Today | Weather | Friday, October 9, 2026

Weather in St. Paul, Minnesota

05:18 PM
Now
Cloudy Weather
70° F
Feels Like 68°
Precipitation 0 %
Wind 12 mph
UV Index (0 - 11+) 1
Humidity 46 %
Today
Cloudy Weather
Day 73°
Night 59°
Precipitation 3 %
Wind 9 mph
UV Index (0 - 11+) 3

St. Paul Weather Forecast Updated

57 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 9, 2025)
Rainy Weather

Day

70°

Night

54°

Wind

8 mph

Precipitation

62 %

Air Quality in St. Paul

NOW
49 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 8.48 µg/m³
PM10 8.71 µg/m³
O3 0.053 ppm
NO2 0.7 ppb
SO2 0.2 ppb
CO 0.12 ppm
NH3 2.02 µg/m³
NO 0.13 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)
PM2.5 – 8.48 µg/m³
PM10 – 8.71 µg/m³
O3 – 103.58 µg/m³
NO2 – 1.27 µg/m³
SO2 – 0.52 µg/m³
CO – 140.96 µg/m³
NH3 – 2.02 µg/m³
NO – 0.13 µg/m³