Today | Weather | Tuesday, April 21, 2026

Weather in Long Beach, California

05:23 PM
Now
Cloudy Weather
63° F
Feels Like 61°
Precipitation 40 %
Wind 10 mph
UV Index (0 - 11+) 1
Humidity 88 %
Today
Partly Sunny with Showers
Day 66°
Night 57°
Precipitation 82 %
Wind 8 mph
UV Index (0 - 11+) 2

Long Beach Weather Forecast Updated

51 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (April 21, 2025)
Cloudy Weather

Day

68°

Night

55°

Wind

7 mph

UV Index

9

Precipitation

0 %

Air Quality in Long Beach

NOW
42 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.2 µg/m³
PM10 2.71 µg/m³
O3 0.046 ppm
NO2 0.1 ppb
SO2 0.1 ppb
CO 0.11 ppm
NH3 0 µg/m³
NO 0.02 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)
PM2.51.2 µg/m³
PM102.71 µg/m³
O389.71 µg/m³
NO20.11 µg/m³
SO20.23 µg/m³
CO125.45 µg/m³
NH30 µg/m³
NO0.02 µg/m³