Today | Weather | Wednesday, February 25, 2026

Weather in St. Petersburg, Florida

07:25 PM
Now
Cloudy Night
63° F
Feels Like 59°
Precipitation 0 %
Wind 8 mph
Humidity 53 %
Today
Sunny Weather
Day 66°
Night 57°
Precipitation 0 %
Wind 8 mph
UV Index (0 - 11+) 6

St. Petersburg Weather Forecast Updated

42 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (February 25, 2025)
Partly Sunny with Showers

Day

70°

Night

61°

Wind

12 mph

UV Index

5

Precipitation

49 %

Air Quality in St. Petersburg

NOW
93 AQI
Moderate air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 5.9 µg/m³
PM10 8.26 µg/m³
O3 0.068 ppm
NO2 0.3 ppb
SO2 0.2 ppb
CO 0.14 ppm
NH3 0.67 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 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)
PM2.55.9 µg/m³
PM108.26 µg/m³
O3132.93 µg/m³
NO20.53 µg/m³
SO20.4 µg/m³
CO160.2 µg/m³
NH30.67 µg/m³
NO0 µg/m³