Today | Weather | Tuesday, April 28, 2026

Weather in St. Paul, Minnesota

02:56 AM
Now
Cloudy Weather
45° F
Feels Like 34°
Precipitation 18 %
Wind 14 mph
Humidity 76 %
Today
Cloudy Weather
Day 55°
Night 36°
Precipitation 1 %
Wind 13 mph
UV Index (0 - 11+) 3

St. Paul Weather Forecast Updated

4 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 28, 2025)
Sunny with a Chance of Thunderstorms

Day

73°

Night

43°

Wind

15 mph

UV Index

2

Precipitation

90 %

Air Quality in St. Paul

NOW
42 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 0.51 µg/m³
PM10 0.57 µg/m³
O3 0.045 ppm
NO2 0.3 ppb
SO2 0 ppb
CO 0.12 ppm
NH3 1.73 µg/m³
NO 0 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)
PM2.50.51 µg/m³
PM100.57 µg/m³
O388.14 µg/m³
NO20.53 µg/m³
SO20.03 µg/m³
CO139.01 µg/m³
NH31.73 µg/m³
NO0 µg/m³