5-day weather forecast for Mercer Island, Washington

Weather changeability for Seattle, Washington

Temperature Last Month Last Year
Average change in high temperature day-to-day 3.0° 3.9°
Average change in low temperature day-to-day 7.1° 4.2°
Precipitation Last Month Last Year
Chance of dry day after a precip day 32% 30%
Chance of precip day after a dry day 55% 19%
 
 

Weather forecast accuracy for Seattle, Washington

Last Month
Foreca   84.44%
AccuWeather   83.33%
Weather Underground   83.06%
The Weather Channel   82.50%
NWS Digital Forecast   78.45%
MeteoGroup   75.56%
Dark Sky (forecast.io)   71.67%
World Weather Online   67.22%
Persistence   47.78%
Last Year
The Weather Channel   85.95%
Weather Underground   85.93%
AccuWeather   84.34%
Foreca   83.90%
MeteoGroup   82.07%
NWS Digital Forecast   79.94%
Dark Sky (forecast.io)   78.75%
World Weather Online   65.39%
Persistence   58.19%
 

ForecastAdvisor Fact

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