
PM105.34 µg/m³
O311 µg/m³
NO23.55 µg/m³
SO20.04 µg/m³
CO122.9 µg/m³
NH33.34 µg/m³
NO0.07 µg/m³