Today | Weather | Wednesday, May 20, 2026

Weather in Spokane, Washington

02:51 PM
Now
Cloudy Weather
70° F
Feels Like 73°
Precipitation 7 %
Wind 8 mph
UV Index (0 - 11+) 5
Humidity 27 %
Today
Cloudy Weather
Day 72°
Night 43°
Precipitation 25 %
Wind 6 mph
UV Index (0 - 11+) 8

Warning: High UV Index Today: 8

High risk of harm from unprotected sun exposure. Take precautions: wear a hat, sunglasses, and apply sunscreen regularly if you’ll be outdoors for extended periods.

Spokane Weather Forecast Updated

28 minutes ago
Last updated on
Weather Forecast History
Last Year's Weather on This Day (May 20, 2025)
Sunny with a Chance of Thunderstorms

Day

61°

Night

43°

Wind

12 mph

UV Index

4

Precipitation

40 %

Air Quality in Spokane

NOW
45 AQI
Good air quality Dominant pollutant: O3

Pollutant Concentrations:

PM2.5 1.08 µg/m³
PM10 1.53 µg/m³
O3 0.049 ppm
NO2 0.2 ppb
SO2 0.1 ppb
CO 0.10 ppm
NH3 0.71 µg/m³
NO 0.07 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)
PM2.51.08 µg/m³
PM101.53 µg/m³
O396.18 µg/m³
NO20.37 µg/m³
SO20.15 µg/m³
CO111.27 µg/m³
NH30.71 µg/m³
NO0.07 µg/m³