Today | Weather | Wednesday, October 28, 2026

Weather in St. Petersburg, Florida

02:32 PM
Now
Partly Sunny with Showers
81° F
Feels Like 82°
Precipitation 47 %
Wind 16 mph
UV Index (0 - 11+) 2
Humidity 70 %
Today
Partly Sunny with Showers
Day 81°
Night 72°
Precipitation 68 %
Wind 17 mph
UV Index (0 - 11+) 4

St. Petersburg Weather Forecast Updated

11 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (October 28, 2025)
Cloudy Night

Day

81°

Night

66°

Wind

10 mph

Precipitation

1 %

Air Quality in St. Petersburg

NOW
59 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 8.74 µg/m³
PM10 28.53 µg/m³
O3 0.057 ppm
NO2 0.4 ppb
SO2 0.2 ppb
CO 0.11 ppm
NH3 0 µg/m³
NO 0.08 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 acceptable; however, for some pollutants, there may be a moderate health concern for a very small number of people who are unusually sensitive to air pollution.

Show raw pollutant concentrations (µg/m³)
PM2.5 – 8.74 µg/m³
PM10 – 28.53 µg/m³
O3 – 111.83 µg/m³
NO2 – 0.73 µg/m³
SO2 – 0.64 µg/m³
CO – 121.94 µg/m³
NH3 – 0 µg/m³
NO – 0.08 µg/m³